Manuel B. CrespoUniversity of Alicante | UA · Environmental Sciences and Natural Resources
Manuel B. Crespo
Full Professor of Botany
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594
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Introduction
Taxonomy and molecular systematics of flowering plants. Botanical nomenclature. Plumbaginaceae, Lamiaceae, Brassicaceae, Iridaceae, Hyacinthaceae. Conservation biology of endemic, rare and endangered taxa. Biogeographical patterns in Mediterranean ecosystems.
Additional affiliations
January 1998 - January 2023
University of Alicante
Position
- Plant taxonomy & conservation
March 1995 - May 1995
September 1990 - present
University Alicante
Position
- Systematic Botany & Phylogenetics
Education
September 1979 - June 1989
Publications
Publications (594)
We here describe a new genus from Namaqualand, which is based on Tenicroa nana Snijman. Mucinaea M. Pinter, Mart.-Azorín, U. Müll.-Doblies, D. Müll.-Doblies, Pfosser & Wetschnig gen. nov. shows several character-states different from all other known species of Tenicroa and a few even do not occur in any other genus of Hyacinthaceae. Mucinaea M. Pin...
Flora iberica es el nombre de un proyecto nacido en 1980 que pretende —mediante investigación taxonómica original— poner al día y sintetizar los conocimientos actuales sobre las plantas vasculares que crecen espontáneamente en la Península Ibérica e Islas Baleares, territorio de una notable riqueza florística. El objetivo último es publicar una obr...
Some aspects concerning the type material of Linaria cavanillesii Chav. (Antirrhineae, Veronicaceae), which are conserved in different herbaria, are discussed. This name had previously been lectotypified on Tournefort’s collections that are kept at the herbarium P, though they had been regarded erroneously as
syntypes. Evidence is shown on the exis...
As part of a taxonomic revision of the genus Massonia Houtt., a new species, Massonia mimetica Mart.-Azorín, M. Pinter, M.B. Crespo & Wetschnig, is here described from South Africa. This new species is at first sight related to M. echinata L.f., but it differs in floral and vegetative characters as well as in its ecology and distribution. A complet...
Nomenclatural types are designated for the names of six taxa of Cistus (Cistaceae) described by Linnaeus, C. albidus, C. crispus, C. ladanifer, C. monspeliensis, C. populifolius, and C. salviifolius. Original material from LINN and UPS was critically examined, as well as other information in the protologues. Data relevant for typification are discu...
RESUMEN: Se discuten algunos aspectos corológicos o taxonómicos sobre plantas novedosas para alguna de las tres provincias de la Comunidad Valenciana, en concreto: Achillea filipendulina, Cardamine flexuosa subsp. debilis, Gaura lindheimeri, Ornithogalum divergens y Panicum maximum. Palabras clave: corología, taxonomía, ecología, fitosociología, Ac...
In this study, we present the results of morphological studies on the SW Mediterranean Ononis tridentata aggregate, in order to establish the identity and taxonomic status of the only known Moroccan population. By using multivariate morphometric techniques (principal component analysis and discriminant analysis), we examined the diagnostic potentia...
Disjunct distribution patterns in plant lineages are usually explained according to three hypotheses: vicariance, geodispersal, and long distance dispersal. The role of these hypotheses is tested in Urgineoideae (Hyacinthaceae), a subfamily disjunctly distributed in Africa, Madagascar, India and the Mediterranean region. The potential ancestral ran...
RESUMEN: Se actualiza la información disponible sobre la única población valenciana conocida de Orchis purpurea Huds., en la Sierra de Mariola. Su distribución conocida se amplía a dos nuevas cuadrículas U.T.M. y se constata una evidente expansión de esta planta. Además, se incluye la relación de orquídeas acompañantes, entre las que Ophrys lucenti...
A lectotype and an epitype are here designated for Statice dichotoma Cav. (Plumbaginaceae), an endemic taxon from the central part of the Iberian Peninsula, which is currently named Limonium dichotomum (Cav.) Kuntze.
