442 INDEX TO AMERICAN BOTANICAL LITERATURE 
Knox, A. A. The relation of fasciation to injury in the evening prim- 
roses. Plant World 10: 145-151.. 7 29.: Jl 1907. 
Kupfer, E. Studies in plant regeneration. Mem. Torrey Club 12: 
195-241. f. I-13.- 10 Je 1907. 
Lawson, A. A. The gametophytes and embryo of the Cupressineae 
with special reference to Libocedrus decurrens. Ann, Bot. 21: 281- 
301. p/. 24-26. Ap 1907. 
Mackenzie, K. K. The range of Vaccinium virgatum. ‘orreya 7: 
144,145. 19 Jl 1907. 
Malme, G.0. A. Nigra anteckningar om Victoria Lindl., sarskildt 
om Victoria Cruziana D’Orb. Act. Hort. Berg. 45: 1-16. pl. I-4. 
1907. 
Natives of South America. 
Mottier, D. M. The development of the heterotypic chromosomes in 
pollen mother-cells. Ann. Bot. 21: 399-347. pil. 27, 28. Jl1907- 
Murrill, W. A. Leaf blight of the plane-tree. Jour. N. Y. Bot. Gard. 
8: 157-161. f, 21,22. Jl 1907. 
Nash, G. V. An attractive Philippine shrub in flower. Jour. N. Y. 
Bot. Gard. 8: 161-103. 7.29. Ji 1907. 
Nash, G. V. Structure and classification of orchids. Jour. Hort. Soc. 
N.Y. 2 eee Je 1907. 
Nash, G. V. Useful or €conomic plants. Jour. Hort. Soc. N. Y. 1: 
33-35- Je 1907. 
O’Mara, P. Sports. Jour. Hort. Soc. N. Y. 1: 39-43- Je 1907. 
Powell, G. T. The value of selection in the propagation of trees and 
plants. Jour. Hort. Soc. N. Y. 1: 36-38. Je 1907. 
Purpns, J. A; (toh; Thurberi Engelm. Monats. Kakteenk. 17: 107. 
15 Jl 1907. [Illust. ] 
Native of Mexico and Arizona. 
Purpus, J, A. Neue, von Rose beschriebene Kakteen aus Mexico. 
Monats. Kakteenk. 17: 91-93. 15 Je 1907. 
Quehl, L.  Varietiten der Mamillaria strobiliformis Scheer. _Monats. 
Kakteenk. 17: 86, 87. 15 Je 1907. 
Natives of Mexico, 
Rolfe, R. A. Odontoglossum Leeanum. Curt. Bot. Mag. IV. 3: fv. 
6142. Jl 1907. 
Native of Colombia. 
Rolfs, F.M. Die back of the peach trees (Valsa /eucostoma Pers.). 
Science II. 26: 87-89. 19 Jl 1907. 
