362 Phycomyceteae, Chytridiacese, Olpidiopsia. 



tenul hyalina vel subhyalina levi, cootentu achroo, sine coUo vel 

 collo brevi praditis, singulis pluribusve in cellula nutricis consocia- 

 tis; zoosporangiis perdurantibus. globosis, merabraua crassa achroa 

 levi instructis, 16 ^. diarn. ; zoosporis 3-4 p.. diaru. 



Hab. in uredosporis Uredinis Arije, Puccinia? Violae et 

 P. Rhamni, Freiburg et Miinchen GerraaQiie. 



APHANISTIS Sorok. Ciiytrid. p. 33, Rev. Myc. 188y, p. 137 (Ab a 

 non et phane^-os manifestusj. — Zoosporangia sphaeroidea, coUo 

 destituta v. collo vix papilliformi, raro dupHci instructa ; zoosporae 

 uniciliata}, sphaeroidecT. Mycelium e filamento simplici vel ramoso, 

 crasso, septatp, cellulas omnes QEdogoniorum percurrente et tan- 

 tum in oogoniis in zoosporangia inflato, eflorraatum. 



1. Aphanistls (Edogoniorum Sorok. 1. c. pag. 33, fig. 43. — Mycelio i5.?i 

 simplici, septato,- zoosporaugiis priraa aetate ovoideis, una extremi- 

 tate attenuatis, dein sphceroideis, demura ad ostiolum oogonii acu- 

 tatis; zoosporis spha^roideis, uniciliatis. 



Ilab. in (Edogoniis, Tachkeud Asiae centr. et Kazan Rossia}. 1532 



2. Aphanistis? peliucida Sorok. 1. c. p. 34, f. 44. — Zoosporangiis 

 pellucidis, collo acuminato parietem matricis perforante; mycelio 

 brevi, septato ; zoosporis non visis. 



Ilal/. iii ffid ogon i is juvenilibus, Tachkead Asiae centralis. 



RHI20PHIDIUM Scheuk. — Syll. VII, 1, p. 298. 



1. Rhizophldium Dicksonii Wright in Trans. R. Irish Acad., 1877, 153.1 

 p. 20, t. Ill, Bot. Jahr. 1877, p. 157. — Unicellulare, primo exacte 

 globosum, dein irregulare, Scepe oblongum ; zoosporis per poros 

 singulum vel binos exsilientibus, numerosis. 



Hai'. in cellulis Ectocarpi granulosi in Britannia. 



2. Rhizophidlum Scladii Zopf in Akad. Halle 1887 et Just Jahresb. VoM 

 1887, p. 535. — Hab. in Sciadio Arbuscula in Gerraania. 



3. Rhizophidium CyclotellaB Zopf 1. c. — Ilab. in Cyclotella, Gerra. 1535 



4. Rhizophidium sphaerotheca Zopf 1. c. — Hab, in raicrosporis Isoo- 1536 

 tes in Germania. 



OLPIDIOPSIS Cornu. - Syll. VII, l, p. 299. 



l. Oipidiopsis Sorokinel De Wild. Chytr. Belg. p. 22, c. ic. Olpt- 15,37 

 diopsis fusiformis var. (Edogonioruyn Sorok. .'\per(:!. Chytr. Russ. 

 p. 27. — Zoosporangiis elongatis iuaequalibus, celiulam matricis 

 subimplentibus et denticulo adhierentibus; zoosporis minutissimis. 



