842 Phycomycetge. ChytridiacPte, Rhizophidinm. 



17. Synchytrium Saxifragae Rytz, Ceutralbl. f. Bakter. etc, II Abt. 3230 

 XVI 1906) p. 512. XVIII d907) p. 643, tab. extr. iig. 4. — 



A Si/nch. aureo s. str. differt praocipue verrucis rninus copiosis, 

 soris minoribus, 90-165 ]j.. diam. (in aureo 129-287 [j,.), sporangiis 

 minoribus 15-21 |j.. diam. in aui^eo 17-31 [j..). 



Ilah. in Saxifraga aizoide, S. stellari, S. moscha- 

 ta. S. audrosacea, Androsace ChameBJasme, Hut- 

 chinsia alpina. Leontodontis sp., Viola biflora, Ra- 

 nunculo montano (?) in Helvetia. 



18. Synchytrium infestans Rytz, Centralbl. f. Bakter. II .\bt. XVI II 3231 

 (1907) p. 651, fig. 6. — A Sj/nch. aureo s. str. differt prsecipue 

 verrucis ex parenchymate hyperplastico, sporis 1-4 congregatis 



nec solitariis et minoribus, 78-138 [j.. ; a S. Drdbce Liidi etiam 

 diversum. 



Hah. in Hutchinsia alpina et Thlaspi rotundifolio, 

 iu Helvetia. 



19. Synchytrium vulyatum Rytz, Centralbl. f. Bakter. II Abt. XVIII 3232 

 (1907) p. 805, fig. 8-9. — A S. aureo s. str. differt sporis mino- 

 ribus, 78-105 [j.. diam. et cellula nutrice majori quam spora. 



Hah. in Camxpanula Scheuchzeri, Phyteumate hemi- 

 sphserico, (formee in Homogyne alpina, Chrysanthemo 

 Leucanthemo var. montano), in Helvetia. 



RHIZOPHIDIUM Schenk — Syll. VII p. 298, IX p. 362, XI p. 248, 

 XIV p. 443, XVI p. 390, XVII p. 512. — Ad gen. Rhizophidium 

 sec. Petersen spectat etiam Chytridium Polysiphonice Cohn. 



1. Rhizophidium geiatinosum .1. Lind, Ann. Myc. III (1905) p. 427, c. 3233 

 ic. - Sporangiis 1-cellularibus, globosis, 20-30 [j.. diam., basi sti- 

 pitiformi brevi pr;cditis, in alga superficialibus, superne 8 anuhs 

 minutis pr;editis; anulis coUo destitutis, serius evolutis, 4-6 [j.. 

 diam , media ;i'tate papilHformibus; sporangiis strato gelatinoso 

 3 [J.. cr., obductis; rhizoidibus non observatis. 



Hab in cellulis Acr osiphoni;i' (Cladophone) pallidte in 

 Ootlaiidia Sapci;i' 'D.r Svedelius). 



2. Rhizophidium olla Petersen, Oefv. kgl. Selsk. Forhandl. n. 5 (1905). 3234 

 — Rhizina unica aciculiformi apice verisimiliter raraosa; sporan- 

 giis primuni subsph;croideis demum urceolatis; membrana crassa, 

 levi, flavidula, jodii ope immutata v. flavescenti; sporangiis oper- 

 culatis, 12-27 -^ 12-42, ceteris characteribus ignotis. 



llnh in l'ylaioIla 1 ittora 1 i , Groenlandia. 



