304 Chytridiaceae, Chytridium. 



rosis, juYentute filauienlo celluhc uiatiicl^ aflluereutilm.s, iu cellu- 

 lis itarvis copuiatiouis sessilibu.s uiaturitato rotumlatis o latere 

 plus niiuusve depressis, 35-38 u.. diaui., menibrana castanoo-bruu- 

 iiea, levi cinctis. 



llab. in foliis, caulibus et iu porigouiis Chenopod iacear um 

 li. 0. Cljenopodii glauci, C. rubri, C. cubici et Atripli- 

 c i 8 p a tu 1 Je in Geruuinia. 



REESSIA ImscIi. Beitr. Kennt. Cliytr. (Etyiu. cl. botanico M. Rrkss 

 genus dicatum). — Zoosporaugia intra cellulam niatricis sita. Zoo- 

 sporangia farcta, iu collum longiusculutu producta. Zoosporfe p(?r 

 paria copulantes et sporam perdurantem, per zoosporas germi- 

 nanteni, genorantes. 



1. Reessia am(Bboidea Fisch. 1. c — Characteres generis. i' 



Ilab. in cellulis Lemn;e minoris et L. polyrrhiza' pr. 

 Erlangen. — Celluho fungillo occupatai dealbantur. 



CHYTRIDIUM A. Braun Betractung. Ersch. Verjiing. Nat. 1850, Schroe- 

 tcr Krypt. Fl. Schles. Pilze p. 102 (Etym. a chi/lrion ollula). — 

 Zoosporangia sessilia in cellula matricis, basi in pedunculum raili- 

 ciformem, a sporangio septo divisum, iu cellulam matricis pene- 

 trantem, attenuata, operculo acute limitato, erumpentia. Zoospone 

 globosDB uniciliatai. Cilium simplex. Sporae perdurantes intra cel- 

 lulam matricis format;e. 



1. Chytridium EpithemiaB Now. Beitr. Kennt. Chytr. p. 101, tab. IV, ^ 

 lig. 12-13, Schroet. Krypt. Fl. Schles. Pilze p. 103. — Zoosporaii- 

 giis superne globosis, 12 y.. diam., membrana crassiuscula, hyalina 

 cinctis, biostiolatis, oporculis couvexis, orhicularibus dein dilaboii- 

 tibus ornatis, basi napiformibus, in pedunculum tenuem desinenli- 

 bus; zoosporis paucis. 



Uab. in Epithemiis in Germania. 



2. Chytridium Olla Braun Ueb. Chytr. 1851, Schroeter Krypt. FI. ' 

 Schles. PilzB p. 102. — Zoosporangiis sessilibus, ovoideis, apice 

 attcnuatis, 25-52 et usque 00 a. longis, 20-23 y.. latis, apice oper- 

 culo conoideo-applanato, obtuse umliilicato dein dilabente perlusis, 

 basi pedunculo simplici, 10-12 y. crasso, urceolato, matrice immer- 

 so; protoplasmate hyalino farctis; zoospora globosa , 3-4 y.. diani. ; 

 sporangiis perdurantibus globosis, protoj^lasinate guttula crassa, 

 oleosa ornato. 



