314 INDEX TO AMERICAN BOTANICAL LITERATURE 
Hoehne, F. C. Monographia das Asclepiadaceas Brasileiras. Calo- 
stigma, Dene. Comm. Linhas Telegr. Estrat. de Matto-Grosso ao 
Amazonas Publ. 382: 1-29. pl. 1-12. Au 1916. : 
Includes C. Dusenii sp. nov. 
[Hoehne, F. C]. Seccao de botanica, in Mariano da Silva Rondon, C., 
Relatorio 3: 38-41. 1915. Commissao de linhas telegraphicas 
estrategicas de Matto-Grosso ao Amazonas [Brazil]. 
House, H. D. The wild flower preservation idea is one of practical 
value. Torreya 21: 17-21. Ap 1921. 
Hungerford, C. W. A modification of the concentrated formaldehyde 
method of seed treatment. Phytopathology 11:149,150. Mr 1921. 
Hunnewell, F. W. An extended range for Amelanchier amabilts. 
Rhodora 23: 71, 72. 1921. 
Huntington, E. The climatic factor as illustrated in arid America. 
Carnegie Instit. Washington Publ. 192: 1-341. pl. 1-12 + f. 1-89. 
15 My 1914. 
Hurd, A. M. Seed-coat injury and viability of seeds of wheat and 
barley as factors in susceptibility to molds and fungicides. Jour. 
Agr. Research 21: 99-122. pl. 13-23. 15 Ap 1921. 
Illick, J. S. Big trees in Pennsylvania. For. Leaves 18: 24, 25. Ap 
1921. [Illust.] 
Inman, O. L. Comparative studies on respiration. XVII. De- 
creased respiration and recovery. Jour. Gen. Physiol. 3: 663- 
666. f. 1-3. 20 My 1921. 
Irmscher, E. Neue Fissidens-Arten aus Brasilien und _Bolivien. 
Notizbl. Bot. Gart. und Mus. Berlin-Dahlem 7: 533-537- 1 Mr 
1921. 
New species from Brazil (4), and Bolivia (2). 
Jagger, 1. C. Bacterial leafspot disease of celery. Jour. Agr. Re- 
search 21: 185-188. pl. 46, 47. 2 My 1921. 
Caused by Pseudomonas A pii sp. nov. 
Johnson, D.S. William Harris. Bot. Gaz. 71: 331-333. 15 Ap 1921. 
Johnson, D. S., & York, H. H. The relation of plants to tide-levels. 
A study of factors affecting the distribution of marine plants. 
Carnegie Instit. Washington Publ. 206: 1-162. pl. 1-24 + f. I-5- 
31 D tors. : 
Jones, D. F. Heritable characters of maize. IV. A lethal factor— 
defective seeds. Jour. Heredity 11: 161-167. f. 9-15. 6 Je 1920. 
Kauffman, C.H. J/soachyla, a new genus of the Saprolegniaceae. Am. 
Jour. Bot. 8: 231-237. pl. 13, 14. 24 My 1921. 
Includes I. toruloides sp. nov., from Michigan. 
