30 INDEX TO AMERICAN BOTANICAL LITERATURE 
Hopkins, E. F. The Sphaerulina leaf spot of clover. Phyto- 
pathology 13: 117-126. pl. 8, 9 + f. 1-3. 13 Mr 1923. 
Horn, T. Das gegenseitige Mengenverhaltnis der Kohlen- 
hydrate im Laubblatt in seiner Abhangigkeit vom Wasser- 
gehalt. Bot. Archiv 3: 137-173. 15 Mr 1923. 
Howe, J.M. George Rogers Hall, lover of plants. Jour. Arnold 
Arb. 4: 91-98. 8 My 1923. 
Hunnewell, F. W. Salix serissima on Long’s Peak [Colorado]. 
Rhodora 25: 67, 68. 9 Ap 1923. 
Jenks, C. W. Lepachys columnaris in eastern Massachusetts. 
Rhodora 25: 68. 9 Ap 1923. 
Kakizaki, Y. Linked inheritance of certain characters in the 
Adzuki bean. Genetics 8: 168-177. Mr 1923. 
Kakizaki, Y. Self-sterility in Chinese cabbage. Jour. Hered. 
13: 374-376. f. 20. 25 Ap 1923. 
Kelly, J. P. Astylis Phicx. Jour. Hered. 13: 339-342. f. I-4 
+ frontispiece. 25 Ap 1923. 
‘The relation of this variation of Phlox Drummondii to the large-eyed. 
flower.” 
Kitson, L. C. The pifion. Am. For. 29: 158, 159. Mr 1923- 
[Illust.]} 
Krantz, F. A. Permanence of variety in the potato. Jour. 
Agr. Research 23: 947-962. pl. z. 24 Mr 1923. 
Kranzlin, F. Orchidaceae, Monandrae, Oncidiinae, Odonto- 
glosseae II. Pflanzenreich IV 50: 1-344. f. 1-29. 14 Mr 
bas 
ncludes new American species in Cyrtochilum (9), Cncidium (55), Leocht- 
lus o, Sipmatasielie (9), and Cryptarrhena (1). 
Krieger, L.C.C. Preliminary note on the position of the hymen- 
ium in Physalacria inflata (Schw.) Peck. Maryland Acad. 
Sci. Bull. 3!: 7, 8. Ja 1923. 
Kryshtofovich, A. Pleuromeia and Hausmannia in eastern 
Siberia, with a summary of the paleobotany of the region. 
Am. Jour. Sci. 205: 200-208. Mr 1923. 
