Novelties in Chamaecrista (Fabaceae, Caesalpinioideae) from the Brazilian Cerrado

Phytotaxa ◽  
2015 ◽  
Vol 239 (2) ◽  
pp. 143 ◽  
Author(s):  
Alessandro Oliveira Souza ◽  
MARCOS JOSÉ DA SILVA ◽  
ALEXANDRE ANTÔNIO ALONSO

Chamaecrista irwiniana, a new species of Chamaecrista sect. Absus subsect. Absus ser. Rigidulae, is here described and illustrated. Its morphological affinities, geographical distribution, ecology, conservation status, and information about leaf anatomy are also presented. Additionally, a complete description, distribution, and the first illustration of C. nummulariifolia, an endemic species to the states of Goiás and Minas Gerais, classified as vulnerable according to the IUCN guidelines, are provided.

Phytotaxa ◽  
2015 ◽  
Vol 213 (3) ◽  
pp. 253 ◽  
Author(s):  
Alessandro Oliveira Souza ◽  
MARCOS JOSÉ DA SILVA

During the taxonomic treatment of Chamaecrista sect. Absus ser. Rigidulae as the object of the master’s dissertation of the first author, the analyses of our own collections and specimens from several Brazilian herbaria led us to establish a new species, Chamaecrista sparsifolia, and propose a new status and a new combination for Chamaecrista chaetostegia var. obolaria. The geographical distribution, phenology, conservation status, as well as images and illustrations of both taxa are given.


Phytotaxa ◽  
2017 ◽  
Vol 312 (2) ◽  
pp. 237 ◽  
Author(s):  
LUCAS SÁ BARRETO JORDÃO ◽  
MARLI PIRES MORIM ◽  
JOSÉ FERNANDO A. BAUMGRATZ ◽  
MARCELO FRAGOMENI SIMON

Mimosa is a very large genus with more than 540 species, which are distributed mainly in the Neotropics and are especially diverse in the Cerrado, where the genus shows high rates of endemism.         The Serra do Cabral mountain range, which is part of the Espinhaço mountain range, contains representative remnants of the Cerrado and is a very important area for the genus, where at least 20 taxa of Mimosa are reported. Unfortunately, it is a threatened and over-exploited region. Here we describe a new narrow endemic species from the Serra do Cabral, Mimosa osmarii, that shows affinities with M. paucifolia var. scoparia, a sympatric taxon. The conservation status of M. osmarii was assessed as vulnerable.


Phytotaxa ◽  
2021 ◽  
Vol 525 (3) ◽  
pp. 196-204
Author(s):  
BRUNO PAIXÃO-SOUZA ◽  
NÍLBER GONÇALVES DA SILVA ◽  
ALESSANDRA RIBEIRO GUIMARÃES ◽  
RUY JOSÉ VÁLKA ALVES ◽  
ANDREA FERREIRA DA COSTA

A new species of rupicolous Tillandsia from the Mantiqueira mountain range in Southern Minas Gerais State is described based on morphology and leaf anatomy. This new taxon is close to T. nuptialis. The known distribution and conservation status of this new species are discussed.


Phytotaxa ◽  
2014 ◽  
Vol 188 (3) ◽  
pp. 169 ◽  
Author(s):  
Elidio A.E. Guarçoni ◽  
ARISTÉA ALVES AZEVEDO ◽  
ANDREA FERREIRA DA COSTA

Dyckia sulcata is described and illustrated here as a new species from Minas Gerais State, Brazil. Information on its phenology, ecology, distribution, and conservation status is provided. The species is morphologically compared with D. brachyphylla and D. saxatilis, which are the species considered most similar. Illustrations and descriptions of leaf anatomy are also provided.


2021 ◽  
Vol 46 (1) ◽  
pp. 109-121
Author(s):  
Rosana Romero ◽  
Ana Paula Souza Caetano ◽  
Karine Fonseca dos Santos ◽  
Ana Flávia Alves Versiane

Abstract—Microlicia gertii, M. purpurata, and M. trianae from Serra do Cabral, Serra da Canastra, and Serra do Bota, Minas Gerais, Brazil, respectively, are presented here. Comprehensive descriptions of the new species, including detailed illustrations and comparisons with their relatives are provided. The statements of geographical distribution, habitat, and informal IUCN conservation status for each species are indicated. Additionally, the leaf anatomy of three new species is described.


