838 PliycomycetBe. Chytridiaceaj, Synchytrium. 



/ffl7). parasiticum in Pythio intermed io in Anglia et Africa 

 au8trali. 



3. Pleolpidium irregulare Butl., I. c, pag. 121, t. VIII, f. 1-12. — 3211 

 Sporangiis terminalibus v, intercalaribus in matricis hypharum 

 inflationibus globosis v. oblongis nidulantibus, circ. 23 a. diam. 

 1-papiilatis; zoosporis obclavulatis apice posteriore rotundato longe 

 l-cihatis, vividc oscillantibus; sporis perdurantibus copiosis, 11-15 



\u diam., in inflationibus subglobosis hyphae matricis generatis, 

 subsphgericis, tunica flavo-brunnea, levi v. tenuiter spinulosa. 



Ifab. parasiticum in Pythio vexanti, Kew Britanni;e. — 

 Verisirailiter Chf/tridium simulans Dang. non diflert. 



4. Pleolpidium inflatum Butl. 1. c, p. 126, t. VII, f. 17-21. — Spo- 3212 

 rangiis sph.nricis, ovoideis v. piriforraibus, cura hypha valde in- 

 flata includente usque ad 85 [j.. diam., 1- v. pluripapillatis; zoo- 

 sporis copiosissimis elongatis, insequilateris, biciliatis, cilio altero 

 anterius, altero posterius positis; sporis perdurantibus non visis. 



Jldb. parasiticura in Pythio intermedio, Antibes Galli;i'. 



5. Pleolpidium Blastocladiae v. Minden, Krypt. Fl. Brandenb. V(1911 32i3 

 \i. 253. — Sporaugiis sporangia matricis iraitantibus sed minori- 



bu8 et ea substituentibus, vertice fatiscentibus et post evacuatio- 

 nem collabascentibus; zoosporis non visis; sporis perdurantibus 

 exacte globosis, exosporio brunneo dense tenuiter spinuloso, in ma- 

 tricis inflationibus ellipsoideis, basi tenuatis apice rotundatis, crasse 

 tunicatis nidulantibus. 



Hab. m Blastocladia Pringsheimii parasitice, Hamburg 

 Germaniie et in Amer. bor. (Thaxter). 



SYNCHYTRIUM De Bary — Syll. VII p. 288, IX p. 357, XI p. 247, 

 XIV p. 441, XVI p. 390, XVII p. 512. 



1. ?Synchytrium Cruciferarum Speg., Anal. Mus. Nac. Buenos Aires S2i4 

 t. XIX (1909y p. 286. — Maculis nullis ; acervulis superficialibus 

 subglobosis, 150 ;j,. diam., verruculosis, pallide flavescentibus, ner- 

 viaequiis, sparsis v. hiuc inde laxe gregariis; sporis perdurantibus 



in cellulis liypertrophicis .solitariis, globosis, 40-60 ;x. diam. ; epi- 

 sporio tenui, levi, hyalino v. leniter fumoso, endoplasmate conco- 

 loro vix nubiloso. 



Ilab. in foliis vivis Cardaminos cujusdara, Crucecita propo 

 Mendoza Araer. austr. — An oogonia Cystop. candidi in eadem 

 planta vigentis? =- 



2. ?Synchytrium abnorme Spng.. An. Mus. Nac. Buenos Airos t. XIX 3215 



