Scoparia pentapetala (Plantaginaceae), a new species from the grassland ecosystems of Río de La Plata

Phytotaxa ◽  
2019 ◽  
Vol 416 (4) ◽  
pp. 287-293
Author(s):  
LEONARDO PAZ DEBLE ◽  
BÁRBARA PINHEIRO MOREIRA

Scoparia is a genus comprising ten species distributed mainly in the grasslands of southern Brazil, Uruguay, Argentina and Paraguay. Based on field surveys, study of nomenclatural types and other specimens, and review of literature we found an interesting new species of Scoparia from southern region of the State of Rio Grande do Sul, Brazil, and Department of Cerro Largo, northeast Uruguay. Described here as S. pentapetala. This work provides a detailed morphological description of the new species, information on geographic distribution, habitat, phenology, conservation status and, discusses the main differences between S. pentapetala and the morphologically most similar species. Illustrations, images and a distribution map are also supplied.

Phytotaxa ◽  
2021 ◽  
Vol 482 (1) ◽  
pp. 36-44
Author(s):  
LEONARDO PAZ DEBLE

Hysterionica s.l. (including Neja) comprises ca. 15 species distributed mainly in the grasslands of southern Brazil, Uruguay, central and northern Argentina and Southern Paraguay. Based on field surveys, study of nomenclatural types and other specimens, and review of literature, a new species is proposed here, Hysterionica chamomilloides, endemic of mountainous regions of northern Uruguay, and southwestern Rio Grande do Sul state, Brazil. This work provides a detailed morphological description of the new species, information on its geographic distribution, habitat, phenology, conservation status, and discusses the main differences between H. chamomilloides and the morphologically most similar species. Illustrations, images and a key to the South American species of Hysterionica are also supplied.


Phytotaxa ◽  
2020 ◽  
Vol 452 (4) ◽  
pp. 278-287
Author(s):  
SÉRGIO AUGUSTO DE LORETO BORDIGNON ◽  
CLEUSA VOGEL ELY

Schinus pampeana is a new species from Brazilian Pampa. The new species was tentatively included in Schinus sect. Terebinthifolia, and is morphologically most similar to Schinus lentiscifolia and S. weinmanniifolia. We present here a detailed morphological description, a geographical distribution map, IUCN conservation status assessment, ecological data, photographs, and a table of diagnostic characters of S. pampeana and the most similar species. Schinus pampeana increases the total number of Schinus to about 49 species, of which eleven are recorded in Brazil.


2019 ◽  
Vol 44 (4) ◽  
pp. 851-856
Author(s):  
Martin Grings ◽  
Sérgio Augusto de Loreto Bordignon ◽  
Ilsi Iob Boldrini

Abstract—Monteiroa rubra is described as a remarkable new species from Rio Grande do Sul, Brazil. It is notably distinct from the other ten species of Monteiroa. The new species is morphologically most similar to the four species of the genus with unlobed leaves that also lack cordate leaf bases. Monteiroa rubra apparently is an endemic species known from three localities in wetlands associated with grasslands in Augusto Pestana and Fontoura Xavier municipalities in southern Brazil. A morphological description, distribution map, photographs, ecological notes, and a key to morphologically most similar species are presented. According to IUCN criteria, if a formal assessment were performed, the new species would probably be considered Endangered.


Phytotaxa ◽  
2021 ◽  
Vol 478 (2) ◽  
pp. 253-260
Author(s):  
MARÍA VICTORIA VALTIERRA ◽  
EDUARDO MARCHESI ◽  
GUSTAVO HEIDEN ◽  
JOSÉ M. BONIFACINO

Baccharis rectialata (Compositae: Astereae), a new species of B. sect. Caulopterae from the grasslands in northeastern Uruguay is described. The new species is morphologically similar to B. crispa and can be differentiated by its straight wing margins, shorter involucres and pappus in staminate capitula. We provide a detailed morphological description, and information on the distribution, habitat, phenology, and conservation status. Additionally, we discuss the main differences between B. rectialata and other closely related and morphologically similar species, and provide a key for identification of subshrubs belonging to B. sect. Caulopterae occurring in Uruguay, as well as illustrations, images, and a distribution map of the new species.


