618 Hyphomycetese, Dematiese, Phragtnosporae, Cefcosporai 



stellari-raniosis vel radiantibus, epiphyllis, orbiculatis, primo albi- 

 dis; dernum ochracGis, gregariis, postrerno grumosis; hyphis exter- 

 nis dilute fuscis, iriternis hj^alinis, magnis, longis, interdutn septa- 

 tls, apice acutatis; conidiis longe ellipsoidoo-ovoideis, vertice sub- 

 obtusatis, apice subacutis, 2-3-septatis, ad septa non constrictis, 

 fusco-brunneis, 12 s 5. 



Ilab. ad folia Acalyphae levigatae in insula St. Domingo 

 (C. Keck). 



CERCOSPORA Fres. — Sacc. Syll. IV, p. 431. 



I. In Dicotyledoneis herbaceis. 



1. Cercospora Calthx Cooke Grev. XVII, p. 65. — Macnlis orbicu- 7571 

 laribus, epiphyllis, fuscis; hyphis brevibus, hyalinis; conidiis cy- 

 lindraceis, subattenuatis, septis vix distinctis, 30-35 :; 2. 



Ilab. \n foliis languidis Calthse, Forres Britann. bor. 



2. Cercospora Aquilegiae Kell. et Sw. Journ. Mycol. 1889, p. 71. — 7572 

 Maculis amphigenis, purpureo-brunneis, sparsis v. subinde confluen- 

 tibus, 3-15 s 1,5-5 mm., irregulariter linearibus v. oblongis, inter- 

 dura subquadrangularibus; caespitulis minutis, ex hyphis 2-6, laxis 

 compositis; hyphis fuscis, simplicibus, vix attenuatis, apice vulgo 

 valide geniculalo-deutatis, 50-145^4-6,5; conidiis paacis, hyalinis, 

 flagellatis, basi obtusis, crassioribus, apice gracilliinis et acumina- 



tis, 140-310 :? 4,5-6 (basi), apice 1,5-3 a. cr. 



Hab. in foliis radicalibus Aquilegiae canadensis, Manhat- 

 tan, Kansas Amer. bor. 



3. Cercospora Menispermi E. et Holw. Journ. Myc. 1888, p. 6. — 7573 

 Hypophylla; maculis parvis, indefinitis, atro-brunneis, demum or- 

 bicularibus, 2-5 mm. diam., subtus concavis et plus minus confluen- 

 tibus, csespitulis e basi subsphserica, tuberculari, cii*c. 35 [x, diam., 

 exsurgentibus; hyphis subrectis, pallide brunneis, saepius continuis, 

 75-80 » 4, supra geniculato-sinuatis; conidiis obclavatis, 40-60« 

 5-7, pallide brunneis, guttatis, dein 3-5-septatis, saepe raulto bre- 

 vioribup, obovatis v. oblongo-ellipsoideis, 1-3-septatis, 15-25^5-7. 



Hab. in foiiis vivis Menispermi canadensis, Decorah, Jowa 

 et Maiihattan Kansas Amer. bor. (W. T. Sv^moLE). 



4. CercGspora Nasturtii Pass, — Syll. IV, p. 433 — var. Sisymbrii 757^ 

 Bauml. F. Schemn. I, p. 11. — Hyphis in caespituios coHectis, 60- 

 100-7, fuscis, sursum hyalinis et denticulatis; conidiis 100-120 



s 3-6, clavatis, hyalinis, 



Ba^. in foliis Sisyrabrii austriaci pi\ Schemniz Hungarise. 



