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A re-evaluation of thelotremoid Graphidaceae (lichenized Ascomycota: Ostropales) in India

Published online by Cambridge University Press:  06 December 2018

Santosh JOSHI ,
Dalip K. UPRETI ,
Pradeep K. DIVAKAR ,
H. Thorsten LUMBSCH  and
Robert LÜCKING
Santosh JOSHI
Affiliation:
Lichenology Laboratory, CSIR–National Botanical Research Institute, Rana Pratap Marg, Lucknow (UP)–226001, India. Email: sj_lichenology@rediffmail.com
Dalip K. UPRETI
Affiliation:
Lichenology Laboratory, CSIR–National Botanical Research Institute, Rana Pratap Marg, Lucknow (UP)–226001, India. Email: sj_lichenology@rediffmail.com
Pradeep K. DIVAKAR
Affiliation:
Departamento de Biologia Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal, 28040, Madrid, Spain
H. Thorsten LUMBSCH
Affiliation:
Science & Education, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605–2496, USA
Robert LÜCKING
Affiliation:
Botanischer Garten und Botanisches Museum, Freie Universität Berlin, Königin-Luise-Strasse 6–8, 14195 Berlin, Germany
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Abstract

An account of thelotremoid species of Graphidaceae in India is provided, which includes 124 species in 24 genera. Ocellularia and Thelotrema are the most diverse genera represented by 34 and 18 species, respectively. Type specimens were re-examined and additional samples studied morphologically and chemically. One new species, Ocellularia upretii S. Joshi, Divakar, Lumbsch & Lücking, is described; it is characterized by a greyish green thallus, porinoid ascomata, brown proper exciple, simple, carbonized columella, clear hymenium, transversely septate, amyloid ascospores of 110–125×15–20 µm and an absence of secondary metabolites. Asteristion australianum, Astrochapsa mirabilis, Cruentotrema cruentatum, C. kurandense, Ocellularia violacea and Thelotrema adjectum are reported as new to the country, and Astrochapsa mirabilis, Melanotrema submicrosporoides, Ocellularia annuloelevata, O. subkeralensis and Rhabdodiscus verrucoisidiatus are proposed as new combinations. Diploschistes awasthii, Ocellularia gupeti, O. leucina, O. mahabalei, Thelotrema confertum and T. verrucorugosum are synonymized under D. scruposus, O. neomasonhalei, O. urceolaris, O. thelotremoides, Chapsa leprocarpoides and T. rugatulum, respectively, with Ocellularia canariana and O. verrucomarginata reduced to synonymy with O. allosporoides.

Keywords

Andaman & Nicobar IslandsEastern HimalayakeysrainforestWestern Ghats
Type
Articles
Information
The Lichenologist , Volume 50 , Issue 6 , November 2018 , pp. 627 - 678
Copyright
© British Lichen Society, 2018 

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