Volume 042: Asthana,A.K. and S.C.Srivastava: Indian Hornworts. A Taxonomic Study. 1991. 49 black&white plates. 1 map. XII,230 p. gr8vo. Paper bd.

Contents (partly): Introduction/ Materials and Methods/ Anthocerotae Endlicher/ Key to the Families of Anthocerotales/ Anthocerotaceae (Gray)Trevisan em. Bharad./ Key to the Genera of Anthocerotaceae/ Anthoceros(Micheli) L. emend. Prosk. (Taxonomic characters used for species recognition/ Key to the Indian species of Anthoceros - Anthoceroscrispulus (Mont.) Douin/ A. angustus St./ A. erectus Kash./ A.bharadwajii Udar et Asthana/ A. alpinus St./ A. punctatus L./ A.macrosporus St./ A. pandei Udar et Asthana/ A. subtilis St.)/ FoliocerosBharad. (Taxonomic characters used for species recognition/ Key to the Indian species of Folioceros - Folioceros udarii Asthana et Srivastava/F. assamicus Bharad/ etc.)/ Notothylaceae Mueller/ Notothylas Sull./ Key to the Indian subgenera of Notothylas/ Notothylas subgenus Nothothylassubgen.nov./ Notothylas subgenus Notothyloides subgen.nov./ Taxonomic characters used for species recognition in Notothylas subgen.Notothyloides/ Key to the Indian species of Notothylas subgenus Notothyloides/ Phaeocerotaceae Bharad./ Key to the Genera of Phaeocerotaceae/ Phaeoceros Prosk./ etc.