Ustilagineaj, Aiuero.sporiiL', Ustilago. 461 



H. Spoivr i;iMiiul;Uiv3, papillosie vul voi'nico.ScO, raro leviiiseiil i», hrniuiciu. 



40. Ustilago segetum (Bull.) Dittni. in Sturm. D. C. Fl. III, 67, t. 33, i676 

 Fiscii. Aperc. p. 12, Winter Die Pilze p. 90, Scliroet. Pilz. Scliles. 



p. 207. Retioularia segetam lUili. Hisr. Cliamp. Fr. I, p. 90, t. 

 472, f. 2, Uredo ser/etum Pers. Disp. meth. p. 56, Uredo Carbo 

 DC. FI. Franc. VI, p. 76, Erysibe cera Wallr. Fl. Crypt. Germ. 

 II, p. 217, n. 1672, Cccoma segetum Linlv Sp. II, p. 1, Reticu- 

 laria Ustilago L. Syst. nat. II, p. 1472. — Soris ox. atro olivaceo- 

 bruuneis, pulverulentis, epidermiiie tectis, eaque cito rupta, liberis; 

 sporis globosis aut oblongis, sa^pe irregulariter angulatis, 4,5-8 ::s 

 .4,5-6, episporio e flavo olivaceo-brunneo, levi vel j^unctulato in- 

 structis; promycelio cylindraceo, plerumque 3-septulato; sporidio- 

 lis ellipticis, minutis, ut plurimum ad parietes septulorum vel ad 

 apicem sitis; cellulis germinantibus ellipsoideis. 



Hab. in paniculis pedicellisque earum uec non in ovariis, qua^ 

 ex toto destruit, Polypogonis interrupti, Andropogo- 

 nis hirsuti, Festuc?e pratensis, Arrenatheri elatio- 

 ris, Cynodontis DactjMi, Elymi sybinei, Lepturi i n- 

 curvati, Danthonias Forskilii, Avena; sativse, flave- 

 scentis, vulgaris, orientalis et pubesceutis, Aira? ca3- 

 s p i t o s ;l', T r i t i c i v u 1 g a r i s, t u r g i d i et S p e 1 1 ae, H o r d e i 

 vulgaris, hexastichi, murini et distichi, Syntheri- 

 sm cG s a n g u i n a 1 i s , L o 1 i i p e r e u u i s et t e m u 1 e n t i, M e 1 i- 

 ca^ sp. in Italia, Gallia, Fennia, Germania, Britannia, Austria, 

 Delgio, Lusitania, Hungaria, Neerlandia in America boreali et 

 Brasilia (Balansa), in Chili (Winter) et Patagonia (Spegazzini), 

 Cairo aliisque AtVicre borealis locis, pr. Somerset East Afr. austra- 

 lis, in Japonia nec non pr. Minussinsk Sibiriae asiatic» et in Queens- 

 laiidia (ScoRTECHiNi). 



41. Ustilago bromivora Fisch. de Wald. Apercu pag. 22, Winter 16''7 

 Die Pilze pag. 91, Schroet. Pilz. Schles. pag. 269, Bref. Unter- 

 such. V, pag. 123, tab. 10, fig. 1-8, Ustilago Carbo var. val- 

 garis d. bromivora Tul. in Mem. Scienc. Nat. 1847, pag. 81. — • 

 Soris atro-brunneis, primo pustuliformi-bullatis, dein pulverulen- 



tis; sporis globosis vel ellipsoideis, raro ovatis, 8-14^:0-10, ejii- 

 sporio obscure brunneo, papillulis vix distinctis ornato vel sublevi 

 instructis; promycelio cyliudraceo-tusiibrmi, mox evanido, ut plu- 

 riiuuni 1-septato; sporidiolis terminalibus et lateralibus, fusoideis, 



