8l6 Phycomycet;p. rbytridiacea', Cladochytrium. 



1. Zygorhizidium Willei Loewentlial, 1. c, pag. 228. — Characteres 3248 



generis. 



Ilah parasitico in cellulis alg;e Cylindrocystis Brebis- 

 sonii iu Germania. 



PHYSODERMA Wallr, — Syll. VII p. 317, IX p. 363, XI p. 250, 

 XIV p. 447, XVII p. 513. 



1. Physoderma Muscarj Poirault, Bull. mens. Assoc. franc. Avanc. 3249 

 d. Sc. (1905) p. 325. — Maculis elongatis, leviter depressis, vino- 



sis dein nigricantibus; mycelio fugaci, nucleum invadente et hy- 

 pertrophiam demumque scissionem efficiente; sporangiis plurinu- 

 cleatis; hyphis dendritice ramosis forte haustorii vices ageutibus 

 (Ex Bot. Centralbl. 1906;. 



Hah. in foliis Muscari comosi in insuHs Lerins Galliae. 



2. Physoderma (Microphlyctis; polysporum Schrot. in v. Minden Krypt. 3250 

 Flora Brandenb. V, p. 409, Krieger Fungi Saxon. exs. n. 540. — 

 Sporis perdurautibus la-te flavis, subinde brunneolis, globosis vel 

 mutua pressione angulosis, 7-9 [j.. diam., innumeris, cellulas paren- 

 chymatis matricis implentibus. 



Uah. in calamis Heleocharidis palustris, in quibus ma- 

 culas atro-brunneas 1-6 mm. longas, 0,6-1 mm. latas gignit, Ko- 

 nigstein Germauiie. — A Phys. Heleocharidis sporis multo mino- 

 ribus et crebrioribus diguoscitur. i 



3. Physoderma Agrostidis Lagerheim, in Vestergr. Micr. var. n. 610. 3261 

 v. Minden iu Kryptogamenfl. Brandenb. V, p. 404. — A Physoder- \ 

 niate Cladoch ytrio) ^mmm/s sporis perdurantibus minoribus uempe 

 13-21 « 17-26 videtur dififerre; mycelio uon observato. 



Hah. in foliis, quibus maculas oblongas brunneas affert, A- 

 grostidis alba- in Suecia, 



CLADOCHYTRIUM Now. - Syll. VII p. 296, XI p. 260, XIV p. 448, 

 XVI i» 'V.Y.), XVII 514. 



1. Cladochytrium Myriophylli Rostr., Mykol. Meddelelser IX (1904) 3252 

 p. 305. cniiu icone, ct llov. mycol. ^1905^ p. 164, t. 259, f. 3-6. — 

 Nodulos 1 cm. latos in matricis caule generans; sporis perduran- 

 tibus coi^iosis in nodulis nidulantibus, ellipsoideis, rarius globulo- 

 sis, subinde globoso-polyedricis, 25-40 * 20-35, membrana 4 [i. cr. ; 

 sporangiis ejusdem maguitudinis endosporas copiosas, globulosas, 

 hyalinas, 8 |j.. diam. continentibus. 



llah in raule Myriophylli verticillati in Zelandia sept. 