In the course of a taxonomic revision of the genus Massonia Houtt., Massonia citrina M.Pinter, Deutsch, U.Müll.-Doblies & D.Müll.-Doblies, a new species of this genus from the Western Cape Province (South Africa), is here described. This species is similar to members of the M. depressa group, but it can be easily distinguished by its yellow filamen...
A new species of Drimia is here described from South Africa. Drimia cochlearis sp. nov. is at first sight closely related to both Drimia ciliata and D. sclerophylla, but it differs in a number of floral and vegetative characters that clearly support its recognition as a distinct species. Here we provide a detailed morphological description for this...
Within the framework of a taxonomic revision of the genus Albuca we here present new data on Albuca crispa, a species described as having undulate-crispulate leaves and white-green nodding flowers, it being included in A. subgen. Falconera section Trianthera (as series Trianthera). After studying both herbarium specimens and living plants from the...
A taxonomic revision of the Hypericum ericoides aggregate is presented based on morphological characters. This aggregate is endemic to the western Mediterranean basin and is currently included in H. sect. Coridium. Light microscopy and scanning electron microscopy techniques were utilized to check the diagnostic value of several characters that wer...
RESUMEN: Se aportan datos sobre la distribución y ecología de Lythrum portula (L.) D.A. Webb y Fumana baetica Güemes en la provincia de Cuenca, dos plantas que constituyen novedad para la flora de dicho territorio. En el caso de F. baetica se amplia considerablemente su área de distribución y se presenta su primera localidad fuera de los territorio...
Within the framework of a taxonomic revision of subfamily Urgineoideae, we here describe a new genus from southeastern South Africa. Sagittanthera gen. nov. is at first sight related to Rhadamanthus and Tenicroa, but it can be clearly differentiated by the presence of bracteoles and the anthers connate to form a cone-like structure dehiscing by min...
Limonium quinnii and L. rhodense (Plumbaginaceae) are here described from the maritime cliffs of Rhodes island (Greece). These new species can be included in the Limonium palmare aggregate, a group highly diversified in the eastern Mediterranean but still poorly known. The differences among L. quinnii and L. rhodense with the related taxa are provi...
In the frame of a taxonomic revision of Stellarioides Medik. we report here new data on the identity of Ornithogalum canaliculatum Lag. After studying natural populations and herbarium collections of Stellarioides Medik. from Africa, data supporting the synonymisation of O. canaliculatum Lag. to Stellarioides sessiliflora (Desf.) Speta are provided...
The genus Trimelopter has been recently reinstated to include Ornithogalum unifolium and other closely related species from Southern Africa, comprising up to 10 species. Within the context of a revision of Trimelopter, a new species, T. craibii, is here formally described to name plants discovered by the late Charles Craib in the North West Provinc...
Within the framework of a taxonomic revision of the genus Stellarioides we here describe a new species from the Eastern Cape Province in South Africa. Stellarioides chartacea sp. nov. is at first sight related to S. arida and S. tenuifolia, but it can be clearly differentiated by a number of characters. A complete description is presented for this...
The name Xiphion vulgare Mill. is currently applied to an iris species with the outer tunics of the bulb membranous, not fibrous, at the apex, perianth tube inconspicuous or absent, outer tepals panduriform and inner tepals oblong-lanceolate to ovate-lanceolate, erect, about as long as the outer. It is found in the western Mediterranean basin, from...
As a part of the revision of Xiphion (Iris subg. Xiphion) for the ‘Flora Iberica’ project, some material collected in the 19th and 20th centuries in the Tangiers area (northern Morocco) was found impossible to assign to any of the known taxa in the genus. In part, they resembled X. junceum and X. rutherfordii, but showed a peculiar combination of v...
Helianthemum caput-felis is listed as Endangered due to its restricted distribution and declining trends identified for its distribution and population size. Its area of occupancy is low, fragmentation patterns have been observed, the number of locations where the species is present has decreased and regressive trends have been reported for the ext...
Nomenclatural types are reported for seventeen taxa belonging to Iris and six related genera, which are accepted in the forthcoming treatment of Iridaceae for Flora iberica. Among them, 13 lectotypes and one neotype are designated for the first time, and three previous typifications are briefly commented.
