Pyrrosia porosa (C. Presl) Hovenkamp – A New Diploid Cytotype of South India from Kolli Hills of Eastern Ghats, Tamil Nadu, India - Abstract
The present investigation is on the chromosome count of Pyrrosia porosa (C. Presl) Hovenkamp, a fern of Kolli Hills, Eastern Ghats, South India. The young sori were collected from Kuzhivalavu of Kolli Hills. The sori showed 37 bivalents at first meiosis of spore mother cells. Diploid cytotype of P. porosa has been reported from Eastern India and Eastern Himalaya so far. This is the first report of the diploid cytotype from South India.