In the southeastern United StatesC. cucurbitarumcan be a parasite (Wet Rot) of various crop plants, including summer squash (yellow crookneck) and green beans, but many other plants are infected as well (Kucharek and Simone, 1983).Choanephorahas been monographed by Mil’ko and Beljakova (1970) and Kirk (1984). (Zygomycetes.org 2005)
CHOANEPHORACurrey, 1873 (J. Linn. Soc., Bot. 13:578); 2 spp. (Kirk, 1984—monograph.).
=CunninghamiaCurrey, 1873 (J. Linn. Soc., Bot. 13:334).
=ChoanephorellaVuill., 1904 [Bull. Soc. Mycol. France 20:28;nomen nudum, Art. 41.1 of theICBN(Greuter et al., 2000)].
Choanephora(Kirk 1984) produces sporangia and zygospores that are nearly identical to those formed by species ofBlakeslea; the large and small sporangia are also formed on separate sporangiophores; small sporangia are formed in fertile heads. The small sporangia of both species ofChoanephoraare unispored and the sporangial wall lacks a suture and, as a result, the walls of the spore and unispored sporangium are not readily separable. The separation of these two walls has been reported in the literature (Thaxter 1903; Poitras 1955).