RESUMEN: Tipos nomenclaturales de lirios i...
The results of an ethnobotanical study in the lower basin of the La Palma River (Trujillo State, Venezuela) are presented. The local knowledge about the use of plants present in forest relicts was registered through participatory surveys, semi-structured interviews, open-ended conversations and field trips. One hundred and seventeen (117) useful sp...
Albuca tenuifolia and A. shawii (Ornithogaloideae), two distinct species from South Africa.
We are requesting a binding decision under Art. 53.5 as to whether Lerouxia Mérat and Lerrouxia Caball. are sufficiently alike to be confused and thus should be treated as homonyms. In our opinion, such a treatment would be the best choice towards stability of nomenclature. Reversing the current situation would result in abandoning of the increasin...
Martínez-Azorín, M. & Crespo, M.B. 2012. Ethesia tanquana (Ornithoga-loideae, Hyacinthaceae), a new species from the Tanqua Karoo (South Africa), with notes on E. haalenbergensis. Anales Jard. Bot. Madrid 69(2): 201-208.- As a part of a taxonomic revision of Ethesia Raf., a new species, E. tanquana Mart.-Azorín & M.B.Crespo, is described from the T...
2012. Does Tamarix dalmatica (Tamaricaceae) occur in Spain? Anales Jard. Bot. Madrid 69(2): 253-258.- The presence of Tamarix dalmatica in the Iberian Peninsula, and its confusion in Spain with the native species T. boveana and T. africana, is discussed. A morphological comparison between these three species, and a critical study of the causes for...
Albuca tenuifolia Baker was described and illustrated in 1872 from South African material sent by Peter MacOwan to William Wilson Saunders in England, neither citing a precise locality nor a herbarium collection studied by Baker. This species has been mostly overlooked and has only been cited in the recentmost checklist of the South African fl ora...
The name Ornithogalum narbonense L. (Loncomelos narbo-nense (L.) Raf.) is usually applied to a hexaploid (2n = 54) circum-Mediterranean species of O. subg. Beryllis (Salisb.) Baker with an elongate raceme of white flowers (cf.
Until now, Albuca bifolia Baker was poorly known. Plants fitting the original description of A. bifolia were found at the type locality near Grahamstown, South Africa, during extensive field work for a revision of the genus Albuca L. Here we provide new data and a detailed morphological description for this species. Furthermore two new species, Alb...
RESUMEN: Se aportan datos sobre algunos táxones del grupo de Centaurea linifolia presentes en las sierras de la Comunidad Valenciana y áreas limítrofes. Como resultado se propone reconocer en C. antennata tres subespecies, con síndromes de ca-racteres propios, que ocupan áreas geográficas bien delimitadas y presentan un comportamiento ecológico dif...
general discussion on the classification of Iris and its segregate genera. Ma-vrodiev, however, adopted the name Limniris subg. Limniris for the monophyletic group that he called "clade Pseudo-iris". However, as a validly published name under the Vienna Code (McNeill & al. in Regnum Veg. 146. 2006), Pseudo-iris must be taken into account when it co...
Pseudo-iris was described by Medikus (l.c.) to accommodate Iris pseudacorus L. The name was attributed to Dodonaeus (Stirp. Hist. Pempt.: 248. 1583) as was the one species name, and the genus was clearly differentiated from other related iris groups that were also accepted at generic rank, such as Iris L., Xiphion Mill. (Iris subg. Xiphion (Mill.)...
A prerequisite in any conservation programme of Plant Genetic Resources is estimation
of diversity. The inventory of wild and naturalized relatives of priority crops in Venezuela (CWR) is
based on the main Catalogues of Flora in the country, selecting taxa closely related to crops, according to
the concepts of ‘‘gene pool’’ and ‘‘taxonomic group’’....
The Spanish populations of Juniperus oxycedrus subsp. macrocarpa are restricted to coastal dune habitats of the Mediterranean and Atlantic coasts. Here, we investigate the genetic structure in this taxon and the possible existence of detailed phylogeographic structure associated with the Strait of Gibraltar using data from amplified fragment length...
