Phylum:Zygomycota >> Class: Zygomycetes >>  Order: Mucorales 
 BCRC Number 32084     32471      
 Scientific Name: Mucor genevensis

Mucor genevensis Lendner, Bull. Herb. Boissier, 2 sér. 3: 80. 1908.

 Description: Colonies gray-black, up to 4 mm in height, filling Petri dish at 20°C in 5 days; sporangiophores 2.8-7.1 μm in diam, branched monopodially or sympodially, rarely repeatedly; sporangia hyaline at first, yellow-brownish at maturity, 27.6-82.8 μm in diam, with transparent, deliquescent walls; columellae subglobose, obovoid or ellipsoidal-pyriform, hyaline to light brown, with a small collar, 15.0-20.0 × 15.0-32.5 μm; sporangiospores ellipsoidal, 2.9-3.4 × 4.9-10.0 μm (L/B=1.6-2.3); zygospores brown to blackish brown, 29.7-77.5 μm in diam, with stellate walls, suspensors equal to slightly unequal, up to 21.3 μm in diam; homothallic; growth from 5°C to 30°C, optimum growth temperature at 25°C, restricted growth at 30°C, sporulation from 10°C to 25°C.

BCRC 32471, from soil, Taiwan, Taipei.

 Habitat: soil, dung of field-mouse, dung of roe, fruit of Malus sylvestris, Triticum aestivum.

Switzerland, Ukraine, Germany, Netherlands, USA, China, Taiwan.


Ho, HM et al. 1974; Liou GY et al. 1993. Schipper, MAA 1973.


C. Y. Chien and G. Y. Liou

 Note: Most of the sporangiophores branch sympodially. There are a few repeated branches when mature. The morphology of the strain from Taiwan is similar to type strain, BCRC 32084. This species is distinguished by the sympodially branched, tall sporangiophores and homothallic zygospores.