MUCORALES 



247 



profusely branched, ornamented with short, lateral, thorn-like 

 branches; sporangiophore erect, unbranched, usually tapering to 

 a swollen base, bearing a single, terminal, globose sporangium; 

 sporangial wall delicate, hyaline, not incrusted; columella 

 rounded to nearly cylindrical; zygospores borne only on the 

 thorny mycelium; suspensors not thorny, having the appearance 

 of tongs, not twining, developing the zygospore between their 

 ends. 



Fig. 84. — SpineUus macrocarpus Corda on Mycvna pradonga Peck. {Original.) 



A small genus of four or five species, parasitic on Agaricaceae 

 and other higher fungi (Fig. 84). It is incorporated in Mucor by 

 Schroter (1893: 125), but is given generic rank by Fischer (1892: 

 220) and Lendner (1908 6: 51). 



7. Sporodinia Link, in Linnaeus Species Plantarum (4 edit.) 

 6: 94, 1824; also see Tulasne {Compt. Refid. Acad. Paris 

 15:617,1855). 



syn. Syzgites Ehrenberg {Sylvae Myc. Berol, p. 25. 1818). 

 Mycelium not forming stolons, profusely developed, occasion- 

 ally septate; sporangiophores erect, abundantly septate, branch- 

 ing at the apex repeatedly in a dichotomous fashion; each branch 