Phytotaxa ◽  
2021 ◽  
Vol 510 (2) ◽  
Author(s):  
DIEGO RAFAEL GONZAGA ◽  
EDUARDO PINHEIRO FERNANDEZ ◽  
LUCAS MORAES ◽  
LUIZ MENINI NETO ◽  
ARIANE LUNA PEIXOTO

Arthrocereus grandiflorus sp. nov. is described on the basis of field surveys, macro- and micromorphological (pollen grains) data, and analysis of literature. The new species is endemic to the Brazilian Cerrado and its two subpopulations were found in the municipality of Diamantina, Minas Gerais State. Comments on its morphological affinities with related taxa, geographical distribution, phenology, habitat, conservation status, and original photographs of living specimens are provided. In terms of conservation, it was assessed according to IUCN criteria as Critically Endangered (CR).


Phytotaxa ◽  
2016 ◽  
Vol 286 (1) ◽  
pp. 13
Author(s):  
VANESSA ROJAS-PIÑA ◽  
LEONARDO O. ALVARADO-CÁRDENAS

Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the pedicel below the flower. With this new addition, the total number of endemic species of Beaucarnea for Mexico increases to 10, making this country the greatest center of diversification and endemism for the genus. We also provide a distribution map and a conservation status recommendation for the new species, as well as a key to the Beaucarnea species of southern central Mexico.


2021 ◽  
Vol 50 (2) ◽  
pp. 319-326
Author(s):  
Süleyman Doğu ◽  
Yavuz Bağci

Stachys ahmet-savranii Doğu & Bağcı sp. nov. (Lamiaceae) from the Niğde (C5 Niğde, Turkey) is described and illustrated. It exhibits general features of the section Infrarosularis. It is closely related to Stachys citrina Boiss. & Heldr. but differs by its slender and unbranched stem; leaves structure; floral leaves equalling or longer than verticillasters; verticillester with 8 - 12 flowered and corolla 10 - 18 mm; Bracteoles reaching nearly middle of calyx tube. Diagnostic morphological characters are discussed. The geographical distribution of the new species is mapped. Notes are also presented on its ecology, biogeography and conservation status. Bangladesh J. Bot. 50(2): 319-326, 2021 (June)


Phytotaxa ◽  
2021 ◽  
Vol 502 (2) ◽  
pp. 149-159
Author(s):  
HASAN YILDIRIM ◽  
MEHTAP TEKŞEN

In this study, Fritillaria arsusiana (Liliaceae) is described and illustrated as a new species from Hatay province in southern Anatolia, Turkey. It is related to F. amana and F. hermonis by habitus features and broadly campanulate flowers, but differs mainly by its bulb shape and size, smaller leaf and flower features, and flower colour. It has also been morphologically compared with F. wendelboi, F. pinardii, and F. latakiensis. The detailed description, diagnostic characters, original photographs, geographical distribution, habitat and phenology, etymology, conservation status, and identification key of the new and the related species are presented in this study. IUCN conservation status of F. arsusiana is suggested as Critically Endangered (CR).


Phytotaxa ◽  
2021 ◽  
Vol 511 (3) ◽  
Author(s):  
MEHMET FIRAT

A new species, Stachys semsurensis (sect. Infrarosularis), is described and illustrated from Adıyaman province, Turkey. From the morphological point of view, it appears to be similar to Stachys cataonica, but it differs in several morphological features including densely covered with short stalked to subsessile glandular hairs in flowering stems, verticillasters congested into ± globose head, calyx teeth lanceolate-subulate, corolla white, tube exserted and nutlets obovoid, greyish-brown, reticulate. A comprehensive description of the new species is provided, including detailed photographs, geographical distribution map, habitat structure and ecology, vernacular name and IUCN conservation status.


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