scholarly journals The genus Salacia (Celastraceae: Salaciodeae) in peninsular India

Webbia ◽  
2021 ◽  
Vol 76 (2) ◽  
pp. 167-193
Author(s):  
Mayur Dhondiram Nandikar
Keyword(s):  
Leaf Shape ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Flower Number ◽  
Peninsular India ◽  
Fruit Texture ◽  
Iucn Red List Categories ◽  
Pedicel Length ◽  
Red List Categories

The genus Salacia (Celastraceae: Salaciodeae) in peninsular India is revised, wherein ten species are recognised. Eight species are endemic to the region. Salacia macrophylla and S. reticulata are excluded from the revision as occurrence of both the species is doubtful in mainland India. Salacia macrosperma exhibits great variation in leaf shape, flower number, pedicel length and fruit texture, hence the morphologically similar species S. beddomei and S. vellaniana are relegated to its synonymy. Descriptions, photographs, and pen and ink as well as colour drawings of all recognised Salacia species are provided with an artificial key, updated nomenclature, and synonymy. Distribution and IUCN Red list categories and criteria are also discussed. Seven binomials, S. fruticosa, S. macrophylla, S. macrosperma, S. oblonga, S. ovalis, Tontelea prinoides and Johnia coromadeliana are lectotypified.  

Begonia leipingensis (Begoniaceae), a new compound-leaved species with unique petiolule pattern from Guangxi of China

Phytotaxa ◽  
2016 ◽  
Vol 244 (1) ◽  
pp. 45 ◽  
Author(s):  
CHUN LI ◽  
LI-HUA YANG ◽  
DAI-KE TIAN ◽  
YUE CHEN ◽  
RUI-JUAN WU ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
New Taxon ◽  
Iucn Red List Categories ◽  
Molecular Phylogenetic ◽  
Red List Categories ◽  
A New Species

Begonia leipingensis D. K. Tian, L. H. Yang & C. Li (2n = 30), a new species in Begonia sect. Coelocentrum from the limestone area of Guangxi, China. B. leipingensisis is easily distinguished from any other compound-leaved species in Begonia by its large variation in petiolule number and its unique spirally-arranged petiolule pattern, which has never been seen in Begoniaceae before and rarely seen even in other angiosperm taxa. Besides having non-overlapping flowering periods, it is clearly different from B. fangii, the most morphologically similar species in the same section and with the same chromosome number. In addition to its unique petiolule pattern, B. leipingensis has longer abaxial wings, shorter internodes, and usually larger leaves, leaflets and habit. Molecular phylogenetic analysis showed that B. leipingensis formed an independent lineage belonging to Sect. Coelocentrum. Morphological and phylogenetic evidence strongly supports this species as a new taxon in Sect. Coelocentrum of Begonia. B. leipingensis was assessed to be critically endangered based on criterion outlined by IUCN Red List Categories and Criteria.

Gravesia serratifolia (Melastomataceae: Sonerileae), a new species from Marojejy National Park, Madagascar

Phytotaxa ◽  
2019 ◽  
Vol 391 (2) ◽  
pp. 115
Author(s):  
FRANK ALMEDA ◽  
HERITIANA RANARIVELO
Keyword(s):  
New Species ◽  
National Park ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Gravesia serratifolia, a new species from upper elevations of Marojejy National Park in northeastern Madagascar, is herein described, illustrated, mapped, and compared with similar species. It is readily characterized by its sparingly branched habit, leaf blades coarsely serrate with a moderate to sparse lepidote indumentum on both surfaces, inflorescence of few-flowered dichasia, calyx obsolete or evident as depressed truncate undulations with prominent calyx teeth that are laterally compressed when fresh, filaments with rusty-brown glandlike indumentum, and dorso-basal staminal appendages linear-oblong and widely spreading to coiled. A conservation assessment of Vulnerable is recommended for this species based on IUCN Red List Categories and Criteria.

