scholarly journals Taxonomic revision of Amorimia W.R. Anderson (Malpighiaceae)

Hoehnea ◽  
2018 ◽  
Vol 45 (2) ◽  
pp. 238-306 ◽  
Author(s):  
Rafael Felipe de Almeida
Keyword(s):  
South America ◽  
Tropical Forests ◽  
Taxonomic Revision ◽  
Identification Key ◽  
Risk Assessments ◽  
Distribution Maps ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

ABSTRACT The taxonomic revision of Amorimia (Malpighiaceae) is presented, including typifications, and descriptions for all accepted species. The genus is endemic to Seasonally Dry Tropical Forests and Rainforests of South America, and its species can be distinguished by morphological details of leaves, indumenta, inflorescences, flowers, and fruits. This study includes an identification key for the subgenera and species of Amorimia, illustrations, distribution maps, conservation risk assessments, and comments on ecology, nomenclature, and taxonomy for all species. Additionally, I provide a key to differentiate Amorimia from the remaining genera of the Malpighioid clade.

scholarly journals Holocene southward expansion in seasonally dry tropical forests in South America: phylogeography ofFicus bonijesulapensis(Moraceae)

2015 ◽  
Vol 177 (2) ◽  
pp. 189-201 ◽  
Author(s):  
Fábio de Almeida Vieira ◽  
Renan Milagres Lage Novaes ◽  
Cristiane Gouvêa Fajardo ◽  
Rubens Manoel dos Santos ◽  
Hisaias de Souza Almeida ◽  
...  
Keyword(s):  
South America ◽  
Tropical Forests ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

Tropicoporus drechsleri (Hymenochaetales, Basidiomycota), a new species in the “Inonotus linteus” complex from northern Argentina

Phytotaxa ◽  
2018 ◽  
Vol 338 (1) ◽  
pp. 75 ◽  
Author(s):  
CARLOS A. SALVADOR-MONTOYA ◽  
DIOGO H. COSTA-REZENDE ◽  
VALÉRIA FERREIRA-LOPES ◽  
MARCO A. BORBA-SILVA ◽  
ORLANDO F. POPOFF
Keyword(s):  
New Species ◽  
South America ◽  
Tropical Forests ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests ◽  
A New Species

Morphological revision and phylogenetic analyses, based on nrITS and nrLSU, of specimens previously considered to be member of the “Inonotus linteus” species complex from in South America reveal a new species of Tropicoporus, here named T. drechsleri. It is a parasitic polypore restricted to the seasonally dry tropical forests of subtropical South America. Illustrations, taxonomic analyses and a discussion are presented, and a key to the Tropicoporus species in the Neotropics is provided.

A revision of Geoffroea(Leguminoscw–Papilionoideae)

1999 ◽  
Vol 56 (3) ◽  
pp. 329-347 ◽  
Author(s):  
H. Ireland ◽  
R. T. Pennington
Keyword(s):  
South America ◽  
Tropical Forests ◽  
Morphological Variation ◽  
Seasonally Dry ◽  
Number Of Species ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

Geoffroea (Leguminosae–Papilionoideae) has traditionally comprised three species. In this revision the number of species is reduced to two because G. striata (Willd.) Morong is considered indistinct from G. spinosa Jacq. and is placed in synonymy. No significant morphological variation is found between the five isolated areas of distribution of G. spinosa, which occurs in the disjunct seasonally dry tropical forests of South America, and there is certainly no basis for recognizing separate taxa.

Ditaxis (Euphorbiaceae) from the Brazilian Caatinga, including a new species

Phytotaxa ◽  
2020 ◽  
Vol 455 (2) ◽  
pp. 152-160
Author(s):  
JOSIMAR KÜLKAMP ◽  
JOÃO R. V. IGANCI ◽  
INÊS CORDEIRO ◽  
JOSÉ FERNANDO A. BAUMGRATZ
Keyword(s):  
New Species ◽  
South America ◽  
Central America ◽  
Tropical Forests ◽  
Endemic Species ◽  
Habitat Distribution ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests ◽  
A New Species

Ditaxis is a Neotropical genus with approximately 50 species, most of them in seasonally dry tropical forests of Brazil, Central America and the Antilles. The Brazilian Caatinga, the largest area of SDTF in South America, harbors three endemic species of Ditaxis, including the new Ditaxis grazielae, hereby described and illustrated. The new species is known from a few localities in the state of Bahia. We provide an identification key for the species occurring in the Caatinga, as well as comments on habitat, distribution and phenology. We also present amended descriptions and typifications for Ditaxis desertorum and D. malpighiacea, and propose D. gardneri as synonym of D. desertorum.

scholarly journals El Niño-Southern Oscillation affects the water relations of tree species in the Yucatan Peninsula, Mexico

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jorge Palomo-Kumul ◽  
Mirna Valdez-Hernández ◽  
Gerald A. Islebe ◽  
Manuel J. Cach-Pérez ◽  
José Luis Andrade
Keyword(s):  
Water Potential ◽  
Leaf Area ◽  
Tropical Forests ◽  
Specific Leaf Area ◽  
Tree Species ◽  
Deciduous Species ◽  
Mature Trees ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

AbstractWe evaluated the effect of ENSO 2015/16 on the water relations of eight tree species in seasonally dry tropical forests of the Yucatan Peninsula, Mexico. The functional traits: wood density, relative water content in wood, xylem water potential and specific leaf area were recorded during the rainy season and compared in three consecutive years: 2015 (pre-ENSO conditions), 2016 (ENSO conditions) and 2017 (post-ENSO conditions). We analyzed tree size on the capacity to respond to water deficit, considering young and mature trees, and if this response is distinctive in species with different leaf patterns in seasonally dry tropical forests distributed along a precipitation gradient (700–1200 mm year−1). These traits showed a strong decrease in all species in response to water stress in 2016, mainly in the driest site. Deciduous species had lower wood density, higher predawn water potential and higher specific leaf area than evergreen species. In all cases, mature trees were more tolerant to drought. In the driest site, there was a significant reduction in water status, regardless of their leaf phenology, indicating that seasonally dry tropical forests are highly vulnerable to ENSO. Vulnerability of deciduous species is intensified in the driest areas and in the youngest trees.

Sign in / Sign up

Export Citation Format

Share Document