Poronopporacere, I^oronospora. .M5 



niosa;. Uaniiili tenninalos plernmquo acuto-incnrvi vel uucinato- 

 subulati. Conidia ovata v. elliptica, papilla apice destituta, latera- 

 liter £?enninanlia. 



Calothecic I)o P.ary. — Oosporro globosa}, episporio verrnonso vel retieii- 

 lato-plioato tecta\ Mycoliuni plernnirine liaustoria (ilirormia, rainosa tubos- 

 (luo torotes prrohot. 



Peronospora caiotheca I)a Barv sur le drv. des Champ. par. p. 111. ^^~ 

 n. 0, p. Galii Fuck. l''ungi rhen. ii. 2S, l\ S/ierardw^ Fuck. ihid. 

 — Ilyphis conidiophoris gracilihus, 7-9-ies dichotomis; ramis pri- 

 niariis oblique erectis, ceteris omnihus patentissimis, squarrosis, 

 gracilihus, ultimis angustissimis, pa-^nultimis multo brevioribus, re- 

 ctis vel subarcuatis; conidiis ellipsoideis, 24-;i0 :; 15-17, utrinquo 

 rotundato-obtusis, dilutissime violaceis; oosporis glohosis, epispo- 

 rio valido, badio, cristis tenuibus, connexis minute reticulato. 



]{ab. in foliis Galii Aparines, G. borealis, G. Mollu- 

 ginis, G. palustris, (>. veri, G. Schultesii et G. silvati- 

 ci, Asperula^ odorat?n et Sherardia> arvensis in Italia. 

 Gallia, Hritannia, IJelgio et Germania, inque America boreali. 

 Peronospora Myosotidis De Barv Rech. sur le dev. in Ann. Sc. sis 

 -\at. ISO.J, S(''r. ,1, t. XX, p. 112, Rabenh. Fung. Eur. n. 572. — 

 Ilyphis conidiophoris gracilibus, elatis, plerumque hinis e stomate 

 egredientibus, regulariter 6-9-ies dichotomis, ramis omnibus squar- 

 roso-patentibus, ultimis angustissimis; conidiis ovoideis, utrinque 

 obtusissimis, parvulis, 20-23^13-18, membrana tenui vix viola- 

 scente ; oosporis sphaeroideis, 24-30 y.. diam., episporio valido, Ia;te 

 luteo-fusco, cristis crassis acutiusculis, elevatis regulariter grosse 

 et late reticulato munitis. 



Ifab. \n foliis Myosotidis intermedia^ M. vernio, M. 

 Y ers i co loris, M. arvensis, M. hispidae, M. sparsiflo- 

 r?e, Umphalodis scorpioidis, Symphyti officinalis, S. 

 tuberosi, Lithosperrai arvensis in Italia, Germania. Rol- 

 gio, Gallia, Anglia, Ilelvetia, Lapponia et in America boreali. 

 Peronospora Viciae (Berk.) De Bary Rech. sur le dov. in Ann. Sc. si-.) 

 Nat. 1803, 4 scr. t. XX, p. 112, liedw. 1864, n. 9, p. 135, Bo- 

 tri/tis Vicifc Berk. Journ. Ilort. Soc. 1, 31, Peronospora efjusa 

 var. intermedia Caspary in Rabenh. llerb. Myc. ed. II, n. 490. — 

 Ilyphis conidiophoris dense ca-^spitosis, rectis, a^^qualiter, rarius in.o- 

 qualiter, 6-7-S-ies dichotomis; ramis ordiuum superiorum squarro- 

 so-rigidis, ultimis breviter subulatis acutis, rectis; conidiis ellipsoi- 



