12g ROSACEAE. 



The most sumptuous American publication on Prunus is 

 contained in Hedrick's large volumes on The Cherries of 

 New York and The Plums of New York. Critical analysis of 

 our native species of Prunus and of the varieties of plums 

 derived from American species, by Wight, constitute respect- 

 ively Bulletins 179 and 172 of the United States Department 

 of Agriculture, both published in 1915. An analysis of the 

 pubescent-fruited species of the Southwest is published by 

 Mason in the first volume of the Journal of Agricultural Re- 

 search, issued by the Department of Agriculture. Some of 

 Professor Bailey's earlier opinions on Japanese plums were 

 published in Bulletins 62, 106, and 139 of the Agricultural 

 Experiment Station at Cornell University. 



Winter-characters of Prunus: P. americana. Blakeslee 

 & Jarvis, 508, pi.; Brendel, pi. 3; Hitchcock (1), 5, (3), 13, 

 (4), 136, f. 54-58. P. angustifolia. Hitchcock (1), 5, (3), 13. 

 P. Armeniaca. Bosemann, 53; Schneider, f. 183. P. avium. 

 Blakeslee & Jarvis, 341, 502, pi.; Bosemann, 53; Fant, 21; 

 Schneider, f. 185; Ward, 1:50, f. 32, 69, f. 48; Willkomm, 38, 

 f. 60. P. Buergeriana. Shirasawa, 256, pi. 6. P. cerasoides. 

 Shirasawa, 256, pi. 6. P. Cerasus. Blakeslee & Jarvis, 341, 

 504, pi.; Bosemann, 53; Fant, 21; Schneider, f. 185; Ward, 

 1:245, f. 128; Willkomm, 39, f. 61. P. Chamaecerasus. Bose- 

 mann, 53. P. chicasa. Hitchcock (1), f. 9-10, (4), 136, f. 49. 

 P. (Amygdalus) communis. Schneider, f. 184. P. domestica. 

 Blakeslee & Jarvis, 508, pi.; Bosemann, 52; Fant, 21, f. 16; 

 Schneider, f. 188; Ward, 1:243, f. 126; Willkomm, 3, 39, f. 62. 

 P. fruticosa. Schneider, f. 187. P. Grayana. Shirasawa, 256, 

 pi. 6. P. insititia. Bosemann, 53; Fant, 22, f. 17; Schneider, 

 f. 188; Willkomm, 39, f. 63. P. intermedia. Schneider, f. 187. 

 P. japonica. Shirasawa, 245, pi. 6. P. Mahaleb. Bosemann, 

 53; Schneider, f. 41, 128; Willkomm, 38, f. 59. P, Miqueliana. 

 Shirasawa, 255, pi. 6. P. Hume. Shirasawa, 253. P. Myro- 

 balana. Schneider, f. 186. P. nana. Bosemann, 75; Schnei- 

 der, f. 184. P. nigra. Blakeslee & Jarvis, 341, 506, pi.; Otis, 



