98
DAVID D. KECK
Baker, H. G. 1953. Race formation and reproductive method in flowering plants.
Symposia Soc. Exptl Biol 7: 114-145.
Beasley, J. O. 1940. The origin of American tetraploid Gossypium species. Am.
Naturalist 74: 285-286.
Bell, C. R. 1954. The Sanícula crassicaulis complex (Umbelliferae). A study of
variation and polyploidy. Univ. Calif. (Berkeley) Puhls. Botany 27: 133-230.
Böcher, Τ. W. 1951. Cytological and embryological studies in the amphi-apomictic
Arabis Holboellii complex. Kgl Danske Videnskab. Selskab Biol Skrifter
6(7): 1-59.
Böcher, Τ. W. 1954. Experimental taxonomical studies in the Arabis Holboellii
complex. Svensk Botan. Tidskr. 48: 31-44.
Böcher, Τ. W., Larsen, K., and Rahn, K. 1953. Experimental and cytological
studies on plant species. I. Hereditas 39: 289-304.
Britton, D. M. 1951. Cytogenetic studies on the Boraginaceae. Brittonia 7:233266.
Brown, M. S., and Menzel, Μ. Y. 1952. Polygenomic hybrids in Gossypium. I.
Cytology of hexaploids, pentaploids and hexaploid combinations.
Genetics
37: 242-263.
Brown, S. W. 1943. The origin and nature of variability in the Pacific Coast blackberries (Rubus ursinus Cham. & Schlecht, and R. lemurum sp. nov.). Am. ].
Botany 30: 686-697.
Burbanck, M. P. 1941. Cytological and taxonomic studies in the genus Brodiaea.
Botan. Gaz. 103: 247-265.
Burbanck, M. P