312 INDEX TO AMERICAN BOTANICAL LITERATURE 
Forsaith, C. C. The morphology of wood in relation to brashness. 
Jour. For. 19: 237-249. Mr 1921. [IIlust.] 
Fred, E. B., Peterson, W. H., & Anderson, J.A. The relation of lactic 
acid bacteria to corn silage. Jour. Biol. Chem. 46: 319-327. Ap 
1921. 
Fries, R. E. Revision der von Glaziou in Brasilien gesammelten 
Amarantaceen. Arkiv Bot. 16%: 1-21. pl. 1 +f. I-5. 21 
Yactade hort and Pseudogomphrena, gen. nov., and new species in Altern- 
anthera (2), Gomphrena (1), Pseudogomphrena (1). 
Fries, R. E. ats: Kenntnis der siid- und zentralamerikanischen Amaran- 
taceen-flora. Arkiv Bot. 16'8: 1-43. pl. 1-4+/f. 1-11... 18 Je 
1920. 
Includes new species in Pfaffia (3), Alternanthera (3), Gomphrena (7), Iresine (1). 
Funck, N. Venezolanische Reiseerinnerungen. Bull. Mens. Soc. 
Natur. Luxembourg. 30: 120-122; 139-140. 1920. 
Gardner, M. W., & Kendrick, J. B. Bacterial spot of tomato. Jour. 
Agr. Research 21: 123-156. pl. 24-28. 15 Ap 1921 
Gardner, M. W., & Kendrick, J. B. Tomato bacterial spot and seed 
disinfection. Bull. Purdue Univ. Agr. Exp. Sta. 251: 1-15. f. I-10: 
F 1921. 
Gardner, W. A. Effect of light on germination of light-sensitive seeds. 
Bot. Gaz. 71: 249-288. 15 Ap 1921. 
Gilbert, W. W. Cotton diseases and their control. U.S. Dept. Agr. 
Bull. 1187: 3-32. f. 1-18. Mr 1921 
Gilg, E. Eine neue prachtvoll bliihende Gentiana-Art (Gentiana 
regina) aus Peru. Notizbl. Bot. Gart. und Mus. Berlin-Dahlem 7: 
509-511. 1 Mr 1921. 
Godfrey, G. H., & Harvey, R. B. Motion pictures of zoospore pro- 
duction in Phytophthora. Phytopathology 11: 145, 146. pl. 6. 
Mr I92r. 
Haenseler, C. M. The effect of salt proportions and concentration on 
the growth of Aspergillus niger. Am. Jour. Bot. 8: 147-163. f. I-O, 
3 Ap 1921. 
Hansen, A.-A. Lawn pennywort: a new weed. U.S. Dept. Agr. Circ. 
165: 1-6. f. 7-3. Ap 1921. 
Hanson, H.C. Distribution of the Malvaceae in southern and western 
Texas. Am. Jour. Bot. 8: 192-206. f. 1. 30 Ap 1921. 
Harlan, H. V., & Anthony, S. Effect of time of irrigation on kernel 
development of barley. Jour. Agr. Research 21: 29-45. f. 1-20. 
1 Ap 1921 
