342 INDEX TO AMERICAN BOTANICAL LITERATURE 
Acthur, J. C. Uredinales collected by R. Thaxter and J. B. 
Rorer in Trinidad. Bot.Gaz.73:58-69. f. 7-4. 18Ja1g22. 
Ashe, W. W. The eastern shrubby species of Robinia. Jour. 
Elisha Mitchell Sci. Soc. 37: 175-177. Mr 1922. 
R. grandiflora sp, nov. 
Ashe, W. W. Forest types of the Appalachians and White Moun- 
tains. Jour. Elisha Mitchell Sci. Soc. 37: 183-198. Mr 1922. 
Avten, J. T. The organic phosphorus content of some Iowa 
soils. Soil Sci. 13: 119-124. F 1922. 
Awschalom, M. Datos sobre la influencia del selenio en la 
vegetacién cuando sustituye al ion sulfurico en el liquido 
nutritivo de Knop. Revista. Facult. Agron. 14: 122-162. 
1921. 
Baas-Becking, L. G. M. The origin of the vascular structure 
in the genus Botrichium; with notes on the general anatomy. 
Rec. Trav. Bot. Neerlandais 18: 333-372. pl. 5,6 +f. I-40. 
1921. 
Bailey, J.W. Adventures in mossland.—A hunt for Desmatodon 
latifolius (Hedw.) Brid. Bryologist 24: 86-88. 27 F 1922. 
Bailey, L. W. Diatoms from the Quill Lakes, Saskatchewan, 
and from Airchie, Alberta. Contr. Canadian soos if: 
457-108." PF. a; o> AGeT: 
Barker, E. E. The architecture of the coco palm. Nature- 
study Rev. 18: 44-50. f. 1-4. Ja-F 1922. 
Benoist, R. Contribution a 1’étude de la flore des Guyanes. 
Bull. Soc. Bot. France 68: 311-323. 2 Au 1921. 
Berry, E. W. Additional occurrences of Pleistocene plants. 
Torreya 22: 10, 11. F 1922. 
Berry, E. W. Carboniferous - a from. Peru. Am. Jour. 
Sci. 203: 189-194. Mrs 
Berry, E. W. The flora of the Woodbine sand at Arthur’s 
Bluff, Texas. U.S. Geol. Survey 129: 153-180. pl. 36-40 
+ f. 12. 23 Mir. 1685. 
Includes Trochodendroides, gen. nov. 
