164 



PHYCOMTCETEAE 



Fig. 57. Mucoralcs, Family Mucoraceae. (A) Absidia septata van Tiegh. & 

 Le Monnier, sporangiophores and zygospore. (B) Absidia glauca Hagem, mature 

 zygospore. (C-D) Circinella minor Lendner. (C) Unopened sporangia. (D) Opened 

 sporangia showing columella. (Ej Circinella umbellata van Tiegh. & Le Monnier, 

 zygospore. (F-G) Sporodinia grandis Link. (F) Dichotomously branched sporangio- 

 phore. (G) Zygospore. (H-J) Phycomyces microsporus van Tiegh., stages in formation 

 of zygospore. (A-F, after Lendner: Beitr. Kryplogamenflora Schweiz, 3(1):103, 104, 

 110, 134, 137. G, after Ling- Young: Rev. gin. botan., 42(496) :206. H-J, after Christen- 

 berry, J. Elisha Mitchell Sci. Soc, 56(2):332-366.) 



