Physarum andinum, a new nivicolous species of myxomycete from the Patagonian Andes.

Abstract:

:A new nivicolous species of Physarum was discovered during the study of myxomycetes in the Patagonian Andes of South America. It is described herein under the name Physarum andinum. The species is characterized by stalked sporophores or more rarely sessile sporocarps or short plasmodiocarps. The sporocarps are strikingly large, reaching 2.6 mm tall and 3 mm diam when open, and have a peridium with three layers, the internal layer being clearly visible and opening separately. Physarum andinum was found at five localities in Argentina as well as in herbarium material collected about 100 y ago in Chile. The new species is reminiscent of the non-nivicolous species Physarum brunneolum, but the latter forms smaller sporophores, has darker spores and the three layers of the peridium are adhered and open together. The characters of the new species were examined under stereomicroscope, light microscope and scanning electron microscope and micrographs of relevant details are included.

journal_name

Mycologia

journal_title

Mycologia

authors

Ronikier A,Lado C

doi

10.3852/11-397

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

162-71

issue

1

eissn

0027-5514

issn

1557-2536

pii

11-397

journal_volume

105

pub_type

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