scholarly journals Two new species of Kaempferia L. (Zingiberaceae) from Cambodia and Lao PDR

Author(s):  
Oudompone Insisiengmay ◽  
Mark Fleming Newman ◽  
Thomas Haevermans

Two new species of Kaempferia L. (Zingiberaceae), Kaempferia nemoralis Insis. sp. nov. and Kaempferia pascuorum Insis. sp. nov., from Cambodia and Lao PDR are described and illustrated. Morphological similarities to their closely related taxa are discussed. Kaempferia nemoralis Insis. sp. nov. is compared with Kaempferia larsenii Sirirugsa in its vegetative parts, but distinguished by the following characters: whole plant taller, leaf sheath and young shoot apex green, petiole absent. It differs from Kaempferia rotunda L. in its floral parts by the following characters: presence of peduncle, floral tube longer, labellum purple with white line at centre, anther crest obovate, bifid, apex irregularly rounded and ovary glabrous. Kaempferia pascuorum Insis. sp. nov. is compared with Kaempferia larsenii Sirirugsa. Proposed IUCN conservation assessments are also given: Kaempferia nemoralis Insis. sp. nov. occurs in disturbed, open forest and is assessed as CR, whereas Kaempferia pascuorum Insis. sp. nov. occurs in short grassland and is assessed as EN.

Phytotaxa ◽  
2021 ◽  
Vol 522 (3) ◽  
pp. 187-199
Author(s):  
INDRAKHEELA MADOLA ◽  
DEEPTHI YAKANDAWALA ◽  
KAPILA YAKANDAWALA ◽  
SENANI KARUNARATNE

Taxonomic revisions are the most reliable pathway in unfolding new species to the world. During such a revision of the genus Lagenandra in Sri Lankan, we came across two new species: Lagenandra kalugalensis and Lagenandra srilankensis from the Wet Zone of Sri Lanka. The two new species were studied in detail and compared with the morphology of the other species described in the genus, and based on field collected data conservation assessments were performed. A detailed description for the two new species and an updated taxonomic key to the Sri Lankan Lagenandra is presented here for easy identification. Recognizing two new endemic members enhances the number of Sri Lankan species of Lagenandra to eleven and global to nineteen. According to the IUCN red data category guidelines, L. kalugalensis qualifies for Critically Endangered category under Criterion B1ab (ii,iii,v) + B2ab (ii,iii,v) while L. srilankensis qualifies for Critically Endangered category under B1ab (iii, iv) + C2 (a) (i, ii). Hence, immediate conservation measures are imperative.


1994 ◽  
Vol 72 (10) ◽  
pp. 1478-1481 ◽  
Author(s):  
Santiago Ortiz ◽  
Juan Rodriguez-Oubiña

Two new species from northeastern Somalia, Dicoma paivae and Dicoma cinerea (Asteraceae), both of section Psilocoma Harv., are described. Dicoma paivae is most similar to Dicoma cana Balf. f. of Socotra Island, from which it can be distinguished by its wider, twisted branches, larger, aristate, conduplicate leaves, smaller capitula, and straw-coloured, coriaceus inner phyllaries. Dicoma cinerea is very closely related to Dicoma schimperi (DC.) O. Hoffm. of northeast tropical Africa and the Arabian Peninsula, from which it can be distinguished by the dense whitish tomentum covering the whole plant and by its broadly ovate to almost orbicular leaves with margins bearing bulbous teeth. Key words: Asteraceae, Dicoma, new species, tropical Africa, Somalia.


Phytotaxa ◽  
2016 ◽  
Vol 272 (4) ◽  
pp. 287 ◽  
Author(s):  
BRUNO S. AMORIM ◽  
MARCCUS ALVES

Two new species of Myrcia from the Atlantic Forest of southeastern Brazil are here described and illustrated. Morphological features set them in the Gomidesia clade. Myrcia espiritosantensis and M. ruschii are recorded from southeastern Brazil, which is considered the diversity center for the genus Myrcia, and the species have restricted distribution in submontane and montane forests. Conservation assessments based on IUCN criteria are also given.


