^A 



Hab. In foliis vivis Caricis speciei cujusdam prope Florcl 

 Negri sub Monte Sarmiento, Maj. 1882, 



141. Uredo antarctica Speg. (n. sp.) 



Diag. Maculaenullae v. minutissimae, amphigenae, fusce- 

 scentes, indelerminatae ; acervuli hypophvlii, plus mi- 

 nusve laxe gregarii, minuti (0,3-0,5'" diam.), diu epi- 

 dermide tecti, fulvescentes, per aetateni decidui ac 

 folium perforatum relinquentes ; uredosporae globosae 

 v. ovoideae, saepe e mutua pressione angulosae ('20-24 

 X 18-20 [j.), tenui tunicatae, granuloso farctae, minu- 

 tissime subimperspicueque papillulosae (?) liyalinae. 



Hab. Ad folia primaria (nunquam in cotyledonibus) Ber- 

 5e/*ic/is cujusdam prope Ushuvaia, Maj. 1882. 



142. Uredo JUNCi Str. 



Hab. Ad cubnos languidos Junci cujusdam in uliginosis 

 prope Punta anegada in Freto magellanico, Jun. 

 1882. 



Obs. Sporae globosae (22-25 [j. diam.), pallide fulvescen- 

 tes, modice tunicatae, laxe majuscuieque asperulae. 



143. Uredo? aecidiiformes Speg. (n. sp.) 



Diag. Soriiiypophylli, mellei, hinc inde 3-8-aggregati, ma- 

 cula pallescenti fusco-marginata (2-8'" diam.) insidentes 

 parvuli, conoidei (0,3-0,5'" diam.), parenchymate innati, 

 apice discoideo-aperti, pulvinatuli, subconfluentes, 

 pseudoperidio nullo; uredosporae ovato-elongatae v. 

 subclavulatae, antice acutatae v. rotuudatae rarius 

 truncatae, postice attenuatae acutato-obtusatae (50-60 

 X 20 [j.), episporio crnssiusculo, minute denseque ru- 

 guloso donatae, e hyalino pallidissime subfulvescentes. 



Hab, Ad folia viva Berberidis ilicifoliae in sylvis prope 

 Penguln roohery in Staten island, Mart. 1882. 



Obs. In senectute folia perforata evadunt ob caducitatem 



