HESSELTINELLA Upadhyay, 1970 (Persoonia 6:111); 1 sp. (Benny and Benjamin, 1991).

Hesseltinella forms multivesiculate sporangiophores that each produce several uniseptate stalks terminating in a vesicle that forms a single, globose, acolumellate, pedicellate, multispored sporangium covered with Cunninghamella—like spines. Although rhizoids were supposedly formed by Hesseltinella they were not observed by Benny and Benjamin (1991). Zygospores are unknown.

Type species: H. vesiculosa

Species of Hesseltinella:
H. vesiculosa Upadhyay, 1970 (Persoonia 6:111).

Stuart and Young (1987), and Benny and co-workers (Benny and Khan, 1988; Benny and Samson, 1989: Benny and Benjamin, 1991), illustrated H. vesiculosa. Hesseltinella vesiculosa is known only from a single isolate from soil (Upadhyay, 1970). Hesseltinella was included in the Radiomycetaceae (Ellis and Hesseltine, 1974).


Benny, G.L., and R.K. Benjamin. 1991 [1992]. The Radiomycetaceae (Mycorales; Zygomycetes). III. A new species of Radiomyces, and cladistic analysis and taxonomy of the family; with a discussion of the evolutionary ordinal relationships in Zygomycotina. Mycologia 83:713-735.

Benny, G.L., and S.R. Khan. 1988. The Radiomycetaceae (Mucorales; Zygomycetes). Calcium oxalate crystals on the sporangiolar wall and aerial hyphae. Scanning Microscopy 2(2):1199-1206.

Benny, G.L., and R.A. Samson. 1989. The Radiomycetaceae (Mucorales, Zygomycetes). II. Ultrastructural morphology of the mature zygospore and comparative morphology of the sporangiola and sporangiolar appendages. Mem. New York Bot. Gard. 49:11-19.

Ellis, J.J., and C.W. Hesseltine. 1974. Two new families of Mucorales. Mycologia 66:87-95.

Stuart, A., and T.W.K. Young. 1987. Morphology of the anamorph of Hesseltinella vesiculosa. Trans. Brit. Mycol. Soc. 89:392-396.

Upadhyay, H.P. 1970. Soil fungi from north-east and north Brazil—VIII. Persoonia 6:111-117.

Updated Feb 01, 2014