Hysterionica chamomilloides (Asteraceae: Astereae) a new species from the grassland ecosystem of Río de La Plata

Phytotaxa ◽  
2021 ◽  
Vol 482 (1) ◽  
pp. 36-44
Author(s):  
LEONARDO PAZ DEBLE
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Morphological Description ◽  
Similar Species ◽  
South American ◽  
Review Of Literature ◽  
South American Species ◽  
Field Surveys ◽  
Mountainous Regions ◽  
A New Species

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.

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
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Morphological Description ◽  
Similar Species ◽  
Review Of Literature ◽  
Rio Grande Do Sul ◽  
Distribution Map ◽  
Field Surveys ◽  
Grassland Ecosystems ◽  
A New Species

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.

Schinus pampeana (Anacardiaceae): a new endangered species from Rio Grande do Sul, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 452 (4) ◽  
pp. 278-287
Author(s):  
SÉRGIO AUGUSTO DE LORETO BORDIGNON ◽  
CLEUSA VOGEL ELY
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Rio Grande ◽  
Morphological Description ◽  
Similar Species ◽  
Rio Grande Do Sul ◽  
Distribution Map ◽  
Ecological Data ◽  
Status Assessment ◽  
A New Species

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.

Aspidistra magnifica (Asparagaceae), a new species from Central Vietnam

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
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Morphological Description ◽  
Similar Species ◽  
Ecological Information ◽  
Central Vietnam ◽  
Comparison Table ◽  
A New Species

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.

Rhamnidium riograndense (Rhamnaceae), a new species from southern Brazil

Phytotaxa ◽  
2021 ◽  
Vol 510 (1) ◽  
Author(s):  
MAURÍCIO FIGUEIRA ◽  
BIANCA SCHINDLER
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Rio Grande ◽  
South American ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
South American Species ◽  
Present Information ◽  
Rocky Habitats ◽  
A New Species

A new species, Rhamnidium riograndense, from southern Brazil, is here described and illustrated. We present information about its distribution, habitat, phenology, conservation status and a key for all the South American species of the genus is provided. The new species is endemic to the central part of the state of Rio Grande do Sul, in the transition between Paraná and Pampean provinces in rocky habitats, mostly mountain slopes, where only four populations are currently known.

Baccharis rectialata (Compositae: Astereae): a new species of carqueja from Uruguay

Phytotaxa ◽  
2021 ◽  
Vol 478 (2) ◽  
pp. 253-260
Author(s):  
MARÍA VICTORIA VALTIERRA ◽  
EDUARDO MARCHESI ◽  
GUSTAVO HEIDEN ◽  
JOSÉ M. BONIFACINO
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Morphological Description ◽  
Similar Species ◽  
Distribution Map ◽  
A New Species ◽  
Straight Wing

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.

Frailea erythracantha (Cactaceae): a new species from Pampa Grasslands, Rio Grande do Sul State, Brazil

Phytotaxa ◽  
2018 ◽  
Vol 369 (3) ◽  
pp. 211
Author(s):  
RODRIGO CORRÊA PONTES ◽  
ANABELA SILVEIRA DE OLIVEIRA DEBLE ◽  
LEONARDO PAZ DEBLE
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Point Of View ◽  
Habitat Conservation ◽  
Western Region ◽  
South American ◽  
Review Of Literature ◽  
Rio Grande Do Sul ◽  
Field Surveys ◽  
A New Species

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.

A new species of Protium (Burseraceae) from the Pacific Coast of Costa Rica

Phytotaxa ◽  
2020 ◽  
Vol 434 (2) ◽  
pp. 183-194
Author(s):  
RICARDO DE OLIVEIRA PERDIZ ◽  
DOUGLAS C. DALY ◽  
ALBERTO VICENTINI ◽  
PAUL V.A. FINE
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Pacific Coast ◽  
Similar Species ◽  
South American ◽  
Distribution Map ◽  
South American Species ◽  
The Pacific ◽  
A New Species

Protium santamariae is described and illustrated. The new species is restricted to the Pacific Coast of Costa Rica but shares morphological similarities with two South American species, P. kleinii and P. krukoffii. We provide a description, a distribution map, notes on its taxonomy, and a key to distinguish it from morphologically similar species.

Begonia trevisoensis, a new species of Begonia sect. Pritzelia (Begoniaceae) from Santa Catarina State, Brazil

Phytotaxa ◽  
2018 ◽  
Vol 381 (1) ◽  
pp. 51
Author(s):  
JULIO C. JARAMILLO ◽  
LUDOVIC JEAN CHARLES KOLLMANN ◽  
PEDRO FIASCHI
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Species Conservation ◽  
Morphological Description ◽  
Similar Species ◽  
Santa Catarina ◽  
Line Drawings ◽  
A New Species ◽  
Santa Catarina State

A new species of Begonia is documented from Santa Catarina state, Brazil. Begonia trevisoensis is so far known only from the municipality of Treviso, in the Southern part of Santa Catarina. The new species is similar to B. itatinensis, from which it can be distinguished by the leaf and stipule size and form. A detailed morphological description, line drawings, photographs, map, comparisons with morphologically similar species, conservation status and a discussion of the species sectional placement are provided.

scholarly journals A new species of Drypetes (Putranjivaceae) discovered by J. Léonard in the Democratic Republic of the Congo

2020 ◽  
Vol 153 (2) ◽  
pp. 312-320
Author(s):  
Alejandro Quintanar ◽  
David J. Harris ◽  
Patricia Barberá
Keyword(s):  
New Species ◽  
Democratic Republic ◽  
Conservation Status ◽  
Morphological Description ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Morphometric Measurements ◽  
Republic Of The Congo ◽  
Available Information ◽  
A New Species

Background – During his stay in Yangambi in the 1940s, the Belgian botanist J. Léonard collected a species of the genus Drypetes endemic to the Democratic Republic of the Congo. He named it D. morocarpa on herbarium labels, but never published it.Methods – The present study is based on the revision of 26 collections of D. morocarpa. Morphometric measurements on herbarium specimens belonging to the new species and its closest relatives in Drypetes were carried out in order to describe this new species.Results – We describe here D. morocarpa J.Léonard ex D.J.Harris & Quintanar. It is easily recognisable by its blackish twigs and young branchlets, orbicular stipules, leaf blades usually entire, and hard fruits, covered with irregular protuberances. It has been collected in two areas along the course of the Congo river or its tributaries. A differential diagnosis, a detailed morphological description, a key to distinguish it from the most similar species, an illustration and all the available information about its habitat, distribution and conservation status are provided.

Pariana caxiuanensis (Parianinae, Poaceae): a new species of an enigmatic genus of herbaceous bamboos from the Brazilian Amazon

Phytotaxa ◽  
2021 ◽  
Vol 510 (2) ◽  
Author(s):  
KAUÊ NICOLAS LINDOSO DIAS ◽  
FABRÍCIO MOREIRA FERREIRA ◽  
PEDRO LAGE VIANA
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Brazilian Amazon ◽  
Morphological Description ◽  
Herbaceous Bamboos ◽  
Status Assessment ◽  
A New Species

Pariana caxiuanensis (Poaceae) is described and illustrated as a new species from the Brazilian Amazon. The new species is characterized by having the leaves clustered at the apex of the leafy culm, fimbriae few to absent, dimorphic flowering culms, large ligules (2.5–4 mm long), and pubescent to hirsute synflorescences. We present a morphological description, illustrations of the new species, the conservation status assessment, and a key to differentiate P. caxiuanensis from its morphologically related congeners.

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