Fig 1 - uploaded by Lesley Walsingham
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Gomphostemma hirsutum. A habit; B stem detail; C indumentum of upper leaf surface; D indumentum of lower leaf surface showing long stellate hairs in detail; E indumentum of lower leaf surface; F bract; G calyx (opened out ), outer surface; H flower side view; J section through corolla; K anther detail; L anther detail; M style detail. DRAWN BY JULIET WILLIAMSON.
Source publication
A taxonomic revision of the genus Gomphostemma Wall. ex Benth. in Sabah and Sarawak is presented. Three species, G. microcalyx Prain, G. javanicum (Blume) Benth., and G. curtisii Prain are recognised; one new species, G. hirsutum Walsingham, is described.
Key Words
Gomphostemma
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Lamiaceae
-Sabah-Sarawak-taxonomy
Context in source publication
Context 1
... glabrous. Filaments c. 2.5 - 3 cm long with some white glandular simple hairs. Anthers c. 2.5 mm long, grey, with covering of short white hairs. Style with long and short stellate and branched hairs especially towards stigma; stigma lobes equal. Nutlets c. 1.6 -1.8 mm long with tuft of mixed stellate, branched and simple white hairs towards apex. Fig. 1 (IUCN 2001), based on its extent of occurrence being less than 5000 km², and because of threats to its habitat from the palm oil and logging industries: as much as 37% of the total forest area was lost in Sabah between 1950Sabah between and 2000Sabah between , and between 1984Sabah between and 2003,000 km² of forest was converted to ...
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Citations
... ex Benth. (Lamiaceae), with about 30 species, is the largest genus in the tribe Gomphostemmateae Scheen & Lindqvist (Li & Hedge 1994) and is widely distributed in the Indomalesian region (Walsingham & Bramley 2010). In China, there are at least 15 species and additional three varieties in the forests of Fujian, Guangdong, Guangxi, Hainan, Taiwan and Yunnan (Li & Hedge 1994). ...
A new forma, Gomphostemma chinense f. purpureum (Lamiaceae) from Mount Yunkai, Guangdong, China, is described. The new forma is distinguished from G. chinense in its purple-colored flowers. It is currently known only from Mount Yunkai, growing sympatrically with G. chinense f. chinense in the same area, at an altitude of 1,134-1,629 m.
The genus Gomphostemma Wall. ex Benth. is revised. Thirty-one species are recognised with three new species described: G. flexuosum Bongch. from north-eastern Thailand, southern Laos and central Vietnam, G. longipetalum Bongch. and G. repentum Bongch. from northern Myanmar. Thirty names are lectotypified. A key to species, distribution maps and conservation categories for all species are provided.
The recently established tribe Gomphostemmateae (Lamiaceae) consists of Gomphostemma, Bostrychanthera and Chelonopsis, but relationships within and between these genera have not been well studied. Only six of the approximately 46 species of Gomphostemmateae have been included in any previous phylogenetic analysis. In the present study, we used DNA sequences of two nuclear regions (ITS, ETS) and five plastid loci (psbAtrnH, rps16, trnL intron, trnLtrnF spacer, trnS-trnG) to reconstruct the phylogeny of the East Asian genus Chelonopsis for the first time. The molecular results indicate that the tribe Gomphostemmateae is monophyletic; Bostrychanthera is embedded in Chelonopsis; and Chelonopsis comprises two clades, one encompassing the taxa of Chelonopsis subg. Chelonopsis and the genus Bostrychanthera and the other consisting of Chelonopsis subg. Aequidens. This split is supported by several morphological characters. These results, which are further strengthened by morphological and cytological data, indicate that Bostrychanthera should be transferred to Chelonopsis. In addition, our results show that within C. subg. Aequidens, sect. Aequidens and sect. Microphyllum are monophyletic. Furthermore, two major clades are concordant with the SinoJapanese and SinoHimalayan distribution patterns.
