296 ChytriiUacoas, Rliizidiani. 



sis, extra cellulain matricis, collo plus minusve elongato, orum- 

 pentibus; zoosporae circiter 5 y.. diam. • 



Hah. in parenchymate Acori Calami et Iridis pseuda- 

 cori in Oermania et Fennia. 



2. Cladochytrium elegans Nowakowski I>eitr. Kennt. Cliytr. 1S70. ki 

 tab. VI, fig. 14-17, Schroet. Krypt. Flora Schles. Pilze pag. 194. 

 — Filamentis myceHcis 2,5 y.. crassis, vesiculis fusiformibus ornu- 

 tis, zoosporangiis, apice vel sub apice e ramis mycelicis formatis, glo- 

 l)osis ovoideis, plerumque 22-37 y.. crassis, apice operculo depresso 

 oruinpentibus ; protoplasmate hyaliuo; zoosporis 7,5 u.. diam.. nu- 

 cleo crasso ornatis. 



Hah. in muco Cha^tophora' elegantis iu Germania. 



RHIZIDIUM A. Braun Ueb. Chytr. 1850, Schroet. Krypt. Fl. Schles. 

 Pilze p. 193 (Etym. a rhiza radix). — Sporangia in matrice se.s- 

 silia, e collulis duabus, inforiore sterili, superiore vero fertili con- 

 stituta. Cellula inferior basi iu filamenta radiciformia matrico im- 

 mersa producta; cellula superior in zoosporangium vel in sporaii- 

 gium perdurans se mutans. Sporangia perdurantia post aliquod tem- 

 pus germinantia et cellulam globosam germinativam, dein in zoo- 

 sporangium se mutantem formantia. 



1. Rhizidium mycophilum A. Ijraun Ueb. Cliytr. 1S5G, Schroet. Krvpt. jo 

 FJora Schles. Pilze pag. 193. — Zoosporangiis modo .subglobosis. 

 modo elongatis 40-88 i; 25, apice ostiolo papilliformi ornatis ; zon- 

 sporis globosis, 5 y- diam., sporangiis perdurantibus globosis vol 

 ellipsoidois, 15-30 y.. diam., episporio crasso, brunneo, saepius dense 

 papilligero cinctis, protoplasmate guttula oleosa, crassa pra)dito 

 farctis. 



Hah. in muco Chiietophorrc elegantis in Germania. 



2. Rhizidium Intestinum Schenk Ueb. Vork. Zell. Ptl. Zopf. zur Kennt. ,f 

 Pliycom. p. 51, tab. 8, fig. 1-15. — Zoosporangiis globosis, basi 

 vesiculam filamenta mycelica, ramosa, effusa emittentem geronti- 

 bus, dein ostiolo papilliformi ornatis; zoo.sporis globosis vel amn- 

 biformibus, nucleo oleoso et cilio simplici praelongo ornatis. 



llah. in Characeis in Germania. 



3. Rhizidium xylophilum (Cornu) Dang. in Ann. Scienc. Nat. 1880. in 

 pag. 300, t. 13, f. 6-9, Chytridium xylophHum Cornu Monogi. 

 Saprol. pag. 110. — Zoosporangiis ovoideo-acuminatis, dopressis, 

 subinde collo pra^ditis vel lagoniformibus. gregariis, oporculo ma- 

 turitalo mucoso terminatis, zoosporis sphroroideis, nucleo oleoso 



