Taxonomy of Atlantic Central African orchids 4. A new species of Tridactyle (Vandeae, Epidendroideae, Orchidaceae) from Gabon and Equatorial Guinea

Phytotaxa ◽  
2015 ◽  
Vol 212 (2) ◽  
pp. 141 ◽  
Author(s):  
Tania D'haijère ◽  
Sophie Leguil ◽  
Pierre Meerts ◽  
Tariq Stévart
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Leaf Shape ◽  
Central Africa ◽  
Iucn Red List ◽  
Red List ◽  
Equatorial Guinea ◽  
Preliminary Assessment ◽  
Iucn Red List Categories ◽  
A New Species

Nine plants specimens of an apparently new Tridactyle species were collected in Gabon and Equatorial Guinea. They have an erect habit and a particular leaf shape which makes the species unique in the genus. The flowers and inflorescences share the general morphology of Tridactyle tridactylites, one of the most frequently collected species of Tridactyle in Central Africa. Four other Tridactyle taxa possess a 3 to 6 cm long inflorescence and a labellum with entire side lobes, and one species, Tridactyle stevartiana, has leaves of similar width and length. We here show that these new 9 specimens represent a new species, described as Tridactyle minutifolia. The diagnostic traits include linear thin leaves, and erect habit. Interestingly, many specimens of Tridactyle minutifolia lack spur; this phenomenon is sometimes found in orchids growing in an environment where their pollinators are absent. A table of the diagnostic characters of the six Continental African Tridactyle taxa considered here is included. A preliminary assessment of the conservation status of T. minutifolia, using the IUCN Red List Categories and Criteria is provided.

Taxonomy of Atlantic Central African orchids 3. A new species of Bulbophyllum Thouars (Orchidaceae) from the Monts de Cristal, Gabon

Phytotaxa ◽  
2014 ◽  
Vol 177 (1) ◽  
pp. 26 ◽  
Author(s):  
Tariq Stévart ◽  
Jean Philippe Biteau ◽  
Valérie Cawoy ◽  
Vincent Droissart
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Leaf Shape ◽  
Central Africa ◽  
Iucn Red List ◽  
Preliminary Assessment ◽  
Iucn Red List Categories ◽  
Lowland Forests ◽  
Distinguishing Features ◽  
A New Species

Two specimens of an apparently new Bulbophylum species were found in the Monts de Cristal, Gabon. They have a unique leaf shape among the species of this genus in Continental Africa. The flower shares the general morphology of Bulbophyllum saltatorium, one of the most common members of Bulbophyllum in Central Africa. Eight other taxa of the Continental African Bulbophyllum possess unifoliate pseudobulbs and long hairs on the lip. Comparison with them indicates that the new collections from Gabon represent a distinctive species, not yet known in the genus. We describe it here as Bulbophyllum pauwelsianum. The distinguishing features of the species include its leaves, which are pendant, coriaceous, linear, semiterete and v-shaped in transverse section, and its sepals, which possess relatively long hairs on their margins. A table of the taxonomic treatments of the nine Continental African Bulbophyllum taxa considered here is included. A taxonomic key and a table of the diagnostic characters of these nine taxa are given to facilitate identification. The new species is restricted to lowland forests of the Monts de Cristal in Gabon. A preliminary assessment of the conservation status, using the IUCN Red List Categories and Criteria is provided.

scholarly journals A new species (Begonia giganticaulis) of Begoniaceae from southern Xizang (Tibet) of China

PhytoKeys ◽  
2021 ◽  
Vol 187 ◽  
pp. 189-205
Author(s):  
Dai-Ke Tian ◽  
Wen-Guang Wang ◽  
Li-Na Dong ◽  
Yan Xiao ◽  
Min-Min Zheng ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Conservation Status ◽  
Female Flower ◽  
Iucn Red List ◽  
Red List ◽  
Current Data ◽  
Iucn Red List Categories ◽  
Unique Shape ◽  
A New Species

Begonia giganticaulis, a huge new species in Begonia sect. Platycentrum of Begoniaceae from southern Xizang (Tibet) of China, is described. Morphologically, it is mostly similar to B. longifolia and B. acetosella, but clearly differs from the former mainly by its dioecious and taller plants, sparse hairs on abaxial veins, longer inflorescence, unique shape of fruits, and differs from the latter mainly by its late and longer flowering time, 6-tepals of female flower and 3-loculed ovary. The phylogenetic analyses also support the separation of the new species from other taxa. Based on the current data, its conservation status is assigned to Endangered (B2a) according to the IUCN Red List Categories and Criteria.

scholarly journals Spiradiclis karstana (Rubiaceae), a new species from Yunnan, China

PhytoKeys ◽  
2019 ◽  
Vol 117 ◽  
pp. 1-8 ◽  
Author(s):  
Lei Wu ◽  
Xiong Li ◽  
Wen-Jian Liu ◽  
Quan-Ru Liu
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
First Time ◽  
A New Species

Spiradicliskarstana, a new species of Spiradiclis (Rubiaceae) collected from Yunnan, China, is described for the first time. It is morphologically close to S.jingxiensis, but differs from the latter mainly by its inflorescences with 5–9 flowers, its 1.5–2.4 mm long peduncles, its stipules shorter than 1 mm and the 5–12 pairs of secondary veins. The conservation status is assessed as “Vulnerable” (VU) according to the IUCN Red List Categories and Criteria.

