scholarly journals Una especie nueva de Furcraea (Agavaceae) de Colombia

2020 ◽  
Vol 8 (2) ◽  
pp. 499-508
Author(s):  
Diego Giraldo-Cañas

As a result of recent studies of South American Agavaceae, a new species of Furcraea is described. This species is endemic of a small area of the Andean Cordillera Oriental of Colombia and it belongs to Furcraea sect. Furcraea. The uses and popular names are documented for the new species. Based on IUCN criteria, the new species is categorized as “critically endangered” (CR). Thus, a total of five species of Furcraea are currently known in Colombia, F. abisaii Giraldo-Cañas, F. acaulis (Kunth) B. Ullrich, F. cabuya Trelease, F. foetida (L.) Haworth, and F. selloana K. Koch. A key for the Colombian species is included. The new species is more similar to F. hexapetala (Jacq.) Urb. and F. selloana K. Koch, and therefore, their features are given.

Phytotaxa ◽  
2019 ◽  
Vol 407 (1) ◽  
pp. 43-50
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
JULIO CESAR JARAMILLO

We describe here Begonia ciliatifolia, a new species from Santa Catarina, southern Brazil. We treat the species as a member of Begonia sect. Pritzelia, and discuss its differences to related species. Due the species small area of occurrence and the very specific habitat, the new species is assessed as critically endangered according to IUCN criteria. Additionally, we present a distribution map, field photographs and a key to the species of Begonia with peltate leaves and corniculate fruits of South Region of Brazil.


Phytotaxa ◽  
2016 ◽  
Vol 255 (3) ◽  
pp. 281 ◽  
Author(s):  
DIEGO TAVARES IGLESIAS ◽  
VALQUÍRIA FERREIRA DUTRA ◽  
RENATO GOLDENBERG

Behuria mestrealvarensis (Melastomataceae) from the state of Espírito Santo, Brazil, is described, illustrated and compared with B. capixaba, the species most similar to it. Behuria mestrealvarensis differs from B. capixaba by the glabrous petioles and hypanthia, by the solitary flowers or these in simple or compound triads up to 7 flowers, elliptic bracteoles almost the same size of the pedicel and hypanthium, sepals with eciliate margins and ovary apex with trichomes up to 0.5 mm. It occurs in a single locality, on an isolated, ca. 800m elev. inselberg. Due to its restricted occupancy area, fragmented landscape and poor habitat quality, this species must be considered as Critically Endangered according to IUCN criteria.


Phytotaxa ◽  
2017 ◽  
Vol 298 (1) ◽  
pp. 65 ◽  
Author(s):  
RODRIGO BERNAL ◽  
SAÚL E. HOYOS-GÓMEZ ◽  
FINN BORCHSENIUS

Aiphanes argos is a new species of palm segregated from Aiphanes parvifolia, which is now recognized to be a species complex. Aiphanes argos is one of the few rheophytic members of the palm family, and is endemic to a small area in the Samaná Norte River canyon in Antioquia, Colombia, where it is critically endangered because its populations are threatened by the damming of the river for a hydroelectric plant. The epiteth argos is the name of the conglomerate that intends to build the dam, and is given to the palm as a plea for the conservation of the Samaná Norte River canyon.


Phytotaxa ◽  
2019 ◽  
Vol 423 (2) ◽  
pp. 105-110
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
JULIO CESAR JARAMILLO ◽  
ELISANDRO RICARDO DRECHSLER-SANTOS

We describe here Begonia medeiroii, a narrow endemic species from the Atlantic Rainforest. The conservation status of this species was assessed as critically endangered according to IUCN criteria. This species resembles to B. catharinensis and B. hirtella in some characteristics, differing among other features due the presence of adventitious vegetative buds on the adaxial surface of the leaves.


Phytotaxa ◽  
2019 ◽  
Vol 399 (3) ◽  
pp. 195
Author(s):  
JOSÉ LUIS FERNÁNDEZ-ALONSO ◽  
PAULA ANDREA MORALES MORALES

Priogymnanthus colombianus, a new species and the first record of the South American genus of Oleaceae for Colombia is described and illustrated also we present a dichotomic key for the known species of genus. The new species differs from the three knowns for Priogymnanthus by: leaves oblong or oblong-elliptic, completely glabrous, petioles 10–17 (19) mm; inflorescences 15–20 (25) mm in length, with glabrous rachis, anthers about 3 mm length; fruits (10) 12–15 mm in diameter. P. colombianus occurs on premontane and dry forest in Colombia between 719 and 1213 m of elevation. Based on general threats to its ecosystems and few records found, we categorize the species as EN (endangered) following IUCN criteria.


