Synopsis of Cnidoscolus (Euphorbiaceae) in midwestern Brazil, including taxonomic updates, a new species, and a reestablishment of C. neglectus

Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 179-200
Author(s):  
CELLINI CASTRO DE OLIVEIRA ◽  
ANDRÉ LAURÊNIO DE MELO ◽  
MARCOS JOSÉ DA SILVA
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Systematic Position ◽  
The Other ◽  
Dichotomous Key ◽  
Distributional Information ◽  
A New Species

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.

A new Critically Endangered species of stone breaker (Phyllanthus, Phyllanthaceae) from Central Brazil, with notes on its leaf and stem anatomy

Phytotaxa ◽  
2022 ◽  
Vol 530 (1) ◽  
pp. 53-64
Author(s):  
MARCOS JOSÉ DA SILVA ◽  
ALEXANDRE ANTÔNIO ALONSO ◽  
IGOR SOARES DOS SANTOS
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Systematic Position ◽  
The Other ◽  
Similar Species ◽  
Stem Anatomy ◽  
Environmental Preferences ◽  
Central Brazil ◽  
Critically Endangered Species ◽  
A New Species

A new species from the state of Goiás, Brazil, Phyllanthus pterocaulis, is described and illustrated, with comments on its geographic distribution and environmental preferences, phenology, morphological relationships, and systematic position. It is morphologically allied with Phyllanthus avicularis, P. heliotropus, and P. hyssopifolioides, but differs from all of them by a set of characters related to cymules sex, presence and types of trichomes on leaves and stems, leaf consistency, numbers of sepals in flower of both sexes, integrity of stamens, capsules and seeds. Additionally, we provide images of the new species in the field, conservation status, mapped distribution, the anatomical description of its stem and leaves, and a key to differentiate it from the other similar species belonging to Phyllanthus sect. Loxopodium occurring in Brazil. The new species is one of the few in the genus that occurs in shaded environments in seasonal dry forests within the Cerrado biome.

A New Species of Comolia (Melastomataceae, Marcetieae) from the Sand Dunes of Bahia, Brazil, with Notes on Leaf Anatomy

2021 ◽  
Author(s):  
Diego Nunes da Silva ◽  
Bruna Nunes de Luna ◽  
Talvanis Lorenzetti Freire ◽  
Elsie Franklin Guimar&#227es ◽  
Paulo José Fernandes Guimarães
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Leaf Anatomy ◽  
Sand Dunes ◽  
Conservation Status ◽  
Distribution Map ◽  
Abaxial Surface ◽  
Dichotomous Key ◽  
First Time ◽  
A New Species

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.

Novelties in Mimosa sect. Mimosa ser. Mimosa subser. Polycephalae: a new species, new status, and new synonyms

Phytotaxa ◽  
2021 ◽  
Vol 505 (2) ◽  
pp. 121-138
Author(s):  
THAINARA POLICARPO MENDES ◽  
MARCELO FRAGOMENI SIMON ◽  
ANA PAULA FORTUNA PEREZ ◽  
Marcos José da Silva
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Environmental Preferences ◽  
New Name ◽  
New Synonyms ◽  
Taxonomic Studies ◽  
A New Species

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.

A New Species of Phyllocladiferous Phyllanthus (Phyllanthaceae) from the Atlantic Rain Forest

2021 ◽  
Vol 46 (4) ◽  
pp. 1011-1015
Author(s):  
Priscila Orlandini ◽  
Inês Cordeiro ◽  
Jone Clebson Ribeiro Mendes ◽  
Antônio Campos-Rocha ◽  
Vinicius Castro Souza
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Rain Forest ◽  
Conservation Status ◽  
The State ◽  
Atlantic Rain Forest ◽  
Taxonomic Affinity ◽  
A New Species

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.

Manihot montana, a new species of Manihot sect. Graciles (Euphorbiaceae) from the Brazilian savannas

Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 210
Author(s):  
MARCOS JOSÉ DA SILVA ◽  
ALESSANDRO OLIVEIRA DE SOUZA ◽  
ALEXANDRE ANTÔNIO ALONSO ◽  
HANS-JOACHIM ESSER
Keyword(s):  
New Species ◽  
Leaf Anatomy ◽  
Conservation Status ◽  
Systematic Position ◽  
Similar Species ◽  
Status Assessment ◽  
A New Species

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.

