P. Raghuveer Rao

THE GENUS PERICONIA FROM INDIA.

Totally 20 species ofPericonia have been studied, of whichP. ellisii, P. hyderabadensis, P. indica, P. masonii, P. pseudohispidula, P. scrobiculata, P. simplex, P. stilbacearum, P. torulosa, P. warticulata, andP. yadagirensis are new, remaining reported for the first time from these parts. The discussion includes comments on the distribution, nature of colonies, fertility of stipes, their arrangement in colonies and its application in taxonomy. Variation in sporoderm is treated.P. parasitica Tilak,P. ipomoeae &P. xanthicola Vasant Rao are treated conspecific withP. byssoides Pers. exSchweinitz, pending the establishment of their parasitism. An improvised and comprehensive key for 28 species ofPericonia known so far from India is proposed.

Sporoschisma Berk. & Br. from India

Till 1947 the genus Sporoschisma BERK. & BR., was known to comprise of eight species and two varieties, among which some of them were Cyanophycean members! The excellent review of HUGHES (1949) on Sporoschisma clarified many characters and its affinities with Chalara CORD& who concluded that they are significantly different and the latter can be differentiated from the former in the production of Phaeophragmospores endogenously from flask-shaped conidiophores, immixed with sterile, capitate, erect setae. Our present knowledge of this genus is confined to four species viz., S. mirable, the type, S. insigne SAGe. Rouss. & BOMM. apnd BOMMER & ROUSSEAU., S. saccardoi MASON & HUGHES and S. juvenile BOVCDIER. S. insigne produces hyaline comdJa and colonies without sterile setae, the characters of which are very near to those of Chalara, although phr~mospores produced from deep brown, swollen conidiophores are not known in the same. As such HUGHES concluded to regard this as a species of Sporoschisma only, till any variation in conidia of Chalara is known. In this communication a new species of Sporoschisma is described, collected by the authors during their s tudy on Hyphomycetes of Hyderabad. Evidently this fungus is not only recorded for the first time from India but also an addition to the known species.

Some Helicosporae from hyderabad-I

In this paper new species ofHelicoma, Troposporella andHelicoceros, viz.,H. narsapurense, T. hyalospora, H. indicum respectively have been reported. A new genusMoorella withM. speciosa as type is described.

‘Kumanasamuha’ a new genus of dematiaceae

“Kumanasamuha” a new genus of Dematiaceae is described, collected growing as saprophyte on unidentified wood, from Pakhal forest, withK. sundara as type.

Some species ofCamposporium Harkn. from India

Camposporium indicum, C. hyderabadense andC. microsporum are described as new species. They were collected from dry leaves ofBorassus flabellifer L. A key to the Indian species of the genusCamposporium is given.

BERKLEASMIUM ZOBEL FROM INDIA.

Berkleasmium papillatum andB. Osmaniae are described new, and this fungus is recorded for the first time from India.

Barnettella — A new member of Melanconiaceae

Barnettella — an interesting new fungus of Melanconiaceae — withB. speciosa as type has been described, collected as saprophyte on culms of unidentified grass from Hyderabad.

Some allied dematiaceae-dictyosporae from India

In this paperTetracoccosporium andDictyoarthrinium are treated.T. cupulatum, D. lilliputeum andD. microsporum are described new, apart from the typeD. sacchari. A key to the known species ofDictyoarthrinium is proposed.Tetracoccosporium, is a maiden report for India.

‘Vrikshopama’, a new genus of Stilbaceae

In this paperVrikshopama a new genus of Stilbaceae withV. swetasakha as type is described, which is characterised by the production of ramosely branched conidiophores, the ultimate branches of which are fertile, cutting off one-celled, subhyaline, cylindrical conidia acropleurogenously.

‘Diplorhinotrichum’ Hohn., from India

HOEHNEL (1902) described Diplorhinotrichum, a Moniliaceous fungus producing hyalodidymospores on denticulate projections borne apically on simple, hyaline conidiophores with D. candidulum as type. SACCARDO (1931) compiled two more species viz., D. a//ine ROSTRUP., and D. olivaceum JAAP., Of which the latter was described to be dubious (An genuinum Diplorhinotrichum?). HUGHES (1951) described D. a/ricanum and the type, while studying Microfungi from Gold Coast. TUBAKI (1958) added another species D. ampulli/orme, from Japan. During our studies on Hyphomycetes of Hyderabad, a Diplorhi4¢otrichum was collected, and found to be undescribed so far, hence is reported new as D./uscum. Obviously this fungus is recorded for the first time from India.