194 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



On Ammiaceae: 



Musineon [Musenium] tenuifolium Nutt., Pseudocymopterus 

 anisatus (A. Gray) C. & R., P. bipinnatus (S. Wats.) C. & R., 

 and Oreoxis hiimilis Raf. 



Type locality: Freezeout Hills, Wyoming, on Musineon tenui- 

 folium {Nelson, 4491, July 10, 1898). 



Distribution: Montana to Colorado and Nebraska. 



ExsicCATi: Clements, Crypt. Form. Colo. Jjp; Barth. N. Am. 

 Ured. 50. 

 Note. — The teliospore wall gelatinizes and the spores swell to 



twice their normal size when heated in lactic acid. 



23. Allodus lacerata sp. nov. 



Aecia hypophyllous, caulicolous, gregarious on yellowish spots, 

 frequently in two rows when on the veins; peridium white, margin 

 deeply and conspicuously lacerate; peridial cells rhombic to 

 rhomboidal in longitudinal section, 21-26 by 20-37 M. the outer 

 wall 4-5 IX thick, smooth, the inner wall 5-7 n thick, lacerate- 

 verrucose; aeciospores 16-19 ^^Y 18-23 /x; wall 1-1.5 m thick, finely 

 verrucose. 



Telia amphigenous, scattered, small, circular, early naked, 

 chestnut-brown, ruptured epidermis not conspicuous; teliospores 

 broadly ellipsoid, 23-26 by 32-37 /x, constricted at septum; wall 

 dark cinnamon-brown, uniformly 1.5-2 ju thick, very minutely 

 verrucose; pedicel colorless, half the length of spore or less. 



On Ammiaceae: 



Sanicula marilandica L. 

 Type locality: Palmer Lake, Colorado, on Sanicula marilandica 



{Bethel, August i, 1903). 

 Distribution: Colorado to Canada. 



Note. — Puccinia Saniculae Grev. is a Dicaeoma correlated \\\\\\ 

 this species. 



24. Allodus melanconioides (E. & H.) Arth. Result Sci. Congr. 



Bot. Vienne 345. 1906 

 Puccinia melanconioides Ell. & Hark. Bull, (\ilif. Acad. Sci. 1: ly. 



1884. 

 Dicaeoma melanconioides Kuntze, Rev. Gen. Z^: 469. 1898. 



Aecia amphigenous, gregarious, annular; aeciospores 15-18 by 

 22-24 m; wall about 1.5 fx thick, finely \errucose. 



Telia amphigenous, scattered, rather long covered by the epi- 



