PhycomycetEe, Chytridiacese, Urophlyctis. 849 



SACCOMYCES Serbinow, Acta Hort. bot. Petrop. IV (1907) p. 162, 

 t. XI, f. 22-33 (Etym. saccos et myces). — Mycelium intramatri- 

 cale, haustorium breve ex sporangio enascens, distincte lobatum v. 

 vesiculosum formans; sporangia e vesica centrali enasceutia, sac- 

 ciforraia. Inter semiendogenum Rhizophidium et exogenum Poly- 

 phagum medium genus. 



1. Saccomyces Dangeardi Serbinow, 1. c, Rhizidium Euglence Dang. 3258* 

 p. p. — Sporangia 15-20 «8-10; zoosporse 2 |i. diam.; sporae per- 

 durantes 10 «x. diam. 



Hab. in cellulis quiescentibus Englenae viridis et san- 

 guinete in Rossia. 



MACROCHYTRIUM v. Minden, in Centralbl. Bakter. II Abt., VIII 

 (1902) p. 824 (Etym. macros magnus et chytrion urceolus, ob spo- 

 rangia majuscula). — Sporangia solitaria, ratione magna, contentu 

 hyalino, basi septata et rhizoidibus fasciculatis ramulosis prsedita 

 vertice operculo convexo dehiscentia. Zoospor;Te innumene, globu- 

 losie, guttulatsB, apice uno longe ciliatae. Sporae perdurantes ignotae 



1. Macrochytrium botryoides v. Minden, 1. c et in Krypt. Fl. Brand. 3259 

 V, p. 364, fig. 30 et p. 386. — Characteres generis; sporangia 

 circ. 900 « 7B0, verticaliter ellipsoidea. 



Hah. in fructibus variis putrescentibus, imprimis Piri Mali, 

 diu aqua immersis, Breslau, Hamburg Germanise. 



UROPHLYCTIS Schrot. — Syll. VII p. 303, XVH p. 515. 



1. Urophlyctis punctiformis Spegazz., An. Mus. Nac. Buenos Aires 3260 

 t. XIX (1909) pag. 284, — Verruculis subglobosis, 250 jj.. diam., 

 amphigenis, fere totum folium occupautibus sed semper separatis 



et distinctis, levibus; sporis e fronte discoideis, 75-100 |j-. diam. e 

 latere sublenticularibus 50 ij.. cr., fuligineis, levibus, gattulis oleosis 

 aurantiis foetis. 



Hah. in foliis vivis Hy pochieridis variabilis et Pi- 

 crosi.e longifolice, La Plata Amer. austr. — Verruculis non 

 coniluentibus minutis regularibus distincta. 



2. Urophlyctis Magnusiana Nnger, Ann. Mycol. IV (1906) p. 280. — 3261 

 Taberculis 0,3 mm. diam., globulosis, acervulatis, raro sparsis ; 

 sporis perdurantibus stepius copiosissimis, supra 100, raro tantum 

 20-30, pro more cellulam singulam implentibus, hemisph.cricis, 

 brunneo-flavis, 38-40 |j.. diam., tubulis eorum partera piauaui cum 

 celluia hyaliua conjuugentibus. non raris. 



iSyll. fung. XXI (11-1912) 54 