RESUMEN: Se amplía el área de distribución del endemismo ibérico Ferula loscosii en el noroeste de la provincia de Alicante, al haber sido hallados nuevos núcleos poblacionales situados a una distancia de hasta 4 km respecto al único núcleo anteriormente conocido en Villena. Asimismo se adjunta abundante material gráfico y descriptivo sobre las pla...
Until now, Albuca bifolia Baker was poorly known. Plants fitting the original description of A. bifolia were found at the type locality near Grahamstown, South Africa, during extensive field work for a revision of the genus Albuca L. Here we provide new data and a
detailed morphological description for this species. Furthermore two new species, Al...
Oenothera laciniata is reported for the first time in the Valencian Community (E of Spain), a report that also constitutes its second recent reference for the Iberian Peninsula. This exotic species is native to the eastern part of North America, and it should be considered as a potential invader in the Mediterranean ecosystems. Morphological data a...
A neglected species of Daucus (Apiaceae), D. mauritii, endemic to northern Morocco, is revived. A full description, illustrations and photographs are provided, and a lectotype is designated. This species has previously been synonymized under D. muricatus. However, although D. mauritii shares morphological features with D. muricatus and D. aureus, i...
Rhaponticum repens is reported for the first time for the flora of the Iberian Peninsula. The species is native from Central Asia and has be-come invasive in Argentina, Canada, Europe and the USA. It was detected for the first time in abandoned fields from Vilablareix, near the city of Girona (Catalonia, Spain) and in the valley of the Vinalopó in...
![Fig. 1.– Neotype of Salicornia perennis Mill. [Thompson Lowne s.n., K]...](profile/M-Angeles-Alonso-Vargas/publication/232710542/figure/fig1/AS:393459857936386@1470819551065/Neotype-of-Salicornia-perennis-Mill-Thompson-Lowne-sn-K-C-The-Board-of-Trustees_Q320.jpg)
GUILLÓ, A., M. Á. ALONSO, A. JUAN & M. B. CRESPO (2011). Nomenclatural notes on Sarcocornia perennis (Mill.) A. J. Scott (Amaranthaceae). Candollea 66: 331–335. In English, English and French abstracts. Some nomenclatural comments are reported on Sarcocornia perennis (Mill.) A. J. Scott (≡ Salicornia perennis Mill.) (Amaranthaceae), a plant widely...
New data on the Balearic endemism Daucus carota L. subsp. majoricus A. Pujadas (Apiaceae) in the Cabrera archipelago Daucus carota L. subsp. majoricus A. Pujadas is a Balearic endemic plant which is only present in the Cabrera archipelago and west of Majorca island. This taxon belongs to the D. carota L. sensu lato group, a taxonomic aggregate that...
Within the context of a revision of Albuca, a new species, here described as Albuca annulata Mart.-Azorin & M. B. Crespo sp. nov., was found in three populations in the Albany Centre of Endemism, Eastern Cape, South Africa. This new species is closely related to Albuca bakeri Mart.-Azorin & M. B. Crespo and A. caudata Jacq., but it can be clearly d...
Se presentan los mapas de distribucion en la Peninsula Iberica y las islas Baleares de las especies del genero Dasya, correspondientes a D. baillouviana, D. corymbifera, D. hutchinsiae, D. ocellata, D. rigescens, D. rigidula y D. sessilis.
The name Chamaeiris Medik. is revived for taxa belonging to Iris subg. Xyridion (Tausch) Spach, subg. Gramniris Spach and subg. Spathula Spach. It has priority over Xyridion (Tausch) Fourr., a genus name that has been recently reinstated in a sense that matches Medikus's original concept of Chamaeiris. A new ar-rangement is presented for this genus...
Albuca tenuifolia Baker was described and illustrated in 1872 from South African material sent by Peter MacOwan to William Wilson Saunders in England, without a precise locality. Since then this species has been cited in later works although with many uncertainties. In addition, no type has been designated for this taxon. After field work in the Gr...
