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Contributions to the genus Synarthonia (lichenized Ascomycota, Arthoniaceae)

Published online by Cambridge University Press:  16 March 2015

Siljo Joseph  and
Gopal Prasad Sinha
Siljo Joseph
Affiliation:
Botanical Survey of India, Central Regional Centre, Allahabad – 211 002, Uttar Pradesh, India.
Gopal Prasad Sinha*
Affiliation:
Botanical Survey of India, Central Regional Centre, Allahabad – 211 002, Uttar Pradesh, India.
*
Email: drgpsinha@gmail.com
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Abstract

The type specimens of Synarthonia bicolor and S. stigmatidialis were examined, leading the authors to revise their descriptions as well as the generic description. Also, two new species of Synarthonia, viz. S. psoromica and S. sikkimensis are described from India. Synarthonia psoromica, collected from the Nilgiri Hills of Tamil Nadu, is characterized by immersed synascomata and the presence of psoromic acid. Synarthonia sikkimensis, collected from Sikkim-Himalaya, is characterized by the sorediate thallus with a rhizomorph-like prothallus. These distinguishing characters are observed for the first time in Synarthonia. After considering the protologue of the recently described S. sarcographoides, a comprehensive account of this genus is made. In addition, a world key to all known species of Synarthonia is provided.

Keywords

ArthonialesIndialichennew speciestaxonomy
Type
Articles
Information
The Lichenologist , Volume 47 , Issue 2 , March 2015 , pp. 123 - 130
Copyright
© British Lichen Society, 2015 

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References

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