302 
& V. Bates. 1987. Armoracia lacustris (Brassicaceae), the 
correct name for the North American lake cress. J. Arn 
Arbor. 68: 357-359. 
Anderson, E. 1936. The species problem in Iris. Ann. Missouri 
Bot. Gard. 23: 457-509. 
Anderson, L. C. & J. B. Creech. 1975. Sees leaf anatomy 
of Solidago and related Asteraceae. Amer J. Bot. 62: 486-493. 
Anonymous. 1928. Check-list of the ferns ‘and flowering plants 
indigenous to the Missouri Botanical Garden Extension, Gray 
Summit, Missouri. Missouri Bot. Gard. Bull. 16: 65-74, 83-91. 
Argus, G. W. 1964. Preliminary reports on the flora of Wisconsin. 
No. 51. Salicaceae. The genus Salix-the willows. Trans. 
Wisconsin Acad. Sci. 53: 217-272. 
1986. The genus Salix ety Bech in the southeastern 
vidinited States. Syst. Bot. Monogr. 9: 1-170. 
Arnow, L. A. 1987. Gramineae. Pp. or 788 in S. L. Welsh, N. D. 
Atwood, S. Goodrich, & L. C. Higgins wig A Utah Flora. 
Great Basin Naturalist Mem. 9: 1-894 , 1m 
Ashe, W. W. 1900. New East American ane of Crataegus. J. 
Elisha Mitchell Sci. Soc. 16: 7 
Austin, D. F. 1986. pe abv of the Ipomoea nil complex 
(Convolvulaceae). Taxon 35: 355-358, 
Bailey, L. H. 1945, Species batorum. The genus Rubus in North 
America (north of Mexico). X. Subg. V. Idaeobatus. Subg. VI. 
Anoplobatus. Gentes Herb. 5: 858-918. 
Ball, P. W. 1968. Vicia. Pp. ye in T. G. Tutin, V. H. 
Heywood, N. A. Burges, D. M. Moore, D. H. Valentine, S. M. 
Walters, & D. A. Webb (editors), Flora Europaea, volume 2, 
Pec Univ. Press, Cambridge, Great Britain. xxvii, 455 pp., 
5 maps 
Ballard, R 1986. Bidens ig complex eeeeoeeee) in North and 
Central America. Amer. J. Bot. 73: 1452-1465. 
Banks, D. J. 1966. Taxonomy of Paspalum setaceum (Gramineae). 
Sida 2: 269-284. 
Barber, S. C. 1982. Taxonomic Studies in the Verbena stricta 
complex (Verbenaceae). Syst. Bot. 7: 433- 456. 
Barkley, T. M. 1962. A revision of Senecio aureus Linn. and related 
species. Trans. Kansas Acad. Sci. 65: 318-408. 
axonomic notes on Senecio fomentosus and its allies 
~~ (Asteraceae). Brittonia 32: 291-308, 
1986. Asteraceae. Pp. 838-1021 in Great Plains Flora 
~~ Associaton Flora of the Great Plains. Univ. of Kansas Press, 
Lawrence, Kansas. vii, 1392 pp. 
