Two new critically endangered species of Hippeastrum (Amaryllidaceae) from the Brazilian Cerrado

Phytotaxa ◽  
2018 ◽  
Vol 360 (2) ◽  
pp. 91
Author(s):  
ANTONIO CAMPOS-ROCHA ◽  
ALAN WILLIAM MEEROW ◽  
JULIE HENRIETTE ANTOINETTE DUTILH

Monographic work on the genus Hippeastrum in Brazil has revealed two new species endemic to the Cerrado biome, here described and illustrated. Hippeastrum lunaris is a species restricted to the region of Chapada dos Veadeiros; H. mauroi is so far found only in Chapada dos Guimarães. Detailed descriptions, illustrations and taxonomic comments on the conservation status of these species are provided, in addition to comparisons with morphologically similar species. An identification key to the species of Hippeastrum occurring in the Brazilian Cerrado is presented, accompanied by photographs of these species in their natural habitats.

Phytotaxa ◽  
2016 ◽  
Vol 258 (1) ◽  
pp. 83 ◽  
Author(s):  
Marcelo Trovó ◽  
Paulo Takeo Sano ◽  
Claudio Nicoletti De Fraga

We describe and illustrate Paepalanthus capixaba, a new species of Paepalanthus ser. Paepalanthus. The species is endemic to Espírito Santo state and restricted to a very distinct and endangered area, which comprises a mosaic of quartzitic sandy patches within a granitic argillaceous site. The indument of leaves, spathes, and scapes is crucial to recognize the taxon as a unique entity. The species is compared to Paepalanthus klotzschianus, the morphologically most similar species. An official conservation status of critically endangered species was assessed by the Centro Nacional de Conservação da Flora committee. Comments on the occurrence area and the morphological variation of the species, as well as a distribution map, photos, and illustrations are provided.


Phytotaxa ◽  
2018 ◽  
Vol 379 (2) ◽  
pp. 180
Author(s):  
FILIPE TORRES-LEITE ◽  
CARLA P. BRUNIERA ◽  
DANIELA C. ZAPPI ◽  
TATIANA T. CARRIJO

A new endemic and critically endangered species of Rudgea (Rubiaceae) from Southeastern Brazil is described and illustrated. Rudgea minutifolia Bruniera & Torres-Leite is distinguished by its small leaves, a character found in only a handful of species in this genus. The indumentum of the branches, leaves and stipules, low number of secondary veins, corniculate corolla lobes, and vinaceous to almost black mature fruits are also characteristic of this species. Discovered in a forest remnant within the Atlantic Rainforest domain in the south of Espírito Santo state, this species is found only in the municipality of Castelo, an area that has been recognized as prioritary for conservation. Besides the description, taxonomic comments, conservation status, images and illustrations are provided.


Phytotaxa ◽  
2016 ◽  
Vol 273 (4) ◽  
pp. 283 ◽  
Author(s):  
MEHMET FIRAT ◽  
KEMAL YILDIZ

A new perennial species, Silene miksensis (Silene sect. Pinifolia, Caryophyllaceae), is described and illustrated from eastern Anatolia, Turkey. A morphological comparison with the morphologically similar species is given as well as the ultrastructure of the seed and pollen grains. S. miksensis is assested as a Critically Endangered species according to IUCN [criterion B2ab (iii)].


2021 ◽  
Vol 46 (1) ◽  
pp. 70-74
Author(s):  
Alexandre Gibau de Lima ◽  
Juliana de Paula-Souza ◽  
Viviane Renata Scalon ◽  
Vinicius Castro Souza

Abstract—During a taxonomic treatment of Stryphnodendron (Leguminosae, Caesalpinioideae, mimosoid clade) for the Brazilian Flora 2020 Project, one new presumably critically endangered species from the Atlantic Forest domain was found, and is so far only known to western Espírito Santo state. Stryphnodendron flavotomentosum is described and illustrated, and information on its distribution, habitat, phenology, and preliminary conservation status is provided. Additionally, an identification key for the species of Stryphnodendron from the Brazilian rainforests is presented.


Phytotaxa ◽  
2021 ◽  
Vol 489 (2) ◽  
pp. 209-215
Author(s):  
EVERTON HILO DE SOUZA ◽  
LIDYANNE Y. S. AONA ◽  
FERNANDA V. D. SOUZA ◽  
ELTON M. C. LEME

The authors describe, discuss, and illustrate Lymania involucrata, a new ornamental species from the Atlantic Forest in the municipality of Igrapiúna, Bahia, Brazil, here considered a critically endangered species. The new species is morphologically related to L. brachycaulis but clearly diffe According to Sousa rs from it by the well-developed, involucral primary bracts and the distinct shape and size of inflorescence, primary branches, and flowers. A map of the distribution of the species and taxonomic comments are presented.


2021 ◽  
Vol 755 ◽  
pp. 136-148
Author(s):  
Phongphayboun Phonepaseuth ◽  
Phetlasy Souladeth ◽  
Keooudone Souvannakhoummane ◽  
Thyraphon Vongthavone ◽  
Shuichiro Tagane

Two new species of Sonerila Roxb. (Melastomataceae), S. erectifolia Phonep., Soulad. & Tagane sp. nov. from southern Laos, and S. souvannii Phonep. & Soulad. sp. nov. from central Laos, are described and illustrated. Comparisons with morphologically similar species are presented, along with ecological information and preliminary conservation status. A key to the species of Sonerila in Laos is also provided.


PhytoKeys ◽  
2020 ◽  
Vol 166 ◽  
pp. 97-103
Author(s):  
Jian-Fei Ye ◽  
Liang Chen ◽  
Zhang-Jian Shan ◽  
Xiao-Jie Li ◽  
Ce-Hong Li

Pternopetalum paucifoliolatum, a new species from Sixigou Scenic Area, Emeishan City, Sichuan Province, is proposed and described. Diagnostic morphological characters, full description, detailed illustrations, and a distribution map are provided. The new species is similar to P. porphyronotum in possessing the 1-pinnate leaves and the abaxially purple-red leaflets, but differs from the latter by shorter stature, fewer leaflets ((1–) 3–7) and rays (5–8), the leaflet margin white-ciliate. The new species, which is assessed as Critically Endangered (CR), was only found on limestone cliffs. We also provide a new key to the species of Pternopetalum.


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 411 (1) ◽  
pp. 39-48 ◽  
Author(s):  
VERÔNICA A. THODE ◽  
SÉRGIO AUGUSTO DE LORETO BORDIGNON

Two species of Glandularia from Rio Grande do Sul Brazilian state are described, G. rupestris V. Thode & Bordignon and G. sessilifolia V. Thode & Bordignon. Detailed morphological descriptions, geographical distribution, evaluation of their IUCN conservation status and photographs are presented. Comparison tables with morphologically similar species occurring in Rio Grande do Sul and an identification key to the species occurring in Brazil are also provided.


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