Topic
Bernardia
About: Bernardia is a research topic. Over the lifetime, 15 publications have been published within this topic receiving 103 citations.
Papers
9 Sep 2011
TL;DR: In this paper, the authors present a PRELIMINARY CHECKLIST for GENERA and SPECIES of MEXICAN EUPHORBIACEAE, considering their DISTRIBUTION and de-gree of endemism.
Abstract: THE FAMILY EUPHORBIACEAE IS ONE OF THE MOST DIVERSE FAMILIES OF AN- GIOSPERMS. IT INCLUDES 5 SUBFAMILIES, 49 TRIBES, 317 GENERA AND ABOUT 8100 SPECIES, WITH DISTRIBUTION MAINLY IN TROPICAL AND SUBTROPICAL ZONES OF THE WORLD. THE MAIN OBJECTIVE OF THIS PAPER IS TO PRESENT A PRELIMINARY CHECKLIST FOR GENERA AND SPECIES OF MEXICAN EUPHORBIACEAE, CONSIDERING THEIR DISTRIBUTION AND DE- GREE OF ENDEMISM. FOR THIS PURPOSE, THE HERBARIA MEXU, ENCB, FCME, UAMIZ, CHAPA, CICY AND CIQRO WERE CONSULTED. FROM THE DATA OBTAINED, AND AFTER REVIEWING THE LITERATURE AND COLLECTIONS, THE SYNONYMOUS NAMES WERE ELIMINATED. FIFTY GENERA AND 826 SPECIES WERE FOUND, 55.52 % OF THESE ENDEMIC TO MEXICO. EUPHORBIACEAE IS THE SIXTH FAMILY IN IMPORTANCE IN MEXICO CONSIDERING THE NUMBER OF SPECIES, AND AMONG THE FAMILIES RICHEST IN ENDEMIC SPECIES. THE LARGEST GENERA ARE EUPHORBIA (138 SPP.), CROTON (126 SPP.), CHAMAESYCE (103 SPP.) AND ACALYPHA (126 SPP.), WHEREAS THOSE GENERA WITH THEIR GREATEST CENTER OF DIVERSIFICATION IN MEXICO ARE BERNARDIA, CNIDOSCOLUS AND PEDILANTHUS; ONLY ENRIQUEBELTRANIA IS CONSIDERED ENDEMIC. IN ORDER OF IMPORTANCE, THE STATES WITH THE HIGHEST DIVERSITY (MORE THAN 100 SPECIES) ARE OAXACA, CHIAPAS, VERACRUZ, JALISCO, GUERRERO, SONORA, PUEBLA, SINALOA, TAMAULIPAS, NAYARIT AND MICHOACAN. A DICHOTOMOUS KEY TO DISTINGUISH ALL MEXICAN GENERA OF EUPHORBIACEAE IS PRESENTED, AS WELL AS DESCRIPTIONS AND REPRESENTATIVE ILLUSTRATIONS FOR EACH GENUS.
46 citations
10 May 2009
TL;DR: In this article, the authors present a PRELIMINARY CHECKLIST for GENERA and SPECIES of MEXICAN EUPHORBIACEAE, considering their DISTRIBUTION and de-gree of endemism.
