O'SO IIIK RISI'S ()|- NONA SCOI'IA. KHASKU. 



II. rredinia amphig-eiious. mostly liyitophylloni^, rounded 

 or oval, piilvoruleiit, snrroiinfled I'v iho i-nptured epidermis. 

 Urodiiiios] lores dlip-oid or ohoxnlc lt'(-i>() In- 21-27/^; wall 



vollowisli. \('fy tiiu'ly niiil (lcii-cl\- ccliiiinhilc. pores 2, lateral. 



III. Telia >caiiere(|, rouinli>li oii ]i';ivc>. abiiiulaut and 

 elongat<Hl on the stem, jnilvinate. lilackisli. Teliospores globose 

 or siibglobose. 19-24 bv 24-38/m. i-ounded or pointed al)ove, wall 

 I'hestnnt-brown. a]>ex thickened up lo 7m. >moolli: ])edio«ls 

 tinted, persistent, tirm. long, u-imlly miicli longei' than the 

 .spore. 



()ii I'dl //(joiiinn (iriciiliirc I,.. Pictou. Tnn'o. 



This is a cosmopolitan species, and is pro[»ably eommon. 

 The collections were made in the fall, so no aecia were present. 

 The t-eliospores are not formed till late summer. 



Uromyces Arisaemae ( 'ke. 

 IJromyces Caladii Farl. 

 yigredo Ciiladii ( Sehw. ) Ai'ih. 

 0. Pycnia hyjX)phyllons, scattered. 



T. Aex3ia hypophllons or jjctiolicolous, scattered, abundant, 

 low, margin erose. Aeciospores subglobose oi- elli])soid, ofteti 

 angular, 18-24 by 22-25/m, verrncose. 



II. Uredinia amphigenons, scattered, rounded or oi)long, 

 often covered by the epidermis, frequently confluent. T^redinio- 

 spores ]>ear-shaped, hase trinieate. ir)-21 by 2t)-^i'ifi. conspicu- 

 ously echinulate. 



III. Telia amphigenous, mostly epiphyllons. abundant, 

 scattered, rounded or oblong, long covered by the conspi(Mious 

 epidermis, sometimes confluent, somewhat pulverulent, Iu-ov^mi. 

 Teliospores oval, subglobo.se or ovate, 19-27 by 27-40fi; wall 

 light yellowish browni, uniform in thickness, with a small, 

 hyaline, apical papilla, Tcometimes more than one), pedicel 

 hyaline, fragile, deciduous, about the length of the spore. 