Valeriana caparaoensis (Valerianaceae nom. conserv.), a New Species from Southeastern Brazil

2020 ◽  
Vol 45 (1) ◽  
pp. 219-225
Author(s):  
Cassio Rabuske-Silva ◽  
Marcos Sobral ◽  
João Ricardo Vieira Iganci
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Southeastern Brazil ◽  
Southern Brazil ◽  
Iucn Red List Categories ◽  
Tropical Grasslands ◽  
Red List Categories ◽  
A New Species

Abstract—Valeriana caparaoensis, a new species from the High Altitude Tropical Grasslands of Southeastern Brazil, is described and illustrated. The new species is known only from the Serra do Caparaó massif, between the states of Minas Gerais and Espírito Santo, Southeastern Brazil. It shares morphological affinities with V. catharinensis and V. polystachya, the first restricted to Brazilian Subtropical Highland Grasslands, and the last restricted to Lowland Grasslands of Southern Brazil, Uruguay and Argentina. Besides the great geographical disjunction, the new species differs from the other two species by the pinnately lobed proximal leaves, by the lanceolate distal lobes and longer pseudopetioles in distal leaves, by differences in the size of the flowers, and by the rounded to ovate and broader achenes. Additionally, we provide the preliminary conservation status assessments using IUCN Red List categories and criteria, as well as an updated checklist and a key for Valeriana species from Southeastern Brazil.

Cheirostylis barbata, a new species Orchidaceae (Goodyerinae) from Yunnan, China

Phytotaxa ◽  
2020 ◽  
Vol 436 (3) ◽  
pp. 293-297
Author(s):  
XUN-FENG WU ◽  
QIANG LIU ◽  
JIN-LONG LI ◽  
ZONG-YING TANG ◽  
XIAO-KE XING
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Iucn Red List ◽  
Red List ◽  
Preliminary Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
Floral Bracts ◽  
A New Species

Cheirostylis barbata, a new species of Orchidaceae, is described and illustrated from Yunnan Province, China. It is morphological similar to C. griffthii, but it can be easily distinguished from the latter in having densely villous inflorescence, floral bracts 1.2–1.4 cm, significantly longer than ovary, lobes of lip deeply laciniate with 7–9 divisions, each lacinae randomly oriented, 6.0–7.5 mm long, hypochile containing 2 callus, each callus 4-toothed. A preliminary assessment of ex­tinction risk, according to the IUCN Red List Categories and Criteria, is also provided.

Allium shahinii: a new species of A. sect. Scorodon (Amaryllidaceae) from Turkey

Phytotaxa ◽  
2020 ◽  
Vol 461 (3) ◽  
pp. 195-203
Author(s):  
GÜLNUR EKŞİ ◽  
HAYRİ DUMAN
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Distribution Map ◽  
Mountain Ranges ◽  
Iucn Red List Categories ◽  
Deciduous Woodland ◽  
Red List Categories ◽  
A New Species

Allium shahinii, a new species of Allium sect. Scorodon, is described and illustrated from Erzincan Province, Eastern Turkey. It is a narrowly distributed geophyte growing on siliceous screes of warm exposure in mountain ranges of the nemoral and thermophilous deciduous woodland zone, showing close morphological relationships mainly with A. moschatum, A. stocksianum, A. spirophyllum, A. circumflexum but it is clearly differentiated due to perigon, outer tunic, indumentum, leaf and scape characteristics. In this study, diagnostic characters, description, taxonomic comments, photographs, distribution map, detailed illustration, the conservation status of A. shahinii and identification key are provided for A. shahinii and related taxa. According to IUCN Red List Categories and Criteria, A. shahinii is assessed here as a Critically Endangered (CR) species.

