Rupjyoti Gogoi
Gauhati University, Department of Botany, Department Member
, Lichens not only play a major role in plant succession as pioneer species but also provide many ecosystem services. Various anthropogenic activities like habitat destruction, air pollution and over exploitation of lichens for economic... more
, Lichens not only play a major role in plant succession as pioneer species but also provide many ecosystem services. Various anthropogenic activities like habitat destruction, air pollution and over exploitation of lichens for economic uses seem to be the main threats for loss of lichen diversity. Hence, for in situ conservation of lichens, it is a prioritised need to document lichen species of a locality. Lichens of Assam are being extensively studied from a taxonomic point of view in recent years. An accurate and updated checklist of lichens is not available so far. Here we expand the knowledge of the lichen of Assam by critically surveyed the literatures and prepared an updated list of total 657 species of Assam.
Research Interests:
Bacidia pycnidiata (Ramalinaceae), Malmidea nigromarginata (Malmideaceae), Porina malmei and P. nuculastrum (Porinaceae), and Pyrenula laetior and P. wrightii (Pyrenulaceae) are reported for the first time from India. The specimens were... more
Bacidia pycnidiata (Ramalinaceae), Malmidea nigromarginata (Malmideaceae), Porina malmei and P. nuculastrum (Porinaceae), and Pyrenula laetior and P. wrightii (Pyrenulaceae) are reported for the first time from India. The specimens were collected from the state of Assam. Taxonomic descriptions, distributions, and illustrations are provided for each species.
Research Interests:
The present paper deals with 25 new records of lichens under 19 genera and 11 families for the state of Assam in India. The newly reported species from Assam are Alyxoria apomelaena, A. culmigena, A. varia, Caloplaca pseudisteroides,... more
The present paper deals with 25 new records of lichens under 19 genera and 11 families for the state of Assam in India. The newly reported species from Assam are Alyxoria apomelaena, A. culmigena, A. varia, Caloplaca pseudisteroides, Cryptothecia striata, Diorygma rupicola, Dirinaria papillulifera, Flavoplaca citrina, Graphis sundarbanensis, Herpothallon echinatum, Lecanographa rufa, Letrouitia muralis, Myriotrema clandestinum, Opegrapha discolor, Parmotrema crinitoides, Phaeophyscia hispidula, Porina eminentior, P. interstes, P. mastoidella, Pyrenula submastophora, P. thelomorpha, Rinodina oxydata, Synarthonia bicolor, Zwackhia bonplandii, and Z. viridis. Brief descriptions of these additional lichen taxa from Assam are provided to facilitate their identification.
While revising the lichen genus Buellia sensu lato from India, species Cratiria rubrum with brick red pigmented thallus is described as new to science. The new species is characterized by a red pigmented thallus, Buellia type ascospore,... more
While revising the lichen genus Buellia sensu lato from India, species Cratiria rubrum with brick red pigmented thallus is described as new to science. The new species is characterized by a red pigmented thallus, Buellia type ascospore, KOH+ red. Five species are reported for the first time from India viz., Amandinea efflorescens, A. incrustans, Baculifera orosa, Hafellia dissa and H. reagens.