APPENDIX VI 



699 



8. Spores unequal (mixture of numerous small spores with others twice as 

 large). (9) 



Spores approximately equal in size. (10) 



9. Sporangiophores 0.5 to 1.5 cm., straight. Sporangia 80 to 125^ diameter, 

 spores spheric or angular of diverse forms, 4 to ism diameter. 18 Af. hetero- 

 sporus Fischer. 



Sporangiophores ordinarily 3 to 4 mm. (i cm. maximum), sporangia yo/u 

 diameter as maximum. Spores oval or subcylindric 2 to 6^ by 6 to 8^. 

 Chlamydospores along the course of the sporangiferous hyphje. 19 M. 

 syhaticiis Hagem. 



Fig. 241. — Mucor Moelleri. Stages in zygospore formation. (^After Lendner.) 



Sporangiophores i cm. Sporangia 40 to 5411, wall dehiscent. 20 M. lau- 

 sannensis Lendner. 



10. Wall of sporangium not diffluent, but breaking into pieces. (11) 



Wall diffluent. (13) 



11. Spores spheric yn diameter. 21 M. corymbosus Harz. 

 Spores oval. (12) 



12 Sporangiophores frequently unbranched, chlamydospores provided with 



very fine points; azygospore formation the normal profess. 22 M. tenuis 



Bainier. 



Sporangiophores branched, chlamydospores with smooth walls, zygospores 



and azygospores. 23 M. racemosus Fresenius (Fig. 30). 

 13. Spores spheric, 3 to 3.5*1. 24 M. pusillus Lindt. 



Spores oval or elongated. (14) 



