01517nas a2200157   4500000000100000008004100001260002500042653001800067653004900085100001200134245012800146300001200274490000700286520104100293022002501334       2020                            d  bAkademiai Kiado Zrt.10aPlant Science10aEcology, Evolution, Behavior and Systematics1 aJoshi Y00aPolycoccum Hawksworthianum (Polycoccaceae, Trypetheliales), A New Lichenicolous Fungus on Lepra and Varicellaria from India  a217-2240 v623 a<jats:p>The study revealed a new species of <jats:italic>Polucoccum</jats:italic> colonising thallus of lichen genus <jats:italic>Lepra</jats:italic> and <jats:italic>Varicellaria</jats:italic> in tropical and temperate regions of India. The genus belonging to the family Polycoccaceae is represented by 7 species in India. Though the genus is host-specific, there are 12 genera of lichens which are home for more than one species of this fungus. It is the second known species of <jats:italic>Polucoccum</jats:italic> on members of <jats:italic>Lepra</jats:italic> and <jats:italic>Varicellaria</jats:italic>, and differs from the previously known ones – 1) <jats:italic>Polucoccum ochvarianum</jats:italic> by being gall forming and having smaller perithecia [(88-)104-128-152(−170) × (81-)95-114-133(−145) μm] and 2) <jats:italic>Polucoccum</jats:italic> sp. in having smaller perithecia [op. cit. vs. 250-300 μm], hymenial gelatine I-, and smaller asci [(50-)55-60-65(-75) × (10-)13-15-17(-18) vs. 90 × 14 μim].</jats:p>  a0236-6495, 1588-2578