736 UredinnceEe. Ravenelia. 



scure castaueis, verrucis brunueolis coufertis tectis, raargine saepe 

 appendicibus cj^lindraceis obtusis usque ad 10 ;i. longis, brunneolis 

 instructis, sporis (cellulis) magnis, usque ad 25 jj-. Jatis, angulatis non 

 septatis; cellulis cystoideis ovoideis hyalinis, in aqua diffluentibus, 

 circulariter compositis; pedicello caduco. 



Hab. in foliis Lonchocarpi sp., in horto bot. Goeldi, Para 

 Brasiliie (C. F. Baker). 



3. Ravenelia Cebil Speg., An. Mus. Nac Buenos Aires t. XIX (1909) 2792 

 p. 295. • — Maculis parvulis flavescentibus indeterminatis; acervulis 

 erumpenti-superficialibus, solitariis vel 3-8-gregariis, ferrugineis ; 

 uredosporis elongato-obovatis 30 « 15, episporio superne valde in- 

 crassato levi inferne tenui non v. obsoletissime papilloso, siiepius 

 grosse 1-2-guttuIatis fulvellis, paraphysibus capitatis uncinato-in- 

 curvis concoloribus, pedicello 15 « 6, capitulo 10^15, cinctis; te- 

 leutosporis e globoso depressis 50-100 * 40-60, e cellulis subcylin- 

 draceis arcte connatis 12-15 [j.. diam., ferrugineis compositis, in- 

 ferne stipite brevissimo hyaliuo mox diffluente, cystibus 3-5 pu- 

 sillis fibrillisque uonuullis collariato, suffultis. 



Hah. in foliis Piptadenise macrocarpse, in Parque Roca 

 Tucumau Amer. austr. 



4. Ravenelia irregularis Arth., North Amer. Fl. VII (1907) p. 142. 27[)3 

 Pycnidiis epiphyllis, iu parvos greges confertis, iuconspicuis, pal- 

 lide flavis, punctiformibus, epidermicis, rotundato-couoideis, 60- 



90 latis; uredosoris hypophyllis primum iu maculis decoloratis 

 iusidentibus, dein amphigeuis et sparsis, rotuudatis, parvis, sub- 

 epidermicis, mox nudis, pulvoraceis, leniter ciuuamomeo-brunneis ; 

 paraphysibus uullis; uredosporis late ellipsoideis, 21-23 »17-19; 

 tuuica pallide-flava, 1 [j.. c. cr., crebre subechiuulato-verrucosa, 

 poris germinativis 6 v. ultra sparsis, priedita; teleutosoris ple- 

 rumque epiphyllis, sparsis, parvis, subepidermicis, nigro-bruuueis, 

 nitidis ; teleutosporis apice obscuro castaueo-brunneis, perimetro 

 irregularibus, 4-7-ceIIuIaribus, 60-90 [j.. diam., quaque spora 3-5 

 tuberculis semihyaliuis 4-7 [j.. loug., irregulariter angulosis pr;e- 

 dita; cystibus hyalinis subconfertis, iu pedicellum decurreutibus; 

 pedicello hyalino, brevi, deciduo. 



Hah. in foliis Cracc;e macranthae, Mexico. 



5. Ravenelia caulicola Arth., North Amer, Fl. VII (1907) p. 143.— 2794 

 Pycuidiis iguotis; uredosoris plerumque caulicolis, sparsis, parvis, 

 0,2-0,3 mm. diam., quaudoque subcoufluentibus; paraphysibus nul- 

 lis; uredosporis late ellipsoideis 19-25 » 16-18; tuuica pallide flava, 



