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A new species of Hypocrella, H. macrostroma, and its phylogenetic relationships to other species with large stromata

Published online by Cambridge University Press:  30 September 2005

Priscila CHAVERRI ,
Joseph F. BISCHOFF ,
Miao LIU  and
Kathie T. HODGE
Priscila CHAVERRI
Affiliation:
Department of Plant Pathology, Cornell University, 334 Plant Science Building, Ithaca, New York 14853, USA. E-mail: priscila@nt.ars-grin.gov Present address: USDA-ARS, Systematic Botany and Mycology Laboratory, Rm. 304, B-011A, 10300 Baltimore Avenue, Beltsville, Maryland 20705, USA.
Joseph F. BISCHOFF
Affiliation:
National Center for Biotechnology Information, National Institutes of Health, Bethesda, Maryland 20894, USA.
Miao LIU
Affiliation:
Department of Plant Pathology, Cornell University, 334 Plant Science Building, Ithaca, New York 14853, USA. E-mail: priscila@nt.ars-grin.gov
Kathie T. HODGE
Affiliation:
Department of Plant Pathology, Cornell University, 334 Plant Science Building, Ithaca, New York 14853, USA. E-mail: priscila@nt.ars-grin.gov
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Abstract

Two specimens of a new species of Hypocrella with large stromata were collected in Bolivia and Costa Rica. The morphology of the new species, H. macrostroma sp. nov., was compared with that of other species with large stromata, i.e. H. africana, H. gaertneriana, and H. schizostachyi. In addition, phylogenetic analyses of partial sequences from three genes, large subunit nuclear ribosomal DNA (LSU), translation elongation factor 1-α (EF1-α), and RNA polymerase II subunit 1 (RPB1), were conducted to determine the relationships of the new species to other species of Hypocrella/Aschersonia. Phylogenetic analyses show that H. macrostroma belongs to a strongly supported clade that includes H. africana, H. schizostachyi, and Aschersonia insperata, whereas other Hypocrella species belong to two sister clades. Hypocrella macrostroma is described and illustrated, and a lectotype is designated for H. gaertneriana.

Type
Research Article
Information
Mycological Research , Volume 109 , Issue 11 , November 2005 , pp. 1268 - 1275
Copyright
The British Mycological Society 2005

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