Occurrence and distribution of Perichaena (Trichiaceae, Myxomycetes) in the Brazilian Northeastern Region

Laise De Holanda Cavalcanti,Nestor Valente Powell,Vitor Xavier De Lima,Leandro De Almeida Neves Nepomuceno Agra,Andrea Carla Caldas Bezerra,Antônia Aurelice Aurélio Costa,David Itallo Barbosa

doi:10.1590/0102-33062015abb0238

Laise De Holanda Cavalcanti, Nestor Valente Powell + Show 5 more

Open Access

https://doi.org/10.1590/0102-33062015abb0238

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Abstract

The known distribution of Perichaena calongei, P. chrysosperma, P. corticalis, P. depressa, P. microspora, P. pedata and P. vermicularis in the nine states that comprise Brazil's Northeast Region (1,548,672 km2) is presented herein, enhancing our understanding of the distribution of the genusPerichaena (Trichiaceae, Myxomycetes) in the Neotropics. This inventory encompasses a 100-year period (1914-2014), and analyzes material deposited in herbaria and collected by the authors. The collected material came from areas of thorny deciduous vegetation typical of the Caatinga biome and portions of savannah in the continent's interior, rainforests,restingas (tropical moist broadleaf forests found along Brazil's coastal spits) and mangroves of the Atlantic Forest biome along a coastal zone of approximately 3,000 km. Descriptions, illustrations, vegetational environments, microhabitats and distribution maps are given for each species. New records include Perichaena chrysosperma andP. depressa in the state of Maranhao, P. corticalis in the states of Bahia, Piaui, Rio Grande do Norte and Sergipe, P. calongei in the Northeast Region, and P. pedata in Brazil. This paper adds to the known types of macroclimates, elevation levels, vegetational environments and substrates for these species and provides a better understanding of their global distribution pattern.

Highlights

New records include Perichaena chrysosperma and P. depressa in the state of Maranhão, P. corticalis in the states of Bahia, Piauí, Rio Grande do Norte and Sergipe, P. calongei in the Northeast Region, and P. pedata in Brazil
Additional information regarding the species of Perichaena in Brazil is sparse with only Cavalcanti (1974a) supplying information on the types of environment, microhabitats and seasonal variation of the species that occur in the state of Pernambuco: P. chrysosperma, P. depressa, P. corticalis, P. microspora and P. vermicularis
Aiming to expand up on the existing knowledge of the geographic and ecosystem distribution of myxomycetes in the Neotropics, this study presents the species of Perichaena found in the different states of the Northeast Region of Brazil and provides the vegetational environments they occupy based on records made between the years of 1914 and 2014

Summary

Introduction

New records include Perichaena chrysosperma and P. depressa in the state of Maranhão, P. corticalis in the states of Bahia, Piauí, Rio Grande do Norte and Sergipe, P. calongei in the Northeast Region, and P. pedata in Brazil. Additional information regarding the species of Perichaena in Brazil is sparse with only Cavalcanti (1974a) supplying information on the types of environment, microhabitats and seasonal variation of the species that occur in the state of Pernambuco: P. chrysosperma, P. depressa, P. corticalis, P. microspora and P. vermicularis.

Results

Conclusion