June 1902 ] Index to North, American Mycology . 101 
Uromyces polymniae (P. Henn) Diet. & Holw., on Polymnia 
maculata. Bot. Gaz., 31 ’.327. May 1901. 
Uromyces rubi Diet & Holw. n. sp., on Rubus. Bot. Gaz., 31: 
327. May 1901. 
Uromyces venustus Diet. & Holw. n. sp., on Cestrum nitidum. 
Bot. Gaz., 31:326. May 1901. 
Ustilago eriocauli G. P. Clinton n. s., on Eriocaulon septangu- 
lare With. Rhodora, 3:82. April 1901. 
Vagnera stellata (L.) Morong. (Smilacina stellata Desf.), host 
to Aecidium magnatum Arthur sp. nov. Bull. Torr. Bot. 
Club, 28:664. Dec. 1901. 
Valsa lepargyreae Earle n. sp., on dead branches of Lepargyrea 
argentea. PI. Bakerianae, 2:25. 25 March 1901. 
Van Slyke, L. L., Harding, H. A., and Hart, E. B. A Study of 
Enzymes in Cheese. (Due to Bacteria, etc.) Bull. N. Y. 
Agr. Exp. Sta. 203:215-244. Dec. 1901. 
Vegetable Mould, matrix for Pluteolus aleuritus gracilis Peck 
n. var. An. Rep. N. Y. State Mus. 54:149. 1901. 
Veratrum, dead, weathered stems, host to Leptosphaeria veratri 
Earle n. sp. PI. Bakerianae, 2:21. 25 March 1901. 
Verbesina diversifolia, host to Puccinia ferox Diet. & Holw. n. 
sp. Bot. Gaz. 31:333- May 1901. 
Verbesina sphaerocephala, host to Coleosporium anceps Diet. & 
Holw. n. sp. Bot. Gaz. 31:338. May 1901. 
Verbesina virgata, host to Coleosporium verbesinae Diet. & 
Holw. n. sp. Bot. Gaz. 31 ‘.337. May 1901. 
Viguiera dentata, host to Puccinia iostephanes Diet. & Holw. 
n. sp. Bot. Gaz. 31.334. May 1901. 
Viguiera palmeria, host to Puccinia subglobosa Diet. & Holw. 
n. sp. Bot. Gaz. 31:332. May 1901. 
Violet Rusts of North America. J C. Arthur and E W D Hol- 
way. (Descriptions, synonomy and figures.) Minn. Bot. 
Stud. 2:631-41. 1 pi. 20 July 1901. 
Volvaria concinna Clements n. sp., on moist shaded ground and 
on flooded banks. Univ. Nebr. Bot. Surv. 5 :g. 30 March 
1901. 
Volvaria submyochrous Clements n. sp., on wet earth in a base¬ 
ment. Univ. Nebr. Bot. Surv. 5:10. 30 March 1901. 