Abstract: THE FAMILY EUPHORBIACEAE IS ONE OF THE MOST DIVERSE FAMILIES OF AN- GIOSPERMS. IT INCLUDES 5 SUBFAMILIES, 49 TRIBES, 317 GENERA AND ABOUT 8100 SPECIES, WITH DISTRIBUTION MAINLY IN TROPICAL AND SUBTROPICAL ZONES OF THE WORLD. THE MAIN OBJECTIVE OF THIS PAPER IS TO PRESENT A PRELIMINARY CHECKLIST FOR GENERA AND SPECIES OF MEXICAN EUPHORBIACEAE, CONSIDERING THEIR DISTRIBUTION AND DE- GREE OF ENDEMISM. FOR THIS PURPOSE, THE HERBARIA MEXU, ENCB, FCME, UAMIZ, CHAPA, CICY AND CIQRO WERE CONSULTED. FROM THE DATA OBTAINED, AND AFTER REVIEWING THE LITERATURE AND COLLECTIONS, THE SYNONYMOUS NAMES WERE ELIMINATED. FIFTY GENERA AND 826 SPECIES WERE FOUND, 55.52 % OF THESE ENDEMIC TO MEXICO. EUPHORBIACEAE IS THE SIXTH FAMILY IN IMPORTANCE IN MEXICO CONSIDERING THE NUMBER OF SPECIES, AND AMONG THE FAMILIES RICHEST IN ENDEMIC SPECIES. THE LARGEST GENERA ARE EUPHORBIA (138 SPP.), CROTON (126 SPP.), CHAMAESYCE (103 SPP.) AND ACALYPHA (126 SPP.), WHEREAS THOSE GENERA WITH THEIR GREATEST CENTER OF DIVERSIFICATION IN MEXICO ARE BERNARDIA, CNIDOSCOLUS AND PEDILANTHUS; ONLY ENRIQUEBELTRANIA IS CONSIDERED ENDEMIC. IN ORDER OF IMPORTANCE, THE STATES WITH THE HIGHEST DIVERSITY (MORE THAN 100 SPECIES) ARE OAXACA, CHIAPAS, VERACRUZ, JALISCO, GUERRERO, SONORA, PUEBLA, SINALOA, TAMAULIPAS, NAYARIT AND MICHOACAN. A DICHOTOMOUS KEY TO DISTINGUISH ALL MEXICAN GENERA OF EUPHORBIACEAE IS PRESENTED, AS WELL AS DESCRIPTIONS AND REPRESENTATIVE ILLUSTRATIONS FOR EACH GENUS.
27 citations
TL;DR: A comparative study of leaf architecture and anatomy of 42 species of Bernardia and other genera related of Acalyphoideae was undertaken to identify characters that support infrageneric and specific delimitation.
Abstract: A comparative study of leaf architecture and anatomy of 42 species of Bernardia and other genera related of Acalyphoideae was undertaken to identify characters that support infrageneric and specific delimitation. Thirty variable foliar architectural and anatomical characters were studied. Some characters are consistent (e.g., venation pattern, secondary and tertiary vein arrangement, presence or absence of agrophic veins, type of areoles, bundle sheath cell type, presence or absence of fibers in the mesophyll, trichome type, stomata location, and type of crystals), and characterize genera. In addition, foliar character distribution within Bernardia supports the most recent infrageneric classification.
12 citations
TL;DR: A taxonomic study based on scanning electron microscopy of pollen, macro-morphology, and a molecular phylogenetic analysis of the chloroplast DNA regions trnL-F and rbcL shows that Lasiocroton trelawniensis belongs to the Neotropical genus Bernardia.
Abstract: Lasiocroton trelawniensis (Euphorbiaceae), a critically endangered species from the Cockpit Country of Jamaica, belongs to Bernardia (Euphorbiaceae). Botanical Review Vol. 74, No., 1 2008.—A taxonomic study based on scanning electron microscopy of pollen, macro-morphology, and a molecular phylogenetic analysis of the chloroplast DNA regions trnL-F and rbcL shows that Lasiocroton trelawniensis belongs to the Neotropical genus Bernardia. The main morphological differences between Bernardia and Lasiocroton are given, and the new combination Bernardia trelawniensis is provided.
10 citations
TL;DR: The new combination Adelia cinerea (basionym: Bernardieae to Adelieae) is made, which brings the number of Mexican species of Adelia to six and implies a tribal change within subfamily Acalyphoideae.
Abstract: The new combinationAdelia cinerea (basionym:Bernardia cinerea) is made. Notes on its distribution and ecology are provided, as well as a full morphological description. A discussion on the morphological and palynological distinctions betweenAdelia andBernardia, and reasons for the transfer, are presented. The placement of this species inAdelia implies a tribal change (from Bernardieae to Adelieae) within subfamily Acalyphoideae. It brings the number of Mexican species ofAdelia to six.
6 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2019 | 3 |
| 2017 | 1 |
| 2014 | 1 |
| 2012 | 1 |
| 2011 | 1 |