scholarly journals Curcuma lithophila and C. rufostriata (Zingiberaceae), two new species from Thailand, and additional notes on C. papilionacea

2021 ◽  
Vol 49 ◽  
pp. 32-43
Author(s):  
Sutthinut Soonthornkalump ◽  
◽  
Tidarat Puangpairote ◽  
Sira Niwesrat ◽  
Jana Škorničková ◽  
...  

Curcuma lithophila and C. rufostriata, two new species from Curcuma subgen. Hitcheniopsis, are described and illustrated. They are compared with their morphologically closest species, Curcuma rhabdota, C. papilionacea and C. sparganiifolia. Notes on distribution, ecology, etymology, uses and IUCN provisional assessments are provided. Further notes on the distribution of the recently described C. papilionacea and an improved IUCN conservation assessment are reported from additional collections.

2013 ◽  
Vol 70 (2) ◽  
pp. 367-379 ◽  
Author(s):  
R. R. Mill

Two new species of Convolvulus (Convolvulaceae), C. excelsus R.R.Mill and C. infantispinosus R.R.Mill, are described from Saudi Arabia. Convolvulus excelsus, an exceptionally tall species, has affinities with C. erinaceus Ledeb. but is phytogeographically disjunct from that and other allied species. Two new subspecies are also described: Convolvulus hystrix Vahl subsp. dhofarica R.R.Mill, from Oman, and C. oxyphyllus Boiss. subsp. sheilae R.R.Mill, from Saudi Arabia. Each novelty is given a provisional IUCN conservation assessment.


Phytotaxa ◽  
2021 ◽  
Vol 525 (4) ◽  
pp. 251-257
Author(s):  
LE MIN CHOO

The new species Biancaea scabrida, currently only known from Peninsular Malaysia, is described and illustrated. The new species most resembles B. parviflora and B. oppositifolia in its inflorescence, but can be distinguished from both species by its sepals which have short stiff scabrid hairs, and its pistil which has stiff and hispid hairs. It also has alternately arranged leaves and inflorescence branches, a lack of a persistent suborbicular stipule, few pinnae per rachis (2–6 pairs) and relatively fewer leaflets per pinna ((3–)5–9 pairs). A provisional IUCN conservation assessment and a taxonomic key to Biancaea is also provided here.


Phytotaxa ◽  
2020 ◽  
Vol 432 (1) ◽  
pp. 11-16
Author(s):  
SUTTHINUT SOONTHORNKALUMP ◽  
ANNOP ONGSAKUL ◽  
AUMDAH DOLAJI ◽  
JANA LEONG-ŠKORNIČKOVÁ

Curcuma papilionacea, an unusual new species of Curcuma subgenus Hitcheniopsis (Zingiberaceae) is described and illustrated here. It is known only from Satun province in southern Thailand, and is easily distinguishable among all species of subgenus Hitcheniopsis by its inflorescence of green bracts and pea-like flowers with a small labellum and very prominent lateral staminodes. It also has prominently developed anther spurs, a character not yet recorded in this subgenus. It is compared to the four morphologically closest species which are Curcuma alismatifolia, C. harmandii, C. rhabdota and C. saraburiensis. A preliminary IUCN conservation assessment of Critically Endangered (CR), and notes on its distribution and ecology are also provided.


Phytotaxa ◽  
2014 ◽  
Vol 178 (1) ◽  
pp. 23 ◽  
Author(s):  
Humberto Mendoza-Cifuentes ◽  
Marcela Alvear ◽  
Frank Almeda

Two new species of Meriania (Melastomataceae: Merianieae) are described from the Andean region of Colombia (Northern Andes) in the departments of Caldas, Cauca and Putumayo. Meriania barbosae, known only from one locality in Selva de Florencia National Park, is characterized by its calyptrate flowers, calyptras with obtuse apex, dimorphic stamens and presence of a glandular pubescence on the vegetative organs. Meriania fantastica, from the departments of Cauca and Putumayo, is characterized by its few flowered inflorescences (up to 12 flowers), large flowers (ca. 15 cm in diameter) with bright orange petals and the presence of a scutum at the petiole apex. Both species are Colombian endemics and are only known from a few specimens. Each species is illustrated, compared with presumed relatives, and provided with a conservation assessment using IUCN guidelines.


2007 ◽  
Vol 64 (1) ◽  
pp. 45-50 ◽  
Author(s):  
D. J. MIDDLETON

A new species of Gesneriaceae, Aeschynanthus mendumae D.J.Middleton, is described from Laos. The new combination Aeschynanthus membranifolius (Costantin) D.J.Middleton is made. An IUCN conservation assessment is provided.


