scholarly journals A new species of dragon’s blood Croton (Euphorbiaceae) from Serra dos Órgãos (Rio de Janeiro, Brazil)

PhytoKeys ◽  
2019 ◽  
Vol 126 ◽  
pp. 13-24 ◽  
Author(s):  
Sabrina Queiroz de Farias ◽  
Débora Medeiros ◽  
Ricarda Riina

Crotonrizzinii Farias & Riina, sp. nov. is a new species from Serra dos Órgãos National Park in the Atlantic Rain Forest domain (Rio de Janeiro state, Brazil). It is known from the municipalities of Guapimirim, Teresópolis and Petrópolis, where it grows in montane ombrophilous dense forest, between 500 and 1500 m elevation. This arborescent species belongs to CrotonsectionCyclostigma Griseb., a Neotropical lineage distributed in forest habitats from Mexico to northern Argentina. It is mainly characterised by its laciniate-glandular stipules, bracts with two inconspicuous glands (colleters) at the base and campanulate pistillate flowers with sepals covering the ovary. We describe and illustrate the new species, and compare it with close relatives occurring in the Atlantic Rain Forest. We also provide a distribution map, habitat information and suggestions for the assessment of its conservation status.

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.


2020 ◽  
Vol 60 ◽  
pp. e20206037
Author(s):  
José Roberto Pujol-Luz

Seven species of the genus Chiromyza Wiedemann are recorded in Brazil: C. brevicornis (Lindner, 1949), C. enderleini (Lindner, 1949), C. leptiformis (Macquart, 1838), C. ochracea Wiedemann, 1820, C. stylicornis (Enderlein, 1921), C. viridis Bezzi, 1922 and C. vittata Wiedemann, 1820. Herein I describe a new species, Chiromyza raccai sp. nov., based on 88 specimens (41 males, 47 females) from the Atlantic Rain Forest mountains of State of Rio de Janeiro, Brazil, in the city of Miguel Pereira. The new species is distinguished from the related species C. ochracea and C. vittata by the structure of male terminalia. Chiromyza raccai sp. nov. has the distal region of the phallus rounded with two conspicuous apical setae, C. ochracea has the distal surface of the phallus wide and flatness, and C. vittata has the distal surface of the phallus rounded with outer margin rugose.


Phytotaxa ◽  
2020 ◽  
Vol 446 (1) ◽  
pp. 72-76
Author(s):  
LUDOVIC JEAN CHARLES KOLLMANN

Begonia margaretiana, a new species of Begonia sect. Pritzelia from Rio de Janeiro state, Brazil is described. Begonia margaretiana is morphologically similar to Begonia paulensis, with which it is compared. The new species grow in hygrophilous Atlantic Forest in the south of Rio de Janeiro state, Brazil. Description, comparisons with a morphologically similar species, etymology, taxonomic comments, illustrations, a map, and the conservation status of the new species are provided.


Phytotaxa ◽  
2018 ◽  
Vol 343 (2) ◽  
pp. 160
Author(s):  
FIORELLA F. MAZINE ◽  
MARCOS SOBRAL ◽  
KARINNE SAMPAIO VALDEMARIN

A new species of Eugenia from Atlantic forest of Rio de Janeiro State is described, illustrated, and discussed. Eugenia circumdata is characterized by its inflorescences with tomentose, brown-yellowish indumentum, bracteoles orbiculate or obovate, concave, surrounding the flower bud, and deciduous at anthesis. Eugenia circumdata is most similar to Eugenia myrobalana, from which it differs mainly by its smaller leaf blades, axillary inflorescences, and shorter pedicels. Moreover, the species described here is known only from collections in Reserva Biológica União, in the municipality of Rio das Ostras. Data on its conservation status are presented.


Zootaxa ◽  
2010 ◽  
Vol 2632 (1) ◽  
pp. 46 ◽  
Author(s):  
ANA MARIA PAULINO TELLES DE CARVALHO-E-SILVA ◽  
MARCELLE MANTOANELLI MONGIN ◽  
EUGENIO IZECKSOHN ◽  
SERGIO POTSCH DE CARVALHO-E-SILVA

A new species of Dendrophryniscus is described from the Atlantic Rain Forest, in the Serra dos Órgãos, State of Rio de Janeiro, Brazil, at 1050 m a.s.l. The description was based on three female specimens, with a mean snout-vent length of 23.0 mm. The new species, Dendrophryniscus organensis, differs from the eight other known species in having a characteristic dorsal color pattern, with the tips of the fingers and toes, the snout, and the sub-rostral crest reddish-orange, rostral angle accentuated, end of the snout triangular in dorsal view, and the relation of tibia and snout-vent length equals to 0.4. The large size of the oocytes suggest that the new species reproduces in bromeliads, which places the new species in the D. brevipollicatus group together with D. berthalutzae, D. carvalhoi, D. krausae, and D. stawiarskyi.


2001 ◽  
Vol 22 (2) ◽  
pp. 179-185 ◽  
Author(s):  
José Pombal

AbstractA new species of Brachycephalus is described from Serra da Bocaina, State of Rio de Janeiro, Brazil. The new species is characterized by having, in preservative, body uniformly pale cream, dermal ossification of the vertebrae composed of a bulge forming a row, and absence of ossified warts on the body.


2020 ◽  
Vol 54 (29-30) ◽  
pp. 1947-1956
Author(s):  
Ludson Neves de Ázara ◽  
Miguel Medrano ◽  
Adriano Brilhante Kury

Zootaxa ◽  
2003 ◽  
Vol 285 (1) ◽  
pp. 1 ◽  
Author(s):  
EDSON H.L. PEREIRA ◽  
ROBERTO E. REIS ◽  
PABLO F.M. SOUZA ◽  
HENRIQUE LAZZAROTTO

Hemipsilichthys nimius, new species, is described from the upper Perequê-Açu River in Parati, in the southern coast of Rio de Janeiro State, southeastern Brazil. The new species is distinguished from the remaining 18 Hemipsilichthys species by modally having eight branched rays in the dorsal fin (vs. seven branched rays), by possessing a posteriorly expanded dorsal-fin membrane connecting the last dorsal-fin ray to the dorsum and, except from H. gobio and H. papillatus, by having teeth cusps equal in size (vs. small lateral cusp or unicuspid teeth in both dentary and premaxilla). From H. gobio and H. papillatus it is further distinguished by the larger orbital diameter and by its V-shaped dorsal-fin spinelet. Hemipsilichthys nimius shares with H. gobio and H. papillatus several characters that might be indicative of close relationships. These putative phylogenetic relationships are discussed.


Zootaxa ◽  
2007 ◽  
Vol 1393 (1) ◽  
pp. 19-26 ◽  
Author(s):  
ELIZA MARIA XAVIER FREIRE ◽  
ULISSES CARAMASCHI ◽  
ANTÔNIO JORGE SUZART ARGÔLO

A new species of the genus Liotyphlops, known from three localities in the states of Alagoas and Bahia, in the Atlantic Rain Forest of Northeastern Brazil, is described. Liotyphlops trefauti sp. nov. is distinguished from all other species of the genus by the following combination of characters: four scales contacting the posterior edge of prefrontal; one scale contacting the posterior edge of nasal, between the second supralabial and the frontal; five scales in the first vertical row of lateral head scales; 22-22-22 scales around body; 520–543 dorsal scales; 499–532 ventral scales; absence of eye spot; and dorsal and ventral color bright yellowish-brown to reddish-brown.


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