A new rheophytic species of Syzygium (Myrtaceae) from the lower Kunene River of Angola and Namibia

Phytotaxa ◽  
2021 ◽  
Vol 491 (4) ◽  
pp. 281-290
Author(s):  
WESSEL SWANEPOEL ◽  
VERA DE CAUWER ◽  
ABRAHAM E. VAN WYK
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Namib Desert ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
International Boundary ◽  
Red List Categories ◽  
A New Species

Syzygium kuneneense, here described as a new species, is known only from the northern part of the Namib Desert in the Kaokoveld Centre of Endemism, southwestern Angola and adjacent northwestern Namibia. These rheophytic shrubs or small trees grow among rocks on the floodplain and banks of the lower Kunene River on the international boundary between Angola and Namibia. Diagnostic characters for Syzygium kuneneense include the oblanceolate or narrowly elliptic leaves, dense flower heads and the pedicellate flowers. A comparison of some of the more prominent morphological features to differentiate between S. kuneneense and the morphologically most similar species, S. guineense, is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU D1) is recommended for the new species.

scholarly journals Blakea echinata (Melastomataceae: Blakeeae): a new species from the Caribbean rainforest of Panama

Phytotaxa ◽  
2018 ◽  
Vol 372 (1) ◽  
pp. 104
Author(s):  
FRANK ALMEDA ◽  
DARIN S. PENNEYS
Keyword(s):  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Yellow Orange ◽  
The Caribbean ◽  
Red List Categories ◽  
Floral Bracts ◽  
A New Species

Blakea echinata from the lowland Caribbean rainforest of Panama is described, illustrated, mapped, and compared with superficially similar species. It is readily distinguished by its elongate internodes; indumentum of spreading smooth (sometimes gland-tipped) trichomes on distal branchlets, leaves, floral bracts, and calyx lobes intermixed with laterally compressed and somewhat roughened conic to clavate or ± triangular trichomes on distal branchlets, floral peduncles, and abaxial surfaces of floral bracts; rhombic reflexed basally clawed petals; yellow-orange unappendaged anthers; and ovary apex that is elaborated into a distally glandular-laciniate collar 5–6 mm long that envelops the style base. A conservation assessment of Critically Endangered is recommended for this species based on IUCN Red List Categories and Criteria.

Five endemic Peperomia (Piperaceae) novelties from Veracruz, Mexico

Phytotaxa ◽  
2018 ◽  
Vol 369 (2) ◽  
pp. 93 ◽  
Author(s):  
HÉCTOR DAVID JIMENO-SEVILLA ◽  
DANIELA VERGARA-RODRÍGUEZ ◽  
THORSTEN KRÖMER ◽  
SAMARIA ARMENTA-MONTERO ◽  
GUIDO MATHIEU
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
The State ◽  
Similar Species ◽  
Natural Habitats ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
Continuous Loss

Five new species of Peperomia (Piperaceae), endemic to the state of Veracruz, Mexico, are described, illustrated, compared with morphologically close taxa and assigned to their respective subgenus. Peperomia castilloi Vergara-Rodríguez & Jimeno-Sevilla, P. nopalana G.Mathieu, P. trichobracteata G.Mathieu & T.Krömer and P. xalana G.Mathieu are four somewhat similar species that occur at lower elevations in tropical humid forests. Peperomia zongolicana Jimeno-Sevilla & Vergara-Rodríguez occurs in tropical humid forests at mid-range elevations and is very distinct by the shape of its inflorescences. An assessment of their conservation status, considering IUCN Red List categories and criteria, revealed that they all belong to a threatened category, mainly due to the continuous loss and fragmentation of their natural habitats.

scholarly journals Begonia yenyeniae (Begoniaceae), a new species from Endau Rompin National Park, Johor, Malaysia

PhytoKeys ◽  
2018 ◽  
Vol 110 ◽  
pp. 23-37
Author(s):  
Joanne Pei-Chih Tan ◽  
Sheh May Tam ◽  
Ruth Kiew
Keyword(s):  
New Species ◽  
Native Species ◽  
National Park ◽  
Iucn Red List ◽  
Peninsular Malaysia ◽  
Red List ◽  
Similar Species ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Begoniayenyeniae is a new species of horticultural value known only from the Endau Rompin National Park, Peninsular Malaysia. It is similar to Begoniarajah with which it had previously been confused in the number of tepals and leaf characters. The new species is compared with three similar species, B.foxworthyi, B.rajah and B.reginula and photographs of all four species and descriptions of B.yenyeniae and B.rajah are provided. Molecular analysis using the ndhF-rpl132 chloroplast marker confirms the four species as distinct. Amongst native species, the three variegated species, B.yenyeniae, B.rajah and B.reginula, are some of the most popular Malaysian begonias in cultivation. Based on its restricted distribution, Begoniayenyeniae, under the IUCN Red List Categories and Criteria, is assessed as Critically Endangered.

