Uredinales, Uredinaceae infer., Aecidium. 887 



71. Aecidium praecipuum Arth., iu Bull. Torr. Bot. Club., XLVII, 1920, 3062 

 p. 480, Sydow, Mon. Ured. IV, 1923, p. 61. — Pycnidiis ampliige- 



nis, iu greges miuutos ca. 2 mm. diam. dispositis, tiavidis, deiu ob- 

 scnre brunneis, 100-130 (j. diam.; aecidiis hypopljyllis, maculis fla- 

 vidis 3-10 lum. diam. iusideutibus, laxiuscule gregariis, breviter 

 cyliudraceis, 300-400 \i diam., margine erecto pallide flavido inciso; 

 cellulis peridii firme conjuuctis, irregulariter oblongis, 32-40 p, lou- 

 gis, 20-23 (1 latis, processu longo decurreutibus, pariete exteriore 

 striato 9-11 p- crasso, interiore dense verrucoso 4-4,5 fi. crasso; spo- 

 ris nugnlato-globosis vel ellipsoideis, dense minuteque verruculosis, 

 subhyaliuis, 19-26 * 17-20, episporio ubique 2-2,5 [i crasso. 



Eab. in foliis Senecionis praecocis, in Mexico, pluri- 

 bus locis (Painter, Eose). 



72. AecJdium Serrae H. et P. Sydow, Ann. Mycol. X, 1912, p. 35. — 3063 

 Aecidiis hypophyllis, maculis flavis primo orbicularibus dein con- 

 fluendo irregularibus 0,5-1,5 cm. longis insidentibus, in greges laxe 

 dispositis et pycnidia circulo ambientibus, breviter cyliudraceis, 

 albidis, raargine revolnto, leniter iuciso; contextu e cellulis 26-40 [i 

 long. 22-30 fi latis composito ; aecidiosporis angnlato-globosis, sub. 

 tilissime verruculosis, subhyalinis, 16-22*13-17, episporio teuui 



(1,5 |JL cr.) sed subinde hinc inde incrassato. 



Hah. iu foliis S e n e c i o u i s S e r r a e, Belfast, Transvaal (E. 

 M. DOIDGE). 



73. Aecidium Siegesbeckiae H. et P. Sydow, Ann. Mycol. XI, 1913, 3064 

 p. 56. ■— Aecidiis hypophyllis, maculis osbicularibus pallidis v. flavo- 

 brunneolis 2-4 mm. diam. insidentibus, paucis in quaque macula 

 aggregatis, breviter cupulatis, albidis ; cellulis coutextus 28-40 |x 

 loug. 18-25 p. latis, dense verrucosis; aecidiosporis polygouiis dense 

 verruculosis, 18-25*17-21. 



Hab. in foliis Siegesbeckiae orieutalis, Isurumi prov. 

 Musashi Japonia (N. Nambu). 



74. Aecidium Sonchi Karst., Mycologia Fenn. IV, 1879, p. 43; Sydow, 3065 

 Mon. Ured. IV, 1923, p. 306. — Aec. Compositarum var. Sonchi 

 Karst., Fungi feun. exsicc. n. 690 ; Aec. Cichorii Namyslowski in 

 sched. {Aecidium sp. in Kosmos 30., 1911, p. 296, 299), in Aec, 

 Sonchi West., Syll. VII p. 805. — Pycnidiis amphigenis plerumque 

 parce gregariis, flavo-brunneis dein brunneis, 100-125 m. cr.; aecidiis 

 hypophyllis in maculis rotundatis flavo-brunneis v. rubrescentibus 



V. purpureo-marginatis insidentibus, in greges 2-5 mra. diam. circula- 

 riter aggregatis cupulatis 300-850 [a latis margine expanso revoluto 