The study of plant speciation in oceanic islands has improved enormously by the help of molecular phylogenies. Studies have targeted groups present both mainland and the islands, with the aim of understanding plant migration and evolution in isolation. In addition, relatively young volcanic islands give the opportunity to place the evolutionary pro...
The study of plant speciation in oceanic islands has improved enormously by the help of molecular phylogenies. Studies have targeted groups present both mainland and the islands, with the aim of understanding plant migration and evolution in isolation. In addition, relatively young volcanic islands give the opportunity to place the evolutionary pro...
The name Albuca caudata Jacq. has been widely misunderstood or even ignored since its description in 1791. After studying herbarium specimens and living populations in South Africa, plants fitting Jacquin´s concept of that species are found to be widely distributed in the Eastern Cape, mainly in the Albany centre of Endemism. Furthermore, some dive...
Vella L. (Brassiceae, Brassicaceae) is endemic to south-western Mediterranean Region, with a distribution extending to the eastern half of Spain, northern Morocco and northwestern Algeria. It belongs to subtribe Vellinae, together with other taxa with a similar or wider distribution range, such as Euzomodendron, Boleum, Carrichtera and Succowia. Se...
The name Lavatera x columbretensis, recently proposed for a hybrid growing in the Columbretes Archipelago (Castellón, E of Spain), is transferred to Malva. Additional data on nomenclature of other related taxa of ‘L. sect. Anthema’ and ‘L. sect. Axolopha’, are also reported.
Morphologicai evidence supports the species status of the endemic Meditemanean red algal taxon Dasya rigescens. Compared to D. ocellata, which is a more widely distributed and less deep species D. rigescens shows clear morphological differences in cortication cells, pseudolaterals, spermatangial branches, cystocaps and stichidia location. The nomen...
Morphological evidence supports the specific status of the endemic Mediterranean red algal taxon Dasya rigescens. Compared to D. ocellata, which is a more widely distributed and less deep species, D. rigescens shows clear morphological differences in cortication cells, pseudolaterals, spermatangial branches, cystocarps and stichidia location. The n...
Within the context of a revision of Albuca, a new species, here described as Albuca annulata Mart.-Azorín & M. B. Crespo sp. nov., was found in three populations in the Albany Centre of Endemism, Eastern Cape, South Africa. This new species is closely related to Albuca bakeri Mart.-Azorı´n & M. B. Crespo and A. caudata Jacq., but it can be clearly...
Se presentan novedades corológicas para la flora vascular de la Comunidad Valenciana y de la Región de Murcia. En concreto se aportan nueve primeras citaspara la provincia de Alicante (Allium nigrum, Ammi majus, Centaurea diluta, Cnicus benedictus, Chaenorhinum serpyllifolium, Dactyloctenium aegyptium, Gamochaeta pensylvanica, Jurinea pinnata y Ses...
Analyses of AFLP markers were carried out for three populations of Helianthemum caput-felis. The selected populations corresponded to well-fragmented areas from Spanish territories: Iberian Peninsula (Alicante), Balearic Islands (Majorca) and North Africa (Melilla). Analyses of molecular data (PCO, Fst values and Fst dendrograms) revealed a separat...
Analyses of AFLP markers were carried out for three populations of Helianthemum caput-felis. The selected populations corresponded to well-fragmented areas from Spanish territories: Iberian Peninsula (Alicante), Balearic Islands (Majorca) and North Africa (Melilla). Analyses of molecular data (PCO, Fst values and Fst dendrograms) revealed a separat...
RESUMEN La presente memoria de investigación recoge los resultados del grupo de trabajo de la Red Elaboración de las guías de primer curso de las titulaciones de Grado en Biología y Grado en Ciencias del Mar del PROYECTO REDES DE INVESTIGACIÓN EN DOCENCIA UNIVERSITARIA 2010, presentada en la MODALIDAD I: Redes de Investigación en docencia universit...
The distribution maps of the species of Dasya found along the coasts of the Iberian Peninsula and the Balearic Islands, D. baillouviana, D. corymbifera, D. hutchinsiae, D. oceilata, D. rigescens, D. rigidula and D. sessilis, are shown.
