1920] BISBY—UROMYCES 203 



O. Pycnia epiphyllous, few, gregarious in small groups, usually 

 opposite the telia, punctiform, subepidermal, brownish, flattened 



globose, 60-130 /z in diameter by 30-65 /jl in. height; ostiolar 



Wats., Jalisco; Bauhinia sp., 



filaments compact, short. 



III. Telia at first hypophyllous, becoming also somewhat epi- 

 phyllous, numerous, scattered or in small groups, roundish, small, 

 0.2-1 mm. across, early naked, pulverulent, chocolate-brown, 

 surrounding epidermis inconspicuous ; teliospores globoid or broadly 

 ellipsoid, 14-21 by 18-26 ju, rounded at the ends; wall cinnamon 

 or chestnut brown, thick, 2 . 5-4 /x, apex thicker, 4-7 ju, with a paler, , 

 broad umbo, finely reticulated; pedicel pale or colorless, often 

 roughened below, rather fragile but sometimes two or three times 

 as long as the spore. 



On ( 

 Guerrero. 



Type locality: Guadalajara, Mexico, on Bauhinia Pringlei. 

 Distribution: Known only from Southwest Central Mexico. 



Illustration: Ark. Bot. Stockh. 4: pi. i.fig. 9. 

 Exsiccati: Barth., N.Am. Ured. 286. 



Literature: Vestergren, Ark. Bot. Stockh. 4:28-29. 1905; Sydow, 

 Monog. Ured. 2:80, 81. 1909; Saccardo, Syll. Fung. 21:550-551. 1912. 



3. Uromyces jamaicensis Vesterg. Ark. Bot. Stockh. 4:33. 



1905- 



O. Pycnia chiefly epiphyllous, gregarious in small groups with 

 the telia, subepidermal, brownish, flattened, 60-100 /x in diameter 

 by 45-70 jli in height; ostiolar filaments compact, hardly extending 

 beyond the ostioles. 



III. Telia amphigenous, numerous, gregarious in small groups 

 or occurring singly, sometimes on small yellowish spots, roundish, 

 small, o. 1-1 mm. across, early naked, pulverulent, chestnut-brown, 

 surrounding epidermis noticeable; teliospores globoid, broadly 

 ellipsoid or obovoid, 12-17X16-23 ju. rounded or slightly narrowed 



(sometimes up to 3 . 5 ju) 



cinnamon 



thick, thicker at the apex, up to 5 », with a lighter crater or cap- 

 shaped crown, closely and finely reticulate, appearing verrucose 

 under the lower powers of the microscope; pedicel pale, fragile, 



X— t m .. 1 



4-1 5 ju long. 



