256 l'ei'ono?iporacefe, Pt-ronospora. 



ceis; oo.sporis uiagnis, ;5U-U8 ;/. diani., la^tefirunneis, episporio cras- 

 so, levi. 



Ilab. in pagina inferiore folioruni Veronicpe serpyUifo- 

 1 i rc, V. scutullata^ V. arvensis, Y, verna.\V. triphyUai 

 Y. Heccabungai V. hederifolia^ et V. A iiaga llidis in Ita- 

 lia, Gallia, Gerniania. Anglia, Fennia, Belgio, Neerlandia et Hosnia 

 in America boreali. — • u Cfcspitibus densis, iutricatis, griseo-viola- 

 sceutibus, paginaui inferiorem rolioruin occupantibus, dignoscenda». 



37. Peronospora Lamii (Al. Braun.) De Bary in Rabenh. Herb. Myc. ^^'^ 

 edit. 11, n. 325, Fuck. Fung. Rhen. n. 30. — Hyphis conidiopho- 

 ris brevibus, o-7-ies (plerumque 6-ies) dichotomis caespites densos 

 griseo-violaceos formantibus; ramis sensim attenuatis, patentibus. 

 phis minus arcuatis, ulliniis plerumque elongatis, subulatis, acutis,- 

 conidiis conspicue pedicellatis, globoso-ovoideis, 17-22 ^ 15-20, di- 

 lute et sordide violascentibus; oosporis parvis, fuscis. 



Uab. in foliisLamii rubri, L. macu 1 at i, L. alb i, L. pur- 

 purei, L. am plexicaul i, Salvia^ pratensis, Stachydis 

 palustris in Italia, Germania, Fennia, Britannia, Gallia. — (( Au 

 huc Peronospora Calaminthca Fuck. ducenda??) 



38. Peronospora effusa (Grev.) Rabenh. llerb. Myc. 1880, IJotri/l/^ % 

 c/1'itsa Grev. Fl. Fdin. p. 168, lJo(r>/lis fhrinosa Fr. Syst. Myc. ? 

 JiOlrjjtis epiphnlla Pers. Myc. cur. I, p. 5(5? Peronospora Chc- 

 nopodii Schlecht. Bot. Zeit. 1852, p. 619, P. Chenopodii Casp. 

 Bot. Zeit. 1854, p. 565. — Hyphis conidiophoris fasciculatis, e sto- 

 matibus egiedientibus, brevibus, crassis, superne 2-5 6-ies raro 

 7-ies dichotomis; ramis ultimis crassis, breviter subulatis, arcua- 

 tirn deflexis; conidiis ellipsoideis. 22-30 ;; 16-23, conspicue pedicel- 

 latis, sordide et dilute violaceis; oogoniis magnitudine variis ; oospo- 

 ris sphairoideis, 26-35 y.. diam., episporio la^te fusco irregulariter 

 sulcato pneditis. 



Ilab. in foliis Chenopodii albi, C. muralis, C. glauci, 

 C. polyspermi, C. hybridi. Spinacia? oleraceje, Bliti 

 B n i - II e n r i c i , A t r i p I i c i s p a t u 1 a?, A. n i t e n t i s, A. h a s t a- 

 ta.', A. rosea), Polygoni Convolvuli in Belgio, Gallia, Ger- 

 mania, Fennia, Anglia, Lapponia, Italia, Austria et Amer. bor. — 

 Nonnullse adsunt varietates: y.. minor ramis multo angustioribus, 

 gracilioribus, erecto-patentibus, ultimis subnlatis, subsquarrosis, 

 rectis vel vix curvatis nou detlexis; zoosporangiis globoso-ovoi- 

 deis, pedicello vix conspicuo. In Atriplice in Fennia et Lappo- 

 uia rossica (Karsten). — jS. Viohr \n Viola t r icolore var. ar- 