Author(s):  
Petra De Block

Homollea Arènes (Rubiaceae, subfamily Ixoroideae, tribe Pavetteae) is a genus of shrubs and small trees endemic to western and northern Madagascar. The genus comprises five species occurring in dry deciduous forest, often in limestone areas. The five species are narrow endemics and their conservation status is either Endangered (4 species) or Critically Endangered (1 species). Homollea is characterized by few-flowered, pseudo-axillary, pedunculate inflorescences, well-developed calyces with the lobes much longer than the tube, laterally flattened seeds with a shallow, elongated to linear hilum and entire endosperm, ovules arising from the upper margin of the placenta, and, pollen grains with supratectal elements in the shape of microgemmae. Until now, three species were known and their descriptions are amended. Two further species, H. furtiva De Block sp. nov. and H. septentrionalis De Block sp. nov., are described as new for science. The five species are dealt with in detail: descriptions, distribution maps, conservation assessments, illustrations, lists of exsiccatae and an identification key are given.


2020 ◽  
Vol 45 (2) ◽  
pp. 379-386
Author(s):  
Jacqueline Bonfim e Cândido ◽  
Benoît Loeuille

Abstract—Lychnophorella comprises eleven species. It is characterized by the presence of a pad-like leaf sheath, strongly imbricate persistent phyllaries, glabrous corolla lobes, and apical anther appendages that are constricted at the base. The genus is restricted to the campos rupestres of Chapada Diamantina, Bahia State, Northeastern Brazil. Lychnophorella hindii is morphologically similar to L. santosii and Lychnophorella saxicola is similar to L. leucodendron. These new species are described and illustrated, their affinities discussed and an updated key for the genus is provided.


2018 ◽  
Vol 75 (3) ◽  
pp. 421-425 ◽  
Author(s):  
D. J. Middleton

Two new species, Paraboea stellata D.J.Middleton and Paraboea minutiflora D.J.Middleton, are described and provisional conservation assessments given.


Phytotaxa ◽  
2018 ◽  
Vol 343 (2) ◽  
pp. 182
Author(s):  
BRUNO S. AMORIM ◽  
MARCCUS ALVES

Two new species of Myrcia s.l. from the Atlantic Forest of southeastern Brazil are here described and illustrated. Myrcia longisepala and M. rogersiana share morphological features which place them in the Gomidesia clade. The species are recorded for lowland and submontane forests in the Atlantic Forest. Myrcia longisepala is morphologically related to M. congestiflora, but differs by its smaller leaves, fewer secondary leaf veins, smaller petioles and fruits. Myrcia rogersiana is morphologically related to M. springiana, but differs by its reduced inflorescence main axis and flowers clustered at the apex of the inflorescence. Distribution maps and conservation assessments based on IUCN criteria are also given.


2018 ◽  
Vol 51 (1) ◽  
Author(s):  
Bounleuane Douangdeuane ◽  
Boonmee Phokham ◽  
Pornpimon Wongsuwan ◽  
Chayan Picheansoonthon
Keyword(s):  
Lao Pdr ◽  

Phytotaxa ◽  
2018 ◽  
Vol 357 (1) ◽  
pp. 66
Author(s):  
SARAWOOD SUNGKAEW ◽  
TREVOR R. HODKINSON ◽  
NIANHE XIA ◽  
ATCHARA TEERAWATANANON

Chimonocalamus auriculatus, a temperate woody bamboo (Arundinarieae), from the border between Thailand and Lao PDR, is described and illustrated here. In its vegetative state, the new species can be distinguished from all the other Chimonocalamus species by its conspicuous auricles and oral setae (bristles) on the culm leaf sheath.


Phytotaxa ◽  
2018 ◽  
Vol 361 (1) ◽  
pp. 41 ◽  
Author(s):  
STOFFEL P. BESTER ◽  
ASHLEY NICHOLAS

Two new combinations are made for taxa that were previously attributed to the genus Schizoglossum and are now placed in the genus Stenostelma. Included is the typification of Stenostelma capense, S. carinatum, S. corniculatum, S. eustegioides and S. periglossoides. Two new species, Stenostelma ligulatum and S. urceolatum, both with restricted distributions, are described here. Preliminary conservation assessments (Red List status) for the newly described taxa are provided.


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