A new Miconia (Melastomataceae: Miconieae) from upland rain forest of northwestern Guyana

Phytotaxa ◽  
2018 ◽  
Vol 369 (2) ◽  
pp. 115
Author(s):  
FRANK ALMEDA ◽  
DARIN S. PENNEYS
Keyword(s):  
Rain Forest ◽  
Iucn Red List ◽  
Red List ◽  
Morphological Features ◽  
Similar Species ◽  
Abaxial Surface ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories

Miconia angustidentata, from upland rain forest in northwestern Guyana, is described, illustrated, mapped, and compared with its superficially similar species based on morphological features. It is characterized by its ovate to elliptic 3–5-nerved entire leaves; axillary clusters of 3–5 sessile mostly 5-merous flowers; sparse cover of minute stellate trichomes on abaxial foliar surfaces, hypanthia, and calyx lobes; conspicuous oblong calyx teeth that obscure calyx lobes at anthesis and in fruit; white oblong petals that lack a subapical mucro on the abaxial surface; white stamens with ventrally inclined anther pores; (4–) 5-locular superior ovary; and ovoid-pyramidal angulate seeds with an irregularly rugulate testa and a raphe that extends about 50% the length of the seed. A conservation assessment of Endangered is recommended for this species based on IUCN Red List Categories and Criteria.

scholarly journals Miconia rheophytica (Melastomataceae: Miconieae), a new and endangered species from the Magdalena Medio region of Colombia

Phytotaxa ◽  
2018 ◽  
Vol 371 (1) ◽  
pp. 55
Author(s):  
JUAN MAURICIO POSADA-HERRERA ◽  
FRANK ALMEDA
Keyword(s):  
Endangered Species ◽  
Iucn Red List ◽  
Red List ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Leaf Surfaces ◽  
Red List Categories ◽  
Bright Blue ◽  
Lanceolate Leaf

Miconia rheophytica is described, illustrated, and compared with presumed relatives in the Octopleura clade. It is distinguished by its narrowly elliptic to ovate-lanceolate leaf blades with entire to subentire margins that have evenly spaced spreading smooth eglandular trichomes 0.8−1.4 mm long, an indumentum of dendritic trichomes with short axes and terete radiating arms on distal internodes, adaxial petiole surfaces, and primary and secondary veins on abaxial leaf surfaces, unribbed hypanthia that are constricted and tapered distally below the torus and covered with a mixture of basally roughened trichomes and dendritic trichomes with short axes, anthers with two ± truncate apical pores, eglandular anther appendages, 3-locular ovary, and berries that are bright blue at maturity. It is known only from flash-flooded riverbanks in three river canyons in the Magdalena Medio region of Antioquia, Colombia. A conservation assessment of “Endangered” is recommended for this species based on IUCN Red List Categories and Criteria.

scholarly journals Primulina silaniae sp. nov. (Gesneriaceae) from the limestone area of Guizhou Province, China

PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 123-130
Author(s):  
Jin-Quan Zhang ◽  
Hong Huang ◽  
Mei-Jun Li ◽  
Mei Huang ◽  
Quan-Yuan Li ◽  
...  
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Guizhou Province ◽  
New Taxon ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Primulina silaniae X.X.Bai & F.Wen, a new species of Primulina Hance (Gesneriaceae) from the limestone area of Wangmo County, Guizhou Province, is described and illustrated. The new species is similar to P. spiradiclioides Z.B.Xin & F.Wen, but can be easily distinguished from the latter by a combination of characteristics, especially in the lateral veins of its leaf and floral shape and tube. At present, three populations in one locality of this new taxon were found, totaling about 600 mature individuals. According to the IUCN Red List Categories and Criteria (Version 3.1), the species is provisionally assessed as Vulnerable [VU D1].

scholarly journals Odontochilus putaoensis (Cranichideae, Orchidaceae), a new species from Myanmar

PhytoKeys ◽  
2018 ◽  
Vol 103 ◽  
pp. 19-26 ◽  
Author(s):  
Ye Lwin Aung ◽  
Aye Thin Mu ◽  
Xiaohua Jin
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Identification Key ◽  
Conservation Assessment ◽  
Asian Species ◽  
Iucn Red List Categories ◽  
Light Yellow ◽  
Red List Categories ◽  
A New Species

Odontochilusputaoensis, a new species of Orchidaceae, is described and illustrated from Putao Township, Kachin State, Myanmar.Odontochilusputaoensisis close toO.duplex, but can be easily distinguished from the latter by having a light yellow lip, a bisaccate hypochile with a small, erect, blade-like and emarginate callus within each sac, a mesochile with a pair of dentate-pectinate flanges and a bilobed epichile with a pair of widely diverging lobes that are erect and concave. An identification key to the Southeast Asian species ofOdontochilusand colour photographs ofO.putaoensisare provided. A preliminary conservation assessment according to the IUCN Red List Categories and Criteria is given for the new species.

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