366 INDEX TO AMERICAN BOTANICAL LITERATURE 
Munz, P. A., & Johnston, I. M. The penstemons of Southern 
California. Bull. So. Calif. Acad. Sci.23: 21-40. Ja-F 1924. 
Including new varieties and combinations. 
Newcombe, F. C. Significance of the behavior of sensitive 
stigmas II. Am. Jour. Bot. 11: 85-93. ‘‘F’”’ 6 Mr 1924. 
Palmer, E. L. Woody plants in winter. Cornell Rural Sch. 
Leaflet 17: 1-47. Ja 1924. [Illust.] 
Porter, C. L. Concerning the characters of certain fungi as 
exhibited by their growth in the presence of other fungi. 
Am. Jour. Bot. 11: 168-188. pl. 4-6, f. 1-9. 26 Mr 1924. 
Reed, H. S., & Haas, A. R. C. The effect of hydroxyl-ion 
concentration on the growth of walnut roots. Am. Jour 
Bot. 11: 78-84. f. 1-6. “F” 6 Mr 1924. 
Reid, M. E. Relation of kind of food reserves to regeneration 
in tomato plants. Bot. Gaz. 77: 103-110. f. 1-2. 19 Mr 
1924. 
Rice, M. A. Internal sori of Puccinia sabe Bull. Torrey 
Club 51:.37-s0. f. 1-g. . “F’’-12 Mr 
Richey, F.D. Effects of selection on the yield of a cross between 
varieties of corn. U.S. Dept. Agr. Bull. 1209: 1-19. f. 1-2 
1924. 
Ryerson, K. Embryo-budding of the avocado. Jour. Heredity 
15:°39-37. f. 10-22. °" Ja" 5 Mr 1924. 
Ryerson, K. The recovery of the avocado tree after the 1922 
freeze in California. Florida Grower 29: 6-7. 1 Mr 1924. 
Schmitz, H. Studies in wood decay IV. The effect of sodium 
carbonate, bicarbonate, sulphate, and chlorid on the rate 
of decay of Douglas fir sawdust induced by Lenzites saepiaria 
Fr. with special reference to the effect of alkaline soils on 
the rate of decay of wood in contact with them. Am. Jour. 
Bot. 11: 108-121. Jf. rs. "P" & Mr soee, 
Seaver, F. J. Greenhouse pests. Jour. New York Bot. Gard. 
25: 35-37. “FF Mr 
Abstract of a lecture. 
