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Recent studies on the genus Asplenium L. from the neotropics have resulted in the description of the following three new species: A. palasiosii, A. sessilipinnum and A. vareschianum . The first species is characterized by single fronds, strongly ascendent veins and sori and entire blade margin. The second species particularly have sessile pinnae wi...
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... its blade size and sessile pinnae, the new species is similar to A. flavellulatum Kunze however, A. sessilipinnum differs in its herbaceous (vs. chartaceous) laminar tissue, crenate to lobulate (vs. pinnate) and shorter (0.7-1.5 mm long vs. 1.5-4 cm) pinnules and, epiphytic (vs. terrestrial) habitat. In its short and sessile pinnules is similar to A. dimidiatum Stolze, but differs in glabrous (vs. scaly) axes, ovate (vs. trapezoidal) and more incised pinnules and, different altitudinal distribution (1800-2330 m vs. 300-400 m). E TYMOLOGY. The name of this species refers to the sessile pinnae. Asplenium vareschianum A. Rojas, nom. et stat. nov. from Asplenium auritum Sw. var. obtusum Kunze ex Mett., Fil. Hort. Bot. Lips. 127, t. 8, f. 3-6. 1856. Fig. 3. A Asplenio monodon Liebm. rachidi alatae, pinnis sessiles differt. Epiphytic; rhizome 2-4 mm in diameter, compact, ascending; Rhizome scales 2.5-5 x 1- 2 mm, ovate to lanceolate, entire, membranaceous, clathrate; fronds 14-30 cm long; stipe 4.5-11.5 cm long, brown-grayish, scaly on the base, elsewhere glabrous, winged, thhe wing to 0.3 mm broad, gradually reduced to the base; blade 8-18.5 x 2-3.5 cm, lanceolate to narrowly elliptic, pinnatifid, basally truncate, apicaly narrowly acute; rachis brown-grayish to strawish apically, winged, the wing, 0.5-1 mm to each side, sparsely scaly, the scales 0.5-1.5 x less than 0.05 mm, linear, 2 cells in broad, black with lumen of cells hyaline; segments 5- 15 x 3-6 mm, oblong-elliptic, sessile, with same broad along it or reduced to middle in the base, apically optuse, margin entire in the base to crenate or dentate in the apex; costae strawish, glabous or scaly in the base; veins simple to bifurcate; sori 1.5-3 mm long, withish to pale yellow, entire to crenate. P ARATYPES . COLOMBIA. Santander : vicinity of El Roble, about 1500 m, 16 Feb 1927, E. Killip & A. Smith 19381 (US). VENEZUELA. Prope Colonia Tovar, 1854- 1855, A. Fendler 141 (MO, US). Aragua : Rancho Grande, Parque Nacional, no date, E. García 9 (US); Rancho Grande, 10 Mar 1951, H. Gines 4266 (US); Parque Nacional Henrry Pittier, slopes between trail up Periquito and Fila de Periquito, along upper slopes of Tributary to Quebrada Palo Vaco, on side towards Lago Valencia, opposite Rancho Grande Biological Station, 1300-1400 m, 25 Oct 1961, J. Steyermark et al. 89888 (US); Parque Nacional “H. Pittier”, Racho Grande, en la pica entre el hotel y la toma de agua, 1100 m, 31 May 1966, J. Steyermark et al. 95809 (US). Barinas : Distrito Pedraza, E of Carrizal (La Escaza on maps), along the S bank of the Río Canagua, on the trail to Santa Gertrudis, Parque Nacional Sierra Nevada, ca. 8o38’N, 70o46’W, 25 June 1988, L. Dorr et al. 5680 (MO). Lara : Distrito Morán, entre “Agua Amarilla” y “Santo Domingo”, sitio denominado “La Mucutia”, 9o29’N, 69o39’W, 1600 m, 24 Oct 1987, R. Rivero & W. Díaz 1310 (MO). Portugueza : Distrito Ospino, 20 km W de la Estación, Laguna de San Bartolo and vicinity (turnoff from road to Palma Sola), ca. 9o26’N, 69o38’W, ca. 1400 m, 10 Nov 1982, A. Smith et al. 1169 (MO). The new species is similar to A. monodon Liebm. in its lanceolate and pinnate fronds, but differs in its strongly winged rachis (0.5-1 mm broad to each side vs. absent or less than 0.5 mm broad) and sessile (vs. free) pinnae. E TYMOLOGY. This species is dedicated to Volmark Vareschi, who made several important contributions to Venezuelan Pteridophytes. A CKNOWLEDGMENTS I thank Cyril Nelson for the translation of the diagnosis to Latin, the curators of the herbaria of the Missouri Botanical Garden (MO) ...
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Epiphytes make up roughly 10% of all vascular plant species globally and play important functional roles, especially in tropical forests. However, to date, there is no comprehensive list of vascular epiphyte species. Here, we present EpiList 1.0, the first global list of vascular epiphytes based on standardized definitions and taxonomy. We include obligate epiphytes, facultative epiphytes, and hemiepiphytes, as the latter share the vulnerable epiphytic stage as juveniles. Based on 978 references, the checklist includes >31,000 species of 79 plant families. Species names were standardized against World Flora Online for seed plants and against the World Ferns database for lycophytes and ferns. In cases of species missing from these databases, we used other databases (mostly World Checklist of Selected Plant Families). For all species, author names and IDs for World Flora Online entries are provided to facilitate the alignment with other plant databases, and to avoid ambiguities. EpiList 1.0 will be a rich source for synthetic studies in ecology, biogeography, and evolutionary biology as it offers, for the first time, a species‐level overview over all currently known vascular epiphytes. At the same time, the list represents work in progress: species descriptions of epiphytic taxa are ongoing and published life form information in floristic inventories and trait and distribution databases is often incomplete and sometimes even wrong. Since the epiphytic growth blends into soil‐rooted growth and vice versa, the inclusion or exclusion of particular species in the current list will sometimes be contentious. Thus, initiating a well‐founded discussion was one of the motivations for compiling this database; our list represents 31,311 hypotheses on the life form of plant species, and we welcome feedback on possible omission or erroneous inclusions. We release these data into the public domain under a Creative Commons Zero license waiver. When you use the data in your publication, we request that you cite this data paper. If EpiList 1.0 is a major part of the data analyzed in your study, you may consider inviting the EpiList 1.0 core team as collaborators.
