fungí guaranitici 125. 



152. Uredo valenzuelivna Speg, (n. sp.) 



Diag. Maculae nullae v. pariim manifestae, indeterminatae, pal- 

 lescentes, saepeque totuní folium occnpantes; acervuli hypo- 

 phjlli, laxe gregarii v. sparsi, minuti (250-300 diam.), tiirai- 

 duli, primo tecti deiii erumpentes, testaceo-fuscescentes ; stylo- 

 sporae gioboso-obovatae v. e mutua pressione subirregulares 

 (20-25x13-16), episporio modicissime incrassato, laevi v. vix 

 snperne laxe minutissimeque granuloso, protoplasmate nubiloso 

 farctae, pallide f ulvo-melleae ; parapbyses in glomerulis peri- 

 pliaericae, elongato-subteretes, arcuato-incurvae, ápice subatte- 

 nuato-rotundatae, basi truncatae (20x7-8), dense constipatae, 

 e hyalino subchlorino-melleae, 



Hab. Ad folia viva Metastelmatis diffusi in dumetis vallis Ya-can 

 vocatae inter Valenzuela et Paraguari, 9 Nov. 1882 (sub 

 num. 3729). 



153. Uredo zeae Dsm. 



Hab. Ad folia viva Zeae Mayáis in arvis prope Guarapi, Dec, 1882 

 (sub num. 3734). 



154. Aecidium australe Speg. (n. sp.) 



Diag. Maculae quandoque nullae, quandoque amphygenae, latis- 

 simae ac fere totum folium occupantes, indeterminatae, palle- 

 scentes, medio saepesubincrassatulae; pseudoperidiahypophylla 

 in plagulas majusculas (3-8 mllm.diam.), subellipticas constipata, 

 minuta (150-180 diam.), flavida, primo subglobosa dein poculato- 

 aperta, ore vix exerto, crenulato albicante, membranácea, con- 

 textu parenchymatico-loricato, e cellulis obovatis v. elliptico- 

 rhomboideis , utrinque truncato-obtusatis (18-20x12-16), 

 crasse tuuicatis, dense minutissimeque granulosis, hyalinis com-- 

 posito; sporae subg'obosae e mutua pressione saepius obtuse 

 polygonae (14-17x12-15), episporio crassiusculo, laevissimo, 

 hyalino, protoplasmate nubiloso-granuloso lutescente farctae. 



Hab. Ad folia viva Erigeronlis bonariensis in uliginosis prope 

 Paraguari, 22 Nov. 1882 (sub num. 3753). 



155. Aecidium iPOMEAE Speg. — Fung. Arg, pug. I, n. 52. 



var. MiiNüS 

 Diag. Maculae nullae v. vix manifestae, pallescentes, indetermi- 

 natae; pseudoperidia hinc inde compactiuscule 4-15-aggregata, 



