INDEX TO AMERICAN BOTANICAL LITERATURE 123 
Sax, K. The relation between chromosome number, morpho- 
logical characters and rust resistance in segregates of par- 
tially sterile wheat hybrids. Genetics 8: 301-321. Jl 
1923. 
Sax, K. & McPhee, H.C. Color factors in bean hybrids. Jour. 
Hered. 14: 205-208. f. 7, 8. 30 Au 1923. 
Schiller, J. Beobachtungen iiber die Entwickelung des roten 
Augenfleckes bei Ulva Lactuca. Osterr. Bot. Zeitschr. 
72: 236-245. Au 1923. [Illust.] 
Schultz, E. S. & Folsom, D. Transmission, variation, and con- 
trol of certain degeneration diseases of Irish potatoes. 
Jour. Agr. Research 25: 43-118. pl. 1-16. 14 Jl 1923. 
Schussnig, B. Die Kernteilung bei Cladophora glomerata. 
Osterr. Bot. Zeitschr. 72: 199-222. pl. 8. Au 1923. 
Seifriz, W. Observations on the reaction of protoplasm to 
some reagents. Ann. Bot. 37: 489-510. f. 1-4. Jl 1923, 
Experiments made with Elodea. 
Shear, C. L. Phoma: a sample of mycological nomenclature 
and classification. Mycologia 15: 174-182. 20 Jl 1923. 
Shreve, E. B. Seasonal changes in the water relations of desert 
plants. Ecology 4: 266-292. f. 1-11. 7 Au 1923. 
Shull, C. A. Multiple-seeded burs of Xanthium. Science II 
58: 145, 146. 24 Au 1923. 
Sinnott, E. W. & Durham, G. B. A quantitative study of 
anisophylly in Acer. Am. Jour. Bot. 10: 278-287. 2 
Jl 1923. 
Small, J. K. The cabbage-tree—Sabal Palmetto. Jour. New 
York Bot. Gard. 24: 145-158. Au 1923. [Illust.] 
Includes biographical notes of various botanists by J. H. Barnhart. 
Smith, H. H. Botanical collecting in southwestern Wisconsin. 
Yearb. Public Mus. Milwaukee 2: 113-133. f. 68-76. 
20 Au 1923. 
Snell, W. H. Occurrence and identity of cotton mill fungi. 
Mycologia 15: 153-165. pl. 16. 20 Jl 1923. 
