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.

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.

scholarly journals A new species of Osteospermum subgen. Tripteris (Asteraceae: Calenduleae) from the Namib Desert, Namibia

Phytotaxa ◽  
2021 ◽  
Vol 487 (3) ◽  
pp. 185-194
Author(s):  
WESSEL SWANEPOEL ◽  
VERA DE CAUWER ◽  
ABRAHAM E. VAN WYK
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Namib Desert ◽  
Conservation Assessment ◽  
Generic Concept ◽  
Iucn Red List Categories ◽  
Woody Habit ◽  
Red List Categories ◽  
A New Species

Osteospermum namibense, here described as a new species, is known only from the northern part of the Namib Desert in the Kaokoveld Centre of Endemism, northwestern Namibia. Within a broad generic concept for Osteospermum (tribe Calenduleae), the new species is a member of subgen. Tripteris. These dwarf shrubs grow on rocky outcrops under harsh desert conditions. Diagnostic characters for Osteospermum namibense include the perennial, woody habit, di- or trichotomous branching, succulent leaves arranged in rosettes, and capitula with 12–14 rays. A comparison of some of the more prominent morphological features to differentiate between O. namibense and its possible nearest relative, O. microcarpum (=Tripteris microcarpa), 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 Crassothonna agaatbergensis (Asteraceae), a new species from the Skeleton Coast, Namibia

Phytotaxa ◽  
2019 ◽  
Vol 427 (3) ◽  
pp. 209-215
Author(s):  
WESSEL SWANEPOEL ◽  
VERA DE CAUWER
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Morphological Features ◽  
Namib Desert ◽  
Conservation Assessment ◽  
Diagnostic Characters ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Crassothonna agaatbergensis, here described as a new species, is known only from the northern part of the Skeleton Coast (part of the Namib Desert) in the Kaokoveld Centre of Endemism, northwestern Namibia. These perennial shrublets grow on basalt of the Agaatberg Mountain under harsh desert conditions. Diagnostic characters for C. agaatbergensis include the partially buried, globose, obovoid or ampulliform caudex and the inconspicuous rays which are much shorter than the involucre. A comparison of some of the more prominent morphological features to differentiate between C. agaatbergensis and its possible nearest relatives, C. clavifolia and C. protecta, is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Endangered (EN D) is recommended for the new species.

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.

Liparis popaensis (Orchidaceae), a new species from Myanmar

Phytotaxa ◽  
2019 ◽  
Vol 413 (1) ◽  
pp. 67-70 ◽  
Author(s):  
AYE THIN MU ◽  
YE LWIN AUNG ◽  
XIAOHUA JIN
Keyword(s):  
New Species ◽  
National Park ◽  
Iucn Red List ◽  
Red List ◽  
Identification Key ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Liparis popaensis, a new species of Orchidaceae, is described from Popa Mountain National Park, central Myanmar. Liparis popaensis is morphologically similar to L. odorata but it differs from the latter by having oblong-lanceolate dorsal sepal, column with two triangular wings and lip with a pair of subconical and basally adjoining calli at its base. Identification key and colour photographs are provided. A preliminary conservation assessment according to the IUCN Red List Categories and Criteria is given for the new species.

Ocimum sebrabergensis (Lamiaceae), a new species from Namibia

Phytotaxa ◽  
2019 ◽  
Vol 405 (4) ◽  
pp. 203
Author(s):  
WESSEL SWANEPOEL ◽  
ERNST J. VAN JAARSVELD
Keyword(s):  
New Species ◽  
Clayey Soil ◽  
Iucn Red List ◽  
Red List ◽  
Morphological Features ◽  
Restricted Range ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Ocimum sebrabergensis, here described as new species, has a restricted range and is only known from the Zebra Mountains within the Kaokoveld Centre of Endemism, northwestern Namibia. These shrubs grow on clayey soil among greyish black rocks of anorthosite. Diagnostic characters for O. sebrabergensis include the mauve-coloured corolla with four orbicular lobes on the posterior lip and the calyx which has the lateral lobes of the anterior lip asymmetric lanceolate. Ocimum sebrabergensis is placed in Ocimum subg. Ocimum sect. Hiantia subsect. Hiantia ser. Serpyllifolium. A comparison of some of the more prominent morphological features to differentiate between O. sebrabergensis and its possible nearest relatives, O. burchellianum and O. fimbriatum, are provided. Based on IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU D1) is recommended for the new species.

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.

Petalidium kaokoense (Acanthaceae), a new species from Namibia

Phytotaxa ◽  
2020 ◽  
Vol 468 (3) ◽  
pp. 236-242
Author(s):  
WESSEL SWANEPOEL
Keyword(s):  
New Species ◽  
Lower Lobe ◽  
Iucn Red List ◽  
Red List ◽  
Close Relative ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
Bark Peeling ◽  
A New Species

Petalidium kaokoense, here described as a new species, is only known from the Hartmann Mountains and one other location on the inland plateau in the Kaokoveld Centre of Endemism, northwestern Namibia, where it grows on hillsides and mountain slopes. Diagnostic characters for P. kaokoense include the stout trunk on older plants, white bark, peeling on the younger branches in long, narrow strips, stellate trichomes, short inflorescences of racemoid dichasia with acute linear-oblanceolate or linear-lanceolate bracts, flowers with maroon corollas with the two upper lobes connate towards the base and the lower lobe with two yellow spots near the base. A comparison of some of the more prominent morphological features to differentiate between Petalidium kaokoense and its presumed close relative, the morphologically similar P. physaloides, 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.

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.

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