2008 ◽  
Vol 65 (3) ◽  
pp. 353-357 ◽  
Author(s):  
D. J. Middleton ◽  
Ngoc Sam Ly

A new species of Gesneriaceae, Ornithoboea emarginata D.J.Middleton & N.S.Ly, is described from Vietnam. A proposed IUCN conservation assessment is provided.


2020 ◽  
Vol 153 (2) ◽  
pp. 267-282
Author(s):  
Petra De Block ◽  
Franck Rakotonasolo ◽  
Alexander Vrijdaghs ◽  
Steven Dessein

Background – Phialiphora (Spermacoceae, Rubiaceae) is a herbaceous genus restricted to unconsolidated white sands in open spaces in dry forests in northwestern Madagascar. The genus is characterized by the semi-succulent nature of its leaves and stems, its basal leaf rosette, its head-like inflorescences subtended by large leaf-like involucrate bracts and its isostylous flowers. Hitherto, only two species were described.Methods – Classical methods of herbarium taxonomy are followed.Key results – Two new Phialiphora species, P. glabrata De Block and P. valida De Block, are described, which brings the number of species in the genus to four. The two new species differ from the two previously described species by their glabrous branches, bracts, ovaries, calyces and fruits. They are easily distinguished from each other by the shape and size of the calyx lobes. A detailed description, illustration, distribution map and preliminary conservation assessment is given for the new species, which are assessed as critically endangered. We also present a key for the genus and discuss in detail the typical branching system, the capsules and the dispersal mechanism of Phialiphora. The description of these two new species exemplifies the uniqueness of the dry vegetations on unconsolidated white sands in western Madagascar, which are characterized by a high level of endemicity.


2011 ◽  
Vol 68 (1) ◽  
pp. 61-109 ◽  
Author(s):  
R. R. Mill

Pedicularis ser. Tenuirostres Maxim. (Orobanchaceae) is demonstrated to be the correct name for the group usually referred to as P. ser. Pectinatae Prain. The series is here revised and 12 species are accepted. Its species are centred in the NW Himalaya, particularly Pakistan where there is much local infraspecific variation. Two species are excluded from the series: Pedicularis rhynchotricha P.C.Tsoong from China (Xizang) is placed in P. ser. Rhynchotrichae R.R.Mill and P. birmanica Bonati is confirmed as a member of P. ser. Brevifoliae (Prain) Bonati. One new species of Pedicularis ser. Tenuirostres is described: P. yamazakiana R.R.Mill from Nepal, which was formerly confused with P. pectinata subsp. palans Prain. Pedicularis jainii Aswal & Mehrotra is demonstrated to be a superfluous name for P. pyramidata Royle ex Benth. Pedicularis kashmiriana var. ornata Pennell is considered to be indistinguishable from P. pyramidata although P. kashmiriana var. kashmiriana is a recognisable taxon. An IUCN conservation assessment is proposed for Pedicularis rhynchotricha and for each taxon within P. ser. Tenuirostres.


Phytotaxa ◽  
2020 ◽  
Vol 435 (1) ◽  
pp. 50-56
Author(s):  
JOSÉ FLORENCIO CERQUEIRA OLIVEIRA ◽  
LUCIANO PAGANUCCI DE QUEIROZ

We describe and illustrate here a new species of Rinorea from the Brazilian states of Bahia and Espírito Santo, under the name Rinorea gemmulata. The new species occurs in the understory of seasonally dry riparian and semi-deciduous forests. The new species could be diagnosed by the combination of opposite leaves, free stamens, velutinous connective and for the unique presence of perulate buds. We provide a distribution map, a preliminary IUCN conservation assessment, and illustrations, as well as morphological comparison with the sympatric R. ramiziana and the putatively related R. vaupesana and R. villosiflora.


Phytotaxa ◽  
2020 ◽  
Vol 453 (3) ◽  
pp. 265-274
Author(s):  
ELLIOT M. GARDNER ◽  
ARUNRAT CHAVEERACH ◽  
RUNGLAWAN SUDMOON ◽  
NYREE J.C. ZEREGA

Recent taxonomic work on Artoarpus has revealed two undescribed species from Thailand and Vietnam. Artocarpus rubrosoccatus, endemic to peninsular Thailand, resembles A. lacucha but is distinguished by its deep red clavate staminate inflorescences. Artocarpus montanus is found in the montane regions of southern and central Vietnam, and perhaps also in Thailand. This species resembles the vegetative parts of A. lowii and A. excelsus, but A. montanus differs in its longer syncarp processes and its geographic distribution. The vast majority of Artocarpus species are found in tropical lowlands, and A. montanus, along with A. excelsus, represent the only known members of the genus that are restricted to montane habitats. The provisional conservation assessment of both new species is Near Threatened, because although their known areas of occupancy are restricted, both occur in protected areas.


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