160 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bailey, L. ae sapiens stellata. Addisonia 6: 37, 38. pl. 2zr. 
24 O1 
Ball, C. R. ae on willows of sections Peniandreae and Nigrae. 
Bot. Gaz. 72: 220-236. f. 1-4. 15 O 1921 
Includes 2 new varieties of Salix from California. 
Barker, E. E. Bud variation in the sugar cane. Jour. Hered. 
LP BG 1374. $6.27 = 25.9 19021. 
Bechtel, A. R. The floral anatomy of the ls sor Am. 
Jour. Bot. 8: 386-410. pl. 15-22. 14 N 19 
Bird, si Soil acidity in relation to insects and Sie Ecology 
2: 193-197. ‘ 
Birge, ‘ A., & Juday, C. Further Gracia observations 
on the Finger Lakes of New York. Bull. Bur. Fisheries 
a4 211252, J. 2-5, 8 O 1071. 
Includes notes on plankton botany. 
Blakeslee, A. F., Cartledge, J. L., & Welch, D. S. Sexual 
dimorphism in Cunninghamella. Bot. Gaz. 72: 185-219. 
Jets I§ OC ie. 
Boynton, K. R. Bergenia crassifolia. Thick-leaved saxifrage. 
Addisonia 6: 43. pl. 274. 24 O 1921. 
Boynton, K. R. Helichrysum bracteatum. Strawflower. 
Addisonia 6: 46. pl. 275. 24 O 1921. 
Bradshaw, R. V. Cynosurus echinatus in Oregon. Torreya 
> 81-83. O 1921: 
Braun, E. L. Composition and source of the flora of the Cin- 
cinnati (Ohio) region. Ecology 2: 161-180. f. z. 3 D 1921. 
Briggs, G. Para and Paspalum: two introduced grasses of 
Guam. Guam Agr. Exp. Sta. Bull. 1: 1-44. pl. 1-6. 2 
D 1921. 
Britton, E. G. Clerodendron Thompsonae. Mrs. Thompson's 
clerodendron. Addisonia 6: 39, 40. pl. 212. 24 O 1921. 
nes = L. Lathyrus latifotius. Everlasting pea. Addiso- 
6:35. pl. 210. 24 O 1921. 
pain. N. L. Plant nomenclature: more suggestions. Jour. 
Bot. 59: 296, 297. O 1921. 
Brotherston, R. P. The pentstemon. Gard. Chron. 70: 208. 
2°Q. I92t. 
