S70 PjTenomyoeteK, Perisporiaceee, EiyBiphe. I 



ERYSIPHE Hedw. — Sacc. Syll. I, p. 15. 



1. Erysiphe trina Harkn. New Calif. Fungi pag. 21. — Epiphylla; 1568 

 inycelio raaculas orbiculares tegente , pruiuoso, fugaci ; perithe- 



ciis aijgregatis, rainutis flavo-brunDeis, 56-70 a. diara., appcndici* 

 bus uallis; ascis 3, subglobulosis, 32-38 a. diam.; sporidiis 2, ob- 

 longo-ellipsoideis vel ssepe navicularibus, latis. 



Jlab. \n folii vivis Quercus agrifolia? in California 



2. Erysiphe Popull Pat. Journ. Bot. 1888, p. 217 cum icon. — My- 1569 

 celio teuaci, maculas albas efformante; peritheciis globosis, primo 

 luteis, dein nigris, 130 a. diam.; a[tpendicibus numerosis, hyalinis, 

 radiantibus, simplicibus, rectis, longitudiQe diametrum penthecii 

 sequantibus; ascis subglobosis, 60^50, stipitatis, 8-12 in quoque 

 perithecio, 6-8-sporis; sporidiis ovoideis, hyalinis, 25^8-10, api- 

 cibus obtusis. 



JJab. iu pagina superiori foliorum Populi Treraulas, Yun- 

 nan Sinarum (Delavay). 



3. Erysiphe Saxaouli Sorok. Rev. Myc. 1889, p. 146, f. 231-236. — isro 

 Mycelio ramoso, subverrucoso, haustoriis instructo ; poritheciis ro- 

 tundis, brunneis, subnigris; ascis raaturis non visis, immaturis 50- 

 52^:22-21, in quoque perithecio circ. 10; sporidiis oblongis, brun- 

 neolis v. griseis, binis v. quaternis; conidiis elongatis, ex apicG 

 basim versus attenuatis, in hypharum apice solitariis, 1 1-13 u. long., 

 11-13 u: lat. 



Ilab. ad ramulos virides H aloxyli .^mraodendri [SaxaoiU), 

 Kisyl-Koura Asise centr. 



4. Erysiphe vitigera Cooke et Mass. Grevill. voK XV, p. 98. — Hy- 1571 

 pophylla; raycelio floccoso, persistente, peritheciis gregariis, minu- 

 tissirais 400 :/. diam,, sphsaroideis ; appendicibus obsoletis vel cura 

 mycelio intertextis; ascis piriformibus, 4 in singulo perithecio, 

 50^:30, bisporis; sporidiis ellipticis, hyalinis, 18cs9. 



Hab. in foliis Vitis viniferse, cui valde noxia, prope Mel- 

 bourne Australifc. — Er. lamprocarpcc affinis. St. conidicus ab 

 Oidio Tuckeri dfferre videtur. 



5. Eryslphe sepulta Kll. et Everh. Bot. Gaz. 1889, n. 11, p. 286. 1572 



Ilab. ad folia et caules Bigelovite graveolentis var, al- 

 bicantis, Heiena Amer bor. — E. Cichoriacearum admodum 

 affinis, ab ea tatum diff^ert peritheciis in matricis pilis nidulantibus. 



6. Erysiphe armata Sorok. Rev. xMyc. 1880, p. 146, f. 105-203. — 1573 

 Mycelio ramoso; peritheciis brunneis, basi appendicibus simplicibus 