Uncinia auceps (Cyperaceae): a new endemic hooked sedge for the Chatham Islands

Phytotaxa ◽  
2013 ◽  
Vol 104 (1) ◽  
pp. 12 ◽  
Author(s):  
P.J. De LANGE
Keyword(s):  
New Species ◽  
New Zealand ◽  
Conservation Status ◽  
The Other ◽  
Distribution Map ◽  
A New Species ◽  
Forest Habitats

Uncinia auceps is described as a new species from Chatham Islands, New Zealand. The new species is segregated from and compared with U. uncinata, a species endemic to the other New Zealand islands. Uncinia auceps occurs mainly in forest habitats on most of the main islands of the Chatham Island archipelago. In addition, a distribution map and the conservation status of the new species are presented.

scholarly journals A new species of the freshwater crab genus Potamonemus Cumberlidge & Clark, 1992 (Crustacea: Potamonautidae) endemic to the forested highlands of southwest Cameroon, Central Africa

2020 ◽  
Author(s):  
Pierre A. Mvogo Ndongo ◽  
Thomas von Rintelen ◽  
Neil Cumberlidge
Keyword(s):  
New Species ◽  
National Park ◽  
Conservation Status ◽  
Central Africa ◽  
The Other ◽  
Tropical Rainforests ◽  
12S Rrna ◽  
Freshwater Crab ◽  
Distinct Lineage ◽  
A New Species

A new species of freshwater crab of the genus Potamonemus Cumberlidge & Clark, 1992, is described from Mount Manengouba Reserve and the Bakossi National Park in the tropical rainforests of southwestern Cameroon, Central Africa. Potamonemus man n. sp. is recognized by characters of the carapace and chelipeds. In addition, a phylogenetic analysis based on partial sequences of three mitochondrial DNA genes (COI, 12S rRNA, and 16S rRNA) that included representatives of all other freshwater crab genera found in Cameroon recovered each of the new species as a distinct lineage. A diagnosis and illustrations of the new species are provided, and it is compared to the other species in this genus. Brief notes are provided on the ecology of the new species and the two other species of Potamonemus. An identification key to the species of Potamonemus is provided and its conservation status discussed.

scholarly journals A New Species of the Extinct Ant Genus Electromyrmex (Hymenoptera, Formicidae)

2018 ◽  
Vol 52 (5) ◽  
pp. 361-366 ◽  
Author(s):  
A. G. Radchenko ◽  
G. M. Dlussky
Keyword(s):  
New Species ◽  
Systematic Position ◽  
Morphological Features ◽  
The Other ◽  
Taxonomic Position ◽  
The Baltic ◽  
Apical Tooth ◽  
Single Worker ◽  
A New Species ◽  
Shed Light

Abstract Electromyrmex wheeleri sp. n., which belongs to the extinct ant genus is described based on males from the Baltic and Bitterfeld Ambers (Priabonian stage, 33.9-37.2 Ma). Until now only one species of this specialized genus based on a single worker was described and taxonomic position of this genus in the subfamily Myrmicinae remains uncertain. By the forewing venation, males of E. wheeleri resemble Aphaenogaster Mayr, Messor Mayr and Pheidole Westwood, but diff ers from the fi rst two genera by the presence of Mayrian furrows, and from the latter one - by the antennal structure. On the other hand, males of this genus have a set of specialized characters, e. g., subcylindrical petiole, mandibles with an only single apical tooth, quite peculiar shape of mesosoma, etc. and the morphological features of the males of E. wheeleri also do not shed light on its systematic position.

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
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Leaf Anatomy ◽  
Conservation Status ◽  
Glandular Trichomes ◽  
Taxonomic Study ◽  
Southern Brazil ◽  
Aerial Parts ◽  
A New Species

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.

Solanum confertiflorum (Solanaceae), a New Species from Brazil for the Cyphomandra Clade

2020 ◽  
Vol 45 (4) ◽  
pp. 931-936
Author(s):  
Joao Renato Stehmann ◽  
Daniela Melo Garcia de Oliveira ◽  
Francisco Romário Tabosa
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Brazilian Species ◽  
Caatinga Biome ◽  
A New Species ◽  
Seasonal Forests

Abstract—Solanum confertiflorum (Solanaceae), a new species for the Cyphomandra clade, is described and illustrated. The species is endemic to Bahia state, in Brazil, restricted to few localities, inhabiting seasonal forests and outcrops in the Caatinga biome. It is morphologically related to S. luridifuscescens, sharing the papillose anthers without swollen connectives, but distinguished by the forked cymes with flowers congested at the apex, swollen calyx with shorter lobes, as well as shorter, sessile stamens. The morphology, geographic distribution, ecology, and conservation status are discussed and a key for the Brazilian species without swollen connectives belonging to the Cyphomandra clade is presented.

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