A new species of Eugenia (Myrtaceae) from Rio de Janeiro State, Brazil

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.

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 ◽  
2020 ◽  
Vol 452 (2) ◽  
pp. 165-172
Author(s):  
THIAGO FERNANDES ◽  
DUANE FERNANDES LIMA ◽  
JOÃO MARCELO ALVARENGA BRAGA

Myrcia adulterina, a new species from the Brazilian Atlantic Forest, is here described, illustrated and compared with morphologically related species. Additionally, its distribution map and a preliminary conservation status are presented. The new species is here inferred as belonging to Myrcia sect. Reticulosae due its leaves with raised venation, staminal ring densely pilose, hypanthium prolonged in a tube with glabrous inner walls and 3-locular ovaries. Within this section, the species is morphologically related to Myrcia pubipetala, from which it can be distinguished through the laxly reticulate leaf venation and thyrsoid inflorescences with all axes strongly flattened and striated when dry. Myrcia adulterina was misidentified during at least 15 years in herbaria under the name Marlierea tomentosa (currently synonym of Myrcia strigipes, a species belonging to Myrcia sect. Aulomyrcia), which is also morphologically similar. A brief discussion clarifying the morphological differences between these species is also presented.


2001 ◽  
Vol 61 (4) ◽  
pp. 685-688 ◽  
Author(s):  
F. MARTINS-HATANO ◽  
D. GETTINGER ◽  
H. G. BERGALLO

Androlaelaps marmosops, a new species of laelapid mite, is described from the pelage of the mouse opossum, Marmosops incanus (Lund, 1840) (Mammalia: Didelphidae), in two areas of Atlantic Forest of Rio de Janeiro State. Measurements and illustrations are included for females only.


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.


2020 ◽  
Vol 28 (4) ◽  
pp. 275-280
Author(s):  
Dayvid Rodrigues Couto ◽  
Vitor da Cunha Manhães ◽  
Andrea Ferreira da Costa

Stigmatodon Leme, G. K. Br. & Barfuss is an exclusively Brazilian genus of Bromeliaceae that occurs mainly on large vertical granite surfaces of inselbergs in the Atlantic Forest of southeastern Brazil. A new species found in cliff ecosystems on inselbergs in the municipality of Rio de Janeiro is described and illustrated. Data are provided on its habitat, ecology, and geographical distribution, together with an evaluation of its conservation status according to IUCN criteria.


Phytotaxa ◽  
2014 ◽  
Vol 188 (3) ◽  
pp. 162
Author(s):  
Livia Godinho Temponi ◽  
Marcus A. Nadruz Coelho

Two new species of Anthurium endemic to Rio de Janeiro, southeastern Brazil, are described. Anthurium cronembergerae and A. sakuraguianum occur in humid areas in the Atlantic Forest. Descriptions and illustrations are provided, together with commentary on geographic distribution, ecology, flowering and fruiting phenology and conservation status. Comparisons are made with other similar Brazilian species of Anthurium section Urospadix, to which the two new species are assigned.


2021 ◽  
Vol 61 ◽  
pp. e20216144
Author(s):  
José Heitzmann Fontenelle ◽  
Luiz Ricardo Lopes de Simone ◽  
Daniel Caracanhas Cavallari

Megalobulimus dryades sp. nov. is described from the Atlantic Forest in the Vale do Ribeira region, in the states of Paraná and São Paulo, S-SE Brazil, based on morphology. Representatives of the new species with white peristome and glossy periostracum have been misidentified as Megalobulimus gummatus (Hidalgo, 1870) since the 19th Century. The true M. gummatus is revised and redescribed, and its distribution is here restricted to Rio de Janeiro state. Externally, the new species differs from M. gummatus in having distinct protoconch color and sculpture, teleoconch sculpture marked by strong anastomosing rugosities and malleations, and lighter colored white-greyish head-foot. Internally, it presents distinct jaw and radular features, a talon, and a long convoluted penis bearing two flagella. Additional comparisons with other Brazilian congeneric species are also provided.


2020 ◽  
Vol 45 (3) ◽  
pp. 537-543
Author(s):  
Karinne Sampaio Valdemarin ◽  
Jair Eustáquio Quintino Faria ◽  
Fiorella Fernanda Mazine ◽  
Vinicius Castro Souza

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.


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

Sign in / Sign up

Export Citation Format

Share Document