Validation of the name Mitreola crystallina (Loganiaceae), a new species endemic to southwestern China

Phytotaxa ◽  
2020 ◽  
Vol 471 (2) ◽  
pp. 139-144
Author(s):  
JIAN-RONG YOU ◽  
JUAN RAN ◽  
CHENG LIU ◽  
YU-MIN SHUI ◽  
JIA-XIANG LI ◽  
...  
Keyword(s):  
New Species ◽  
Southwest China ◽  
Conservation Status ◽  
Corolla Tube ◽  
Iucn Red List ◽  
Red List ◽  
Key To Species ◽  
Iucn Red List Categories ◽  
Data Deficient ◽  
A New Species

Mitreola crystallina was proposed in 2006, but not valid. Here, we validate the name by giving a complete description, diagnosis, and illustration as a new species of Loganiaceae. Morphologically, it is most similar to M. pedicellata, but can be distinguished by its stems erect (vs. creeping), corolla lobes blue (vs. white), and stamens inserted at or near base of the corolla tube (vs. middle to nearly mouth of corolla tube). It is endemic to the shady cliffs of limestone forests of Malipo County, southwest China. The conservation status was assessed as data deficient (DD) according to the IUCN Red List categories and criteria. And a key to species of Mitreola in China is provided.

scholarly journals Paraboea dolomitica (Gesneriaceae), a new species from Guizhou, China

PhytoKeys ◽  
2020 ◽  
Vol 153 ◽  
pp. 37-48
Author(s):  
Zhiyou Guo ◽  
Zhaowen Wu ◽  
Weibin Xu ◽  
Zhenyu Li ◽  
Xiaoguo Xiang
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Molecular Data ◽  
Iucn Red List ◽  
Red List ◽  
Leaf Position ◽  
Iucn Red List Categories ◽  
Data Support ◽  
Red List Categories ◽  
A New Species

Here we describe Paraboea dolomitica Z.Y. Li, X.G. Xiang & Z.Y. Guo, a new species of Gesneriaceae from Guizhou, China. Based on recent extensive observations, this new species is morphologically similar to Paraboea filipes (Hance) Burtt, in having obovate leaf blades, 1–4-flowered cymes and purplish corolla, but differs from that species by the combination of denticulate leathery leaves, sparsely brown haired peduncles, two woolly bracts, reniform anthers and two glabrous staminodes. Additionally, molecular data support this new species as a member of a clade that includes P. crassifolia, P. tetrabracteata, P. peltifolia, P. vetutina, P. dushanensis, P. dictyoneura, P xiangguiensis and P. guilinensis, but it is distinct from them in leaf position, inflorescence, penduncle, bract and capsule. The conservation status of this species is considered to be “Vulnerable” (VU) according to the IUCN Red List Categories and Criteria.

scholarly journals Hemiboea chanii (Gesneriaceae), a new species from limestone areas of northern Vietnam

PhytoKeys ◽  
2021 ◽  
Vol 183 ◽  
pp. 108-114
Author(s):  
Cuong Huu Nguyen ◽  
Ly Van Nguyen ◽  
Khang Sinh Nguyen ◽  
Alexander A. Egorov ◽  
Leonid V. Averyanov
Keyword(s):  
New Species ◽  
Flowering Time ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Critically Endangered ◽  
Northern Vietnam ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Hemiboea chanii, a new species of Gesneriaceae from Ha Giang Province, northern Vietnam, is here described and illustrated. It has many branched stems, diamond-shaped involucre with two cirrose opposite apices, a pink corolla, red spotted inside, and a flowering time in January-February. Among congeners with an externally hairy corolla, this new species is morphologically close to H. crystallina and H. sinovietnamica. Diagnostic discriminative characters in all mentioned species are discussed. The conservation status of this species is considered to be “Critically endangered” (CR) according to the IUCN Red List Categories and Criteria.

scholarly journals A new species of Parasopubia (Orobanchaceae) from the southern Western Ghats, India

2021 ◽  
Vol 78 (1) ◽  
pp. e106
Author(s):  
Divya Korappara Venugopal ◽  
Santhosh Nampy ◽  
Ayilliath Kuttiyeri Pradeep ◽  
Dani Francis ◽  
Vishnu Mohan ◽  
...  
Keyword(s):  
New Species ◽  
Western Ghats ◽  
National Park ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Iucn Red List Categories ◽  
Southern Western Ghats ◽  
A New Species

Parasopubia raghavendrae, a new species of Orobanchaceae is described from the southern Western Ghats of Kerala. It resembles P. delphinifolia and P. hofmannii var. hofmannii by its habit, shape, colour and hairiness of corolla lobes but differs by length of calyx tube, hairiness of staminal filaments and stomium, and shape and ornamentation of seeds. Parasopubia raghavendrae is hitherto known only from the type locality Mathikettan Shola National Park in Idukki district, Kerala. Detailed description of the new species along with colour photographs and comparison with its closely similar species are given. We also assessed provisionally the conservation status of the new species as Critically Endangered (CR) according to IUCN Red List Categories and Criteria.

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