278 



Diam. altitudini (V210 — l jiao'" exceptis papilla et radicella) aequalis 

 vel paulo minor (ad 6 /0; specimina minima x Uho'" \ processus ^/itso — 

 V900'" altus, Vooo — l /bw'" latus. 



b. forma equitans Lacost. et Suring. (1. c), radicellis duobus trans- 

 versis. 



Hab. in Ulothricis filis, Conferva rhypophila, Oedogonio, Bulbochaete 

 setigera et in Gomphonematis stipitibus Hollandiae. 



Ch. Lagenaria Schenk (Verhandl. der phys. -med. Gesellschaft zu 

 Wiirzburg VIII. p. 241. Contract. Zell. p. 5. F. 11—15.). Ch. soli- 

 tarium , initio globosum , postea urceolatum , operculo subplano ; ore 

 amplo, regulari, basi radiculis distinctis. v. ic. 



Hab. in Nitella flexili, prope Wurceburgum detexit cl. autor. 



Ch. Polysiphoniae Cohn (in Hedwigia 1865. p. 170. Schulze's 

 Archiv f. mikr. Anatomie. III. T. II. F. 2.). Ch. entophytum, soli- 

 tarium , saepius sociale , subglobosum vel subangulatum , basi plana 

 appressum, zoosporiferum membrana nigrescente circumdatum , oper- 

 culo orbiculari circumscisso apertum, radiculis nullis. 



Diam. usque ad 0,00135" = %"'. 



Hab. in Polysiphonia violacea, Chordam Filum habitante, in mari 

 prope rupes occidentales insulae Helgoland, ubi mense Sept. 1865 

 detexit cl. Ferd. Cohn. 



V. Plllyctiflilllll A. Braun (1856): Cellula globosa vel 

 oblonga, non operculata, ore simplici, vel non vel paullum pro- 

 ducto , substrato superficialiter insidens , aut non radicata aut radicula 

 tenuissima aciculari penetrante instructa. 



Zoogonidia globosa , raro suboblonga, cilium unicum zoogonidio 

 3 — 5-plo longius gerentia. 



a. Formae globosae vel subglobosae. 



f Kiiiliciila iiullii. 



P. vagans A. Braun (Monatsb. der k. Akad. der Wiss. zu Berlin. 

 1856. p. 588. N. 5. Chytridium Pollinis Pini A. Braun 1. c. 1855. 

 p. 381. N. 9. Chytrid. p. 40. N. 8. T. III. F, 1—15.). P. cellula 

 globosa , subpachydermatica , basi lata insidente, guttam oleosam niten- 

 tem aetate provecta evanidam continente; ore verticali ampliatosubregulari. 



Diam. cell. minim. 0.00019 — 0,00026" = v ih»— l ; :m'", maxim. 

 0,00078 — 0,00097" = Vus-* 1 /**" 



Hab. in polline Pini sub aqua, in Conferva bombycina prope „Neu- 

 damm" detexit cl. Itzigsohn. 



