216 INDEX TO AMERICAN BOTANICAL LITERATURE 
Knowlton, C. H. Herbarium of Rev. W. P. Alcott. Rhodora 
23: 47« 5 Ap 1921. 
Knowlton, F.H. Criteria for determination of climate by means 
of fossil plants. Bull. Geol. Soc. Amer. 32: 353-358. 1 
S 1921. 
Knox, A. A. The induction, development, and_ heritability 
of fasciations. Carnegie Instit. Washington Publ. 98: 1-18. 
pl. 1-5 + f. 1. 1908. 
[This is the second ‘paper of this publcatiion.]. 
Knudson, L., & Ginsburg, S. Suggestions with respect to the 
measurement of osmotic pressure. Am. Jour. Bot. 8: 
164-170. f. r. 3 Ap r92t. 
Knunker, A. Hans Freiherr von Tiirckheim. Gartenflora 
70: 19-22. 15 Ja 1921. 
Von Tiirckheim collected chiefly in Guatemala 
Koch, E., & Rumbold, C. Phoma on sweet sorghum. Phyto- 
pathology 11: 253-268. pl. 9-11 + f. 1-3. 15 N 1921. 
Kradusel, R. Ist Taxodium distichum oder Sequoia semper- 
virens Charakterbaum der deutschen Braunkohle? © Ber. 
Deutsch. Bot. Ges. 39; 258-263. f. 1-3. 10S 1921. 
Includes a discussion and illustrations of ]the parenchyma of Taxodium 
mexicanum. 
Krieger, L. C. C. Is Amanita pantherina edible or poisonous? 
Mycologia 13: 270, 271. 8 O 1921. 
Lachmund, H. G. Some phases in the formation of fire scars. 
Jour. For. 19: 638-640. O 1921. 
Leighty, C. E., & Boshnakian, S. Genetic behavior of the spelt 
orm in crosses between Triticum spelta and Triticum 
sativum. Jour. Agr. Research 22: 335-364. pl. 33 + f: 
I-3. 12 N 1921. : 
Leonian, iL. H. Studies on the Valsa apple canker in New 
Mexico. Phytopathology 11: 236-243. 21 O 1921. 
Lindau, G. Eine neue Aphelandra-Art. Notizbl. Bot. Gart. 
u. Mus. Berlin-Dahlem 8: 50. 1 S 1921. 
Aphelandra Dusenii from Brazil. 
