878 Uredinales, Urediuaceae, infer. Aecidiutn. 



pliiribus locis, in America bor, occid. — Socia (luanrtoqne Pvccinia 

 suhdecora Syd. et Hohv., gonetice diversa. ^ 



io. AecidJum Conyzae piniiatilobatae Sydow, Mon. Ured. IV, 1923, 303i 

 p. 32. — Aecid. Mao OwaitiiDuini Tliiiineu f. Conyzae pinnatilobatae 

 Tlillin. in Flora ~)S., 1875, p. 380. — Aecidiis bypophyllis, niacu- 

 lis [)U'ruin(iue orbicularibiis tiavis vel Havo-brunueolis 3-6 inm. diani. 

 iusidentibus, gregariis, cupuhitis, 250-300 [i diain., margine albido 

 revoluto inciso ; cellulis peridii siibrhoinboideis, 20-28 «^ 16-20, pa- 

 riete exteriore tenuissime striato 4-7 \x crasso, interiore verrucoso 

 ca. 3 i^ crasso.; sporis aiiguhito-globosis vel ellipsoideis, dense et 

 subtilissime verruculosis, subhyalinis, 15-19*13-17, episporio 1 \i 

 crasso, saepe ad apiceiu crassiore (2-5 \i). 



Hab. foli is C o n y z a e p i u u a t i 1 o b a t a e , p o d o c e p h a- 

 1 a e , in Africa austr.  



•11. Aecidium Hoffmannii Sydow, Mon. Ured. lY, 1923, p. 32.— Pyc- 3032 

 iiidiis ain[)higenis, in centro macularuiu gregariis, modice copiosis, 

 flavo-brunueis deiu obscurioribus, 100-130 [Ji diam. ; aecidiis hypo- 

 phyllis, siugulis haud raro etiam epiphyllis, maculis intense flavis 

 valde perspicuis, orbicularibus 5-10 mm. diain. insideutibus, circu- 

 lariter dispositis, cupulatis, ca. 250 pi diam., margiue denticulato 



. albo revoluto ; cellulis peridii firine conjuuctis, subrhomboideis, 

 25-36 * 14-18, pariete exteriore striato 5-7 [i crasso, interiore ver- 

 ruculoso ca. 3 jx crasso ; sporis augulato-globosis vel ellipsoideis, 

 deuse minuteque verruculosis, subhyalinis, 17-23 * 13-17, episporio 

 1 fi ad apicem 3-8 ii crasso. 



Hab. in foliis Conyzae liinosae O. Iloft^m., Maramba pr. 

 Kalolo, Africae austr. (H. Baum). 



42. AecidJum Dahliae Sydow, Ann. Mycol. 18., 1920, p. 155. — Pyc- 303 

 nidia epiphylhi, modice copiosa, gregaria, flavo-brunnea, dein ob- 

 scuriora, ca. 100 (x diam. ; aecidia hypopliylla, in greges rotunda- 

 tos 4-8 lum. diam. deuse disposita, cupuliformia, ca. 300 [x diaiu., 

 margiue lacerato recurvato, cellulis peridii firme conjunctis, rhoiu- 

 boideis, 30-45 * 17-20 ; aecidiosporae augulato-giobosae, subtiliter 

 verruculosae, subhyalinae, 16-20 * 15-17,5, episporio 1-1,5 |i crasso. 



Hah. in foliis D a h 1 i a e v a r i a b i 1 i s , Pedregal , Mexico , 

 Amer. bor. (C. Eetche). 



43. Aecidlum Pardalianches Bergamaschi, Giorn. de Fisica, Cbim, St. 303 

 nat. med. ed Arti, Dec. II, v. VII, 1824, p. 280 ; Sydow, Monogr. 

 Ured. IV, p. 36 (1923). — Pycnidiis epiphyllis, grregariis, melleis, deiu 

 obscurioribus, 100-120 |a diam.; aecidiis liypoj^hyllis, maculis flavidis 



k 



