215 



2235. U. macrospora, Pk. Reg. Rep. 25, p. 96. 



Living leaves of elm. 



2236. U. flexuosa, Pk. Reg. Rep. 26, p. 80. 



Living leaves of horse-chestnut. 



2237. U. Clintonii, Pk. Reg. Rep. 25, p. 96. 



Living leaves of bassvvood. 



2238. U. circinata, C. and P. Reg. Rep. 25, p. 96. 



Living leaves of maple. 



2239. U. Ampelopsidis, Pk. (U. subfusca, B. and C.) Reg. Rep. 26, p. 80. 



Living leaves of Virginia creeper. 



2240. U. spiralis, B. and C. {U. Americana, Howe.) Reg. Rep. 26, p. 80. 



Living leaves of grape vines. 



793. PODOSPH^RIA, Kze. 



2241. P. Kunzei, Lev. (P. Cerasi, Lev., Reg. Rep, 24, p. 100.) 



Living leaves of cherry and thorn. 



794. MICROSPH^RIA, Lev. 



2242. M. Hedwigii, Lev. Reg. Rep. 25, p. 95. 



Living leaves of Viburnum. Erysiphe Viburni, Schw., is 

 probably the same species. 



2243. M. Van Bruntiana, Ger. Reg. Rep. 28, p. 64. 



Living leaves of Sambucus Canadensis. I have never been 

 able to find more than four spores in an ascus in this fungus, 

 and it is doubtful whether this form is specifically distinct 

 from M. Hedwigii, although the tips of the appendages are 

 generally more fully developed and have more numerous 

 bifurcations than in that species. 



2244. M. penicillata, Lev. Reg. Rep. 22, p. 100. 



Living leaves of beech, birch and hazel. 



2245. M. Friesii, Lev. Reg. Rep. 23, p. 65. 



Living leaves of lilac. 



2246. M. Russellii, Clinton. Reg. Rep. 26, p. 80. 



Living leaves of Oxalis stricta. 



2247. M. abbreviata, Pk. Reg. Rep. 28, p. 64. 



Dead oak leaves. 



2248. M. densissima, Schw. Reg. Rep. 26, p. 80. 



Dead oak leaves. 



2249. M. Dubyi, Lev. Reg. Rep. 26, p. 80. 



Living leaves of Lonicera. 



