APPENDIX VI 



701 



8. Columella spinescent. (9) 

 Columella smooth. (10) 



9. Sporangiophores never exceeding 2 mm., sporangia 60 to 80/1, spores smooth 

 7 to 8m. 37 M. spinescens Lendner. 



Sporangiophores over i' cm. and more tall, spores frequently punctate, 

 5 to 8ii. 38 M. ptumbeus Bonorden. 



9." ° 



Fig. 242. — Mucor lamprosporus . o, b, t, Columella; d, sporangiole; e, sporangium; 

 /, branched sporangiophore. (After Lendner.) 



Sporangia 75 to 120M, columella piriform or campanulate, spores 4 to 8^ 



diameter. 39 M. globosus Fischer. 



Sporangia ordinarily smaller (iiom maximum), columella spheric, oval or 



campanulate. Spores larger lo/i (mean). Species with sporangioles near 



the substratum. (11) 



Sporangia 70 to iiom diameter, sporangioles not caducous, spores spheric, 



shining, loya. 40 M. sphmrosporus Hagem. 



Sporangia never exceeding 80 to go^, spores lOfi. 



