A New Species of Adesmia (Leguminosae, Papilionoideae, Dalbergieae) from Southern Brazil, with Notes on Leaf Anatomy

Phytotaxa ◽  
2021 ◽  
Vol 521 (1) ◽  
pp. 48-56
Author(s):  
THIAGO COBRA E MONTEIRO ◽  
JOÃO RICARDO VIEIRA IGANCI ◽  
DIANA PACHECO SEIXAS ◽  
TATIANE MARIA RODRIGUES ◽  
ANA PAULA FORTUNA-PEREZ

A revisional taxonomic study of Adesmia subg. Adesmia ser. Bicolores has unveiled a new species from southern Brazil. Adesmia miottoae is described and illustrated here. Its geographic distribution, phenology, conservation status and morphological similarities with its closest relatives, Adesmia punctata and A. incana, are presented. The species is distinguished by glandular trichomes covering all the aerial parts of the plant, except the corolla. These trichomes are shorter than those of Adesmia punctata. Additionally, a detailed anatomical description of the leaflet blade is provided.

Author(s):  
Diego Nunes da Silva ◽  
Bruna Nunes de Luna ◽  
Talvanis Lorenzetti Freire ◽  
Elsie Franklin Guimar&#227es ◽  
Paulo José Fernandes Guimarães

Comolia abaetensis, an endemic new species from the Abaeté and Itapuã sand dunes, Bahia, Brazil, is described and illustrated. Additionally, field images and a geographic distribution map of the new species are provided, together with morphological and leaf anatomy comparisons among the most similar congeners, and a dichotomous key to the species that occur in Brazil. Comolia abaetensis is morphologically similar to C. ovalifolia, but differs from the latter by the following combination of characteristics: glabrous (rarely with sparse trichomes)internodes and hirsute nodes, glabrous leaf blades or rarely with sparse eglandular trichomes, abaxial surface predominantly red with green nuances, glabrous pedicels, cupuliform hypanthium, and filaments of the antesepalous stamens that are 5–6 mm long. Specimens of C. abaetensis have been confused with and/or tentatively determined as C. berberifolia. However, these two species are readily distinguished by the size of the leaves, the length of the trichomes and filaments, and the color of the abaxial foliar surfaces. Comparisons between the leaf anatomy ofC. abaetensis and C. ovalifolia are provided and the occurrence of emergences and hydathodes are here reported for the genus for the first time. Finally, we informally recommend a conservation status of Critically Endangered [CR B1ab (iv) + 2ab (iv)] for C. abaetensis.


Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 179-200
Author(s):  
CELLINI CASTRO DE OLIVEIRA ◽  
ANDRÉ LAURÊNIO DE MELO ◽  
MARCOS JOSÉ DA SILVA

A synopsis of the genus Cnidoscolus is presented for the midwestern region of Brazil, which resulted from the analysis of about 1,200 specimens from 62 national and foreign herbaria, including type collections. Observations of populations in field were also made. Nine species are recognized, one of which, C. mcvaughii, is new to science. It is described and illustrated, and comments about its geographic distribution, morphological relationships, systematic position, phenology, and conservation status are provided, as well as images and a map. The other species are contrasted by a dichotomous key. Also, distributional information, maps, conservation evaluations, images and morphologically diagnoses are included. Eight synonymizations, one lectotypification, a neotypifcation, and the re-establishment of C. neglectus are proposed.


Zootaxa ◽  
2005 ◽  
Vol 963 (1) ◽  
pp. 1 ◽  
Author(s):  
MAURÍCIO CAMPOS ◽  
BEATRIZ MOTHES ◽  
RAFAEL ECKERT ◽  
ROB W.M. VAN SOEST

This work deals with haplosclerid sponges off the coast of Maranhão State, northeastern coast of Brazilian shelf (southwestern Atlantic). A new species is described, Haliclona (Halichoclona) lernerae. Four species are recorded for the first time for the Brazilian coast: Amphimedon caribica (Pulitzer-Finali, 1986); Niphates lutea Lehnert & Van Soest, 1999; Neopetrosia subtriangularis (Duchassaing, 1850) and Petrosia (Petrosia) weinbergi Van Soest, 1980. Three species were recollected from the southwestern Atlantic and have their geographic distribution extended on the Brazilian coast: Callyspongia (Cladochalina) vaginalis (Duchassaing & Michelotti, 1864), Oceanapia bartschi (De Laubenfels, 1934) and Xestospongia muta (Schmidt, 1870). Two species were collected for the first time from the Maranhão State Coast: Niphates erecta Duchassaing & Michelotti, 1864 and Neopetrosia proxima (Duchassaing & Michelotti, 1864). A taxonomic study of those samples is given, including description, illustrations and geographic distribution.