Phytotaxa ◽  
2020 ◽  
Vol 440 (3) ◽  
pp. 232-238
Author(s):  
RAGHUVAR TIWARY ◽  
HARSH SINGH ◽  
DIBYENDU ADHIKARI ◽  
PREM PRAKASH SINGH ◽  
SAROJ KANTA BARIK

Aconitum haridasanii, a new species from Tawang, India, is described and illustrated. This new species differs from its allied species Aconitum spicatum in having a taller and flexuous stem, pale yellow to whitish flowers in a shorter few-flowered inflorescence, densely pubescent shorter pedicels, bract shorter than pedicel, shorter sepals, longer petals, and only 3 carpels. Threat assessment was undertaken for the species following IUCN criteria (IUCN 2017 version 13) and the species was classified as Critically Endangered.


Phytotaxa ◽  
2017 ◽  
Vol 307 (4) ◽  
pp. 278
Author(s):  
HÉCTOR M. M. HERNÁNDEZ ◽  
CARLOS GÓMEZ-HINOSTROSA

A new species of Calliandra (Leguminosae, Mimosoideae, tribe Ingeae) from a restricted locality of Campeche, Mexico is herein described and illustrated. The species appears to be closely related to C. molinae, a species from Honduras, El Salvador and Nicaragua, from which it may be distinguished by being allopatric, and by a more limited development of suberose bark in stems and branches, comparatively smaller leaflets, consistently glabrous leaflets and corollas, and by the scarcely villous pods. Calliandra mayana appears to be restricted to an extremely small seasonally flooded savannah surrounded by tropical deciduous forest and, based on IUCN criteria, it is provisionally considered Critically endangered.


PhytoKeys ◽  
2021 ◽  
Vol 177 ◽  
pp. 55-61
Author(s):  
Zi-Bing Xin ◽  
Wei-Chuen Chou ◽  
Stephen Maciejewski ◽  
Long-Fei Fu ◽  
Fang Wen

Primulina papillosa Z.B. Xin, W.C. Chou & F. Wen, a new species from limestone areas of Guangxi, China, is described and illustrated here. It morphologically resembles P. linearifolia (W.T. Wang) Yin Z. Wang and P. pseudolinearifolia W.B. Xu & K.F. Chung, but can be easily distinguished by some combined characters, especially its leaf blades densely papillose-hispid. We found only one population at the type locality with no more than 200 individuals, so that this new species is provisionally assessed as Critically Endangered (CR) using IUCN Criteria.


Phytotaxa ◽  
2017 ◽  
Vol 311 (2) ◽  
pp. 168
Author(s):  
ROBERT DOUGLAS STONE ◽  
NTOMBIPHUMILE PERCEVERENCE TENZA

Described and illustrated is Warneckea albiflora R.D. Stone & N.P. Tenza, another localized endemic of coastal dry forest near Quiterajo in Mozambique’s Cabo Delgado Province. In Flora Zambesiaca the new species would key to Memecylon sansibaricum Taub. [≡Warneckea sansibarica (Taub.) Jacq.-Fél.], but is distinguished by its elliptic-lanceolate, attenuate–acuminate leaves and white flowers borne on pedicels 3.5–4 mm long (versus leaves elliptic and rounded to shortly and obtusely acuminate, pedicels 6–15 mm long, and flowers pale blue to deep blue in Warneckea  sansibarica). Because of its evidently very limited occurrence as well as on-going anthropogenic threats, Warneckea albiflora is provisionally assessed as Critically Endangered (CR) B1ab(iii) according to IUCN criteria. A key is provided to the Mozambican species of Warneckea.


2018 ◽  
Vol 76 (1) ◽  
pp. 45-54 ◽  
Author(s):  
K. Souvannakhoummane ◽  
P. Souladeth ◽  
S. Tagane ◽  
C.-J. Yang ◽  
T. Yahara

Didymocarpus middletonii Souvann., Soulad. & Tagane, a new species of Gesneriaceae from Nam Kading National Protected Area, is described and illustrated. The new species is morphologically similar to Didymocarpus brevicalyx, D. formosus and D. puhoatensis but distinguished from the three by its fewer-flowered inflorescence, longer pedicel, and urceolate and multicellular eglandular hairy calyx. Based on the latest IUCN criteria, Didymocarpus middletonii is proposed to be Critically Endangered (CR). Our record of Didymocarpus represents a new genus record for the flora of Laos.


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