608 Deuteromycetse, DematiacejK, ScolecosporEe, Cercospora. 



— Initio in maculis indefinitis pallide luteis insita, epiphylla, 

 dein totum folium occupans, stratoque subtili griseo obducens; 

 hyphis cEespitosis 15-20 « 3, subnodulosis, continuis vel parce se- 

 ptatis, apice obtusis, subolivaceis ; conidiis tenuibus, obclavatis 

 subolivaceis, curvulis, 50-80 « 2,5-3, leviter 3-5-septatis. A< 



Hdb. in foliis Hieracii venosi, Alabama AraericsB bor. 



64. Cercospora RatibidsB Ell. et Barth. in Journ. of Mycol. 1902, 5562 ^ 

 p, 177. — Maculis isabellino-brunneis, centro albis, 2-4 mm. lat., 

 amphigenis; c:fispitulis minutis, punctiformibus; hyphis sparsis, 

 subundulatis, continuis, luteo-brunneis, 30-40 >i 4-4,5 (basi), superne 

 angustatis; conidiis diu cylindraceis vel subcurvis dein elongatis, 

 superne tenuatis, 4-8-septatis, 30-40 >^ 3,5-4. ^ , \ 



Hah. in fohis Ratibidse columnaris, Rooks Co., Kansas y 



Amer. bor. 



65. Cercospora tageticola Ell. et Ev. in Journ. of Mycol. 1902, p. 72. 5563 



— Hyphis liberis, geniculatis, septatis, 200-300 « 4; conidiis sub- 

 sequilongis, deorsum 6-8-septatis, ad septa constrictis, 5-6 |i.. crass. 



Hah. in fohis Tagetis patulse, Alabama in Amer. bor. — "^ \ 

 Species valde noxia; a C. canescenti E. et M. longitudine conidiorum 

 satis differt. 



66. Cercospora Centaureae Diedicke, Ann. Mycol. 1904, p. 514. — 5564 

 Maculis amphigenis, irregulariter angulosis, nervis atratis limitatis, 

 cinereo-albidis, mox diaphanis; conidiophoris ex stomatibus exsi- 

 lientibus, hypophyllis, fasciculatis, hinc inde leniter iiexis, 30- 



50 >f 2-3, sursum acutatis; conidiis cylindracsis, 20-39 « 3-5, utrin- 

 que abrupte acutatis, 1-2-cellularibus, celiula altera pauUo crassiore. ' 



Hab. in foliis viventibus et morientibus Centaure?e phry- 

 giie, Erfurt Thuringiae (E. SrEiGER). 



67. Cercospora guttulata Ell. et Kellerm. in Journ. of Mycol. 1903, 5565 

 vol. 9, pag. 105, fig. 2. — Maculis amphigenis, suborbicularibus, 

 isabellino-griseis, nigro-marginatis, 0,5-1 cm. diam.; hyphis bre- 

 vibus, amphigenis 15-20 ^ 3-4, in pagina inferiore numerosis, 

 dense stipatis, cylindracsi.^, erectis vel subundulatis, simplicibus, 

 apice obtasis, hyalinis; conidiis cylindraceis, utrinque acutiusculis, 

 curvulis, plariguttulatis, dein multiseptatis, 45-80 v 4-5, fere hya- 



J^"'^ ^ l{(ij) in foliis Aristolochi» macrophyllae, Marhnton 



Amer. bor. — A C. serpentaria E. et E. et a C. olivacea Sacc. 

 hyphis multo brovioribus conidiisque curvatis differt. 



68. Cercospora Patouillardi S^cc et D. Sacc. C. microsora Pat. in 5566 



