ZYGOMYCETES 



341 



De Bary ('Comp. Morph.,' p. 156) treats the incompletely known 

 Dimargaris and Dispira, both of Van Tieghem, as at present doubtful 

 jMucorini, probably near Piptocephalidese. Another small group of 

 genera of doubtful position is formed by Kickxella (Coem.), Martensella 



Fig. 296. — P. Freseniana. M, a mycelial tube of Mucor Mtecedo, the host of Pipto- 

 cephalis. The mj-cele of the latter, in, penetrates M by haustoria, h. Z, zj'gosperm. 

 c, sporophore (x 300, the rest x 630). (After Brefeld.) 



(Coem.), Coemansia (Van Tiegh. and Le Mon.); while Sorokin's Zygo- 

 chytrium, an aquatic saprophyte on dead insects, the account of which 

 needs confirmation, stands in a like uncertain position. 



Literature. 



Bainier — Observ. sur les Mucorinees et sur les zygospores des Mucorinees (Ann. Sc. 



Nat., 6 ser. , Tom. xv. , 1S83 ). 

 De Bary unci Woronin — Beitr. zur Morph. u. Physiol, der Pilze, i. and ii. 

 Brefeld — Bot. Unters. liber Schimnielpilze, i- and iv. 



