Revision of the lichen genus Menegazzia in Japan, including two new species

Five Japanese species of the lichen genus Menegazzia are recorded. Menegazzia caviisidia Bjerke & P. James sp. nov. is characterized by numerous globose to dactyliform to narrowly obovate, hollow isidia, small conical perforations, and thamnolic acid as the major medullary constituent. It appear...

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Bibliographic Details
Published in:The Lichenologist (London) 2004-01, Vol.36 (1), p.15-25
Main Author: BJERKE, Jarle W.
Format: Article
Language:English
Subjects:
isidia
Japan
lichens
Menegazzia asahinae
menegazzia subsimilis
Menegazzia terebrata
new species
Parmeliaceae
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Description
Summary:Five Japanese species of the lichen genus Menegazzia are recorded. Menegazzia caviisidia Bjerke & P. James sp. nov. is characterized by numerous globose to dactyliform to narrowly obovate, hollow isidia, small conical perforations, and thamnolic acid as the major medullary constituent. It appears to be a rare species, so far known only from three localities on Honshu. The status of the primary species M. asahinae is elucidated. Menegazzia pedicellata Bjerke sp. nov. is a rare caperatic acid-containing species previously included in M. asahinae s. lat. Menegazzia asahinae s. str. has perforated margins of apothecia and contains the stictic acid complex. Menegazzia asahinae f. subimpertusa and M. pseudocyphellata are reduced to synonymy with M. asahinae s. str. Two sorediate species are known, viz. M. subsimilis and M. terebrata.
ISSN:0024-2829
1096-1135
DOI:10.1017/S0024282904013878