282 



Diam. max. 0,00089" = Vioo'". 



Hab. in terra humosa vasium floralium Friburgi Brisgoviensis, vere 

 anni 1862 detexerunt cl. A. de Bary et Woronin. 



Species accuratias inquirendae. 



Chytridium depressum Pringsh. (in A. Braun iiber Chytridium in 

 Monatsb. 1855. p. 383. N. 15. Chytiid. p. 46. N. 15. T. IV. F. 7.). 

 Ch. depressum, subhemisphaericum, basi lata insidens, */m nim. == 754"' 

 crassum, medio prominentia saepe in rostrum curvum elongata instructum. 



In Coleochaete prostrata (nov. spec.) , ad Berolinum detexit cl, 

 Pringsheim. 



Chytridium decipiens A. Braun (in Monatsb. 1855. p. 383. N. 17. 

 Chytrid. p. 54. N. 19. T. V. F. 1 — 4.). Ch. entophytum, subhemi- 

 sphaericum, ad '/24 mm. = ^jhi 4 " crassum. 



Hab. in Oedogonii oosporangiis, prope Berolinum (Pringsheim), ad 

 Friburgum Brisgoviense (A. Braun). 



Chytridium entosphaericum Cohn (in Hedwigia 1865. p. 170 in 

 Schultze's Archiv III. p. 43. T. II. F. 5.). Ch. cellulis globosis, albis, 

 singulis in singula Algae cujusdam marinae cellula evolutis; zoosporis? 

 membranam cellulae hospitalis extrinsecus perforantibus , intra lumen 

 ejus germinantibus, enecatamque vel partim vel totam explentibus. n. v. 



Diam. fere 0,00068" = l /i 3 o'". 



In intimis cellulis Bangiae fuscopurpureae nec non Hormidii peni- 

 cilliformis Ktz., ad palos plagam insulae Helgoland protegentes crescen- 

 tium, alto fluctu tantum humectatorum. 



O. Olpidilllll A. Braun (1856): Cellula globosa vel sub- 

 globosa, parasitica, epi- vel ento-phyta, nec operculata, nec radicata, 

 ore verticali, in tubulum cylindricum, quasi inmissum elongato. 



a. Extra plantam nutricem. 



0. ampullaceum (Cliytridium [SphaerostylidiumJ ampullaceum A.. Braun 

 in Monatsb. 1855. 384. N. 21. Chytrid. p. 66. N. 23. T. V. F. 24—27. 

 Lacost. et Suring. in Nederl. Kr. Archief. V. 2. p. 279.). 0. epiphytum ? 

 gregarium , globosum , minimum , sessile , rarius pedicellatum , tubulo 

 erecto , cylindrico , ad ipsam cellulam longitudine , in apiculum conicum 

 desinente. v. v. 



Diam. cellul. 0,000260" = '/342'". 





