PhycomycetfE, Chytridiacea?, Eurychasma. 843 



3. Rhizophidium distinctum H. E. Petersen, Oefv. kgl. Yid. Selsk. For- 823B 

 handl. n. 5 (1905j p. 484, cum icon. — Sporangiis sph;eroideis 



V. hemisphfericis et basi depressis, 8-30 a diam. ; membrana ple- 

 rumque crassa 1-2 [j.. v. ultra, quandoque pluries stratosa, stratu 

 externo jodii ope flavescenti; zoosporis 1-5 |j.. cr. ; ostiolis regu- 

 laribus. insequaliter sparsis, sine operculo. 



Hah. exemplaria minora in Spongomorpha vernali in 

 Dania, rnajora in Acrosiphonia incurva in Norvegia. 



4. Rhizophidium septocarpoides H. E. Peters., Ann. Myc. VHI (1910) 8286 

 p. 552^ fig. 24 d. — Zoosporangiis brevissime pedunculatis, piri- 

 formibus, parte basali angustiori, membrana hyalina, levi munita, 

 8-16 IX. longis, mycelio intramatricali parce ramoso; ceteris cha- 

 racteribus iguotis. 



Hdb. in Closteriis in lacu Sorte So Danise. 

 6. Rhizophidium minutum Atkins., Botan. Gazette XLVIII (1909) 3237 

 p. 328, cum icou. — Zoosporangiis obpiriformibus, 5-6 a. latis, 

 apice papilla lata praeditis, basi filamentis brevibus radiciformibus 

 munitis; zoosporis ovoideis, 2,5 [i. diam., uniguttulatis, cilio sim- 

 plici attenuato auctis. 



Hab. in Spirogyra varianti pr. Ithaca N. Y. Amer. bor. 



6. Rhizophidium brevipes .\tkins., Botan. Gazette XLYIII il909; ^238 

 p. 325, cum icon. — Zoosporangiis ovoideis 21-24 [j.. diam.,apice 

 pori loco papillatis ; apparatu rhizoideo rudimentali, ex tubulis 

 simplicibus brevibus obtusis constituto; zoosporis ovoideis, unigut- 

 tulatis, uniciliatis, 3 [j.. diam. 



Hab. in tunica gametangii Spirogyrae variantis prope 

 Ithaca IST. Y. Amer. bor. 



7. Rhizophidium carpophilum Zopl, Nova Acta Acad. Leop. XLYII ^239 

 (1885) p. 200, t. IX, f. 8-16. — Sporangiis Sicpius pluribus, in 

 celluia matricis sessilibus, globosis, tenuiter tuuicatis, maturis lato 

 foramine apertis et tunc disciformibus, ramis usque ad 20[j,. diam., 

 2-40 zoosporas continentibus, basi rhizoidibus in oosphseram cel- 

 lulse nutricis penetrantibus, ramulosis pneditis; zoosporis globoso- 

 ellipsoideis, 4-5 [j.. diam., longe 1-ciliatis, excentrice grosse 1-gut- 

 tatis; sporis perdurantibus ignotis. 



Hah. in oogoniis Saprol egn i.i- ferocis, S. asteropho- 

 rcie, AchlyiB poIyandr;e, Hamburg, Halle Germani;r. 



EURYCHASI\«A P. Magn., Hedwigia XLIY (1905 1 p. 348, H. E. Pe- 

 tersen, Oofv. kgl. Dansko Yid. Solsk. Forhandl. (1905i n. 5, p. 469 