Phytotaxa ◽  
2016 ◽  
Vol 258 (1) ◽  
pp. 83 ◽  
Author(s):  
Marcelo Trovó ◽  
Paulo Takeo Sano ◽  
Claudio Nicoletti De Fraga

We describe and illustrate Paepalanthus capixaba, a new species of Paepalanthus ser. Paepalanthus. The species is endemic to Espírito Santo state and restricted to a very distinct and endangered area, which comprises a mosaic of quartzitic sandy patches within a granitic argillaceous site. The indument of leaves, spathes, and scapes is crucial to recognize the taxon as a unique entity. The species is compared to Paepalanthus klotzschianus, the morphologically most similar species. An official conservation status of critically endangered species was assessed by the Centro Nacional de Conservação da Flora committee. Comments on the occurrence area and the morphological variation of the species, as well as a distribution map, photos, and illustrations are provided.


Phytotaxa ◽  
2021 ◽  
Vol 480 (1) ◽  
pp. 22-28
Author(s):  
NGỌC-SÂM LÝ ◽  
KHANG SINH NGUYEN ◽  
THANH-SƠN HOÀNG ◽  
VĂN-NHÂN ĐỖ ◽  
HANS-JUERGEN TILLICH

Aspidistra magnifica, a new species from Mount Cà Đam, Quảng Ngãi Province, Central Vietnam, is described and illustrated. It is similar to A. maguanensis in having purple-black flowers, twelve perigone lobes and stamens, and a table-shaped pistil, but differs by its somewhat elliptic leaf blades, short flowering peduncles, much large broadly campanulate to bowl shaped perigone tube, longer outcurved perigone lobes and larger rounded stigma. A morphological description, two colour plates, the distribution, ecological information, the conservation status, and a comparison table of similar species are given.


Phytotaxa ◽  
2019 ◽  
Vol 406 (4) ◽  
pp. 243-249
Author(s):  
PEDRO HENRIQUE CARDOSO ◽  
LUIZ MENINI NETO ◽  
FÁTIMA REGINA GONÇALVES SALIMENA

A new species of Lippia endemic to the Brazilian Atlantic Forest is described and illustrated. Lippia diversifolia is currently known from the inselbergs of Espírito Santo and Rio de Janeiro and is characterized by markedly tetragonal branches, of which the opposed sides are densely strigose and the other glabrescent, with indument alternating in the subsequent internode, leaf blade cartaceous to coriaceous, adaxial surface strigose, abaxial surface tomentose or strigose, peduncle 3.5–9 cm long, bracts strigose with apex acute, inconspicuous calyx, and white sessile glands along the whole plant. We provide field photographs, distribution map, conservation status and a table with the main characters that distinguish it from Lippia rubella, which is a morphologically similar species.


Phytotaxa ◽  
2017 ◽  
Vol 319 (1) ◽  
pp. 93
Author(s):  
LEONARDO O. ALVARADO-CÁRDENAS ◽  
LUCIO LOZADA-PÉREZ

We describe and illustrate a new species of Mandevilla for the states of Oaxaca and Veracruz, Mexico. Mandevilla sherlockii sp. nov. can be separated from the other similar species of the genus by its subcoriaceous leaf blades and inflorescences with a conspicuously curved rachis between each flower. Including this new species, Mexico is a hotspot for the genus with a 24 species, 11 of which are endemic. We provide a distribution map, suggest a conservation status for the new species, and provide a key for the species of Mandevilla found in Mexico and Central America.


Phytotaxa ◽  
2018 ◽  
Vol 369 (3) ◽  
pp. 211
Author(s):  
RODRIGO CORRÊA PONTES ◽  
ANABELA SILVEIRA DE OLIVEIRA DEBLE ◽  
LEONARDO PAZ DEBLE

The South American genus Frailea includes taxa which are no sufficiently known from the taxonomical point of view. Based on field surveys, nomenclatural types and other specimens and review of literature we found an interesting population of a Frailea species from western region of the State of Rio Grande do Sul, Brazil which was described as Frailea erythracantha sp. nov. Data regarding its geographic distribution, phenology, habitat, conservation, and morphological affinities with related species are provided.


Phytotaxa ◽  
2016 ◽  
Vol 288 (3) ◽  
pp. 214 ◽  
Author(s):  
MEHMET FIRAT ◽  
KEMAL YILDIZ

A new perennial species, Silene konuralpii sp. nov. (Silene sect. Spergulifoliae) is described and illustrated from eastern Anatolia. A momorphological comparison with the similar species S. stenobotrys, S. spergulifolia, and S. surculosa is given as well as the ultrastructure of the leaf, seed and pollen grain. Original drawings and photographs, distribution map, notes on ecology, and IUCN conservation status are also provided.


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