The taxonomic arrangement within subfamily Ornithogaloideae (Hyacinthaceae) has been a matter of controversy in recent decades: several new taxonomic treatments have been proposed, based exclusively on plastid DNA sequences, and these have resulted in classifications which are to a great extent contradictory. Some authors have recognized only a sin...
The name Odontites kaliformis (Pourr. ex Willd.) Pau is usually applied to an eastern Iberian endemic, growing on dry calcareous soils (cf. Bolliger in Willdenowia 26: 37–168. 1996). It is based on Euphrasia kaliformis Pourr. ex Willd., which was proposed in a footnote by Willdenow (l.c.: 635–636) for plants collected in "Hispania", to which he syn...
Rhodonema was described as a new monotypic genus of ‘Siphonigonatae’ by Martens in 1824, to include R. elegans. The name was synonymised soon to Dasya, a genus proposed by C. Agardh also in 1824, again for a sole species D. pedicellata. It was later widened by C. Agardh himself (Sp. Alg. 2(1): 116–123. 1828) to group seven species, some of which ar...
A new population of Euphorbia medicaginea was found in Alicante (Spain), near Mutxamel. This is the second record for this species in Alicante province, in a site that is located over 50 km south from its first location in Pego. The distribution area is therefore widened as well as its chorological rank, from the Diánico district (Setabense sector)...
As a part of a taxonomic revision of the Iberian and Balearic taxa of Ornithogalum, the results concerning
O. subg. Ornithogalum are reported. Quantitative and qualitative characters were studied in detail, and they were evaluated for the taxonomy of the three accepted taxa: O. baeticum Boiss., O. bourgaeanum Jord. & Fourr. and O. divergens Boreau....
The phylogenetic study of subfamily Ornithogaloideae (Hyacinthaceae) brings new biogeographic evidence on the hypothetical floristic migration routes from southern Africa to Eurasia. On the basis of the available data, examples are discussed on five genera of this subfamily (Dipcadi, Battandiera, Stellarioides, Albuca, and Nicipe), the present dist...
Resumen Para estudiar la diversidad genética de Helianthemum caput-felis, individuos de tres áreas (Alicante, Islas Baleares y Melilla) fueron analizados mediante marcadores AFLP. El análisis de los datos moleculares (PCO y valores de Fst) revelan cierta diferenciación entre la población de Melilla y las poblaciones Ibérico-Baleares, y una relación...
As part of a taxonomic revision of the Iberian and Balearic taxa of Ornithogalum, quantitative and qualitative characters are studied in detail in Ornithogalum subg. Beryllis (Salisb.) Baker, and they are evaluated for taxonomy of the two taxa: O. narbonense L. and O. pyrenaicum L. A complete description is presented for both species, and data on t...
In the present contribution, the nomenclature of the casmophyte community Jasonio-Teucrietum thymifolii is reviewed, with a new arrangement including four territorial sub-associations. First, the correct authority and publication date for the association is Jasonio-Teucrietum thymifolii Mateo 1983. Two new combinations are stated: Jasonio-Teucrietu...
Questions
Question (1)
Accepting that circumscription of taxonomic ranks is mostly a matter of preference, in some cases we have to decide how broad or narrow is the sense we accept for a given taxon. Currently, phylogenetic approaches are providing a solid basis from which taxa circumscription can be more consistently supported. However, in the particular case of genera we are currently seeing an increasing trent to accept broader groups whitin which many subgroups (subgenera, sections, etc.) proliferate. And the principal problem here is that the broader is the generated group (after merging previous seggregates) the more difficult is to defined it with regard to close relatives that now are very easy to include in the newly and broaderly circumscribed group. And all this is based on the argument of monophyly. Why should be generate broader genera (that are morphologically highly heterogeneous) by inclusion or morphologically (an usually also biogeographycally) well-defined groups, each one being also monophyletic? What advantages or inconveniences has any of those possible solutions (broader genera vs. narrower genera, or vice-versa), both being correct from a phylogenetic view?