Phytotaxa ◽  
2021 ◽  
Vol 505 (2) ◽  
pp. 121-138
Author(s):  
THAINARA POLICARPO MENDES ◽  
MARCELO FRAGOMENI SIMON ◽  
ANA PAULA FORTUNA PEREZ ◽  
Marcos José da Silva

Taxonomic studies of Mimosa subser. Polycephalae revealed a new species and indicated the need for taxonomic and nomenclatural adjustments in the group. Mimosa pseudoracemosa is described and illustrated as a new species from Goiás State in central-western Brazil. We discuss its geographic distribution, environmental preferences, phenology and conservation status and compare it with the morphologically similar M. pseudoradula and M. flavocaesia. A new status for M. pseudoradula var. detonsa and a new name are proposed (= M. detonsa), including M. pseudoradula var. anapolitana and M. pseudoradula var. crystallites as its synonyms, as well an updated circumscription for M. pseudoradula without the admission of varieties. We also present descriptions, images, maps, comments on their distributions and morphological relationships, flowering and fruiting periods, and conservation statuses. In addition to the morphological and geographic discontinuities of the aforementioned taxa, their trichome micromorphology supported the establishment of the new species, as well as the taxonomic decisions involving M. pseudoradula.


2021 ◽  
Vol 46 (4) ◽  
pp. 1011-1015
Author(s):  
Priscila Orlandini ◽  
Inês Cordeiro ◽  
Jone Clebson Ribeiro Mendes ◽  
Antônio Campos-Rocha ◽  
Vinicius Castro Souza

Abstract— A new species of Phyllanthus with phylloclades endemic to the State of Bahia is described here. Phyllanthus dracaenoides can be recognized for its peculiar habit that resembles a species of Dracaena, a very unusual height of up to 7 m, the plagiotropic phylloclades spirally arranged, and its vermiform cincinni. Notes on its habitat, taxonomic affinity, conservation status, geographic distribution, illustrations, and photographs are provided.


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.


Zootaxa ◽  
2003 ◽  
Vol 363 (1) ◽  
pp. 1 ◽  
Author(s):  
ADRIANO B. KURY

Pherania giupponii sp. nov. is herein described from a coastal island in Santa Catarina state, southern Brazil. The genus Pherania Strand, 1942, was hitherto monotypic and the type species, Pherania pygmaea (Sørensen, 1932), is known from the nearby mainland. A new diagnosis is given to Pherania and the geographic distribution of the two species is illustrated on a map.


Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 210
Author(s):  
MARCOS JOSÉ DA SILVA ◽  
ALESSANDRO OLIVEIRA DE SOUZA ◽  
ALEXANDRE ANTÔNIO ALONSO ◽  
HANS-JOACHIM ESSER

Manihot montana, a new species of wild cassava, is described and illustrated based on material from the Brazilian savannas. We compared its macromorphology and leaf anatomy to M. paviifolia, the most morphologically similar species. In addition, we provide images of the new species, details on its distribution, conservation status assessment, phenology and comments on its ecology, morphological relationships and systematic position.


Phytotaxa ◽  
2015 ◽  
Vol 202 (2) ◽  
pp. 143 ◽  
Author(s):  
Henrique Mallmann Büneker ◽  
Rodrigo Corrêa Pontes ◽  
Leopoldo Witeck-Neto ◽  
Kelen Pureza Soares

Tillandsia leucopetala H. Büneker, R. Pontes & L. Witeck is an endemic saxicolous new species from Rio Grande do Sul, southern Brazil. It is described, illustrated and data about its geographic distribution and ecology are provided.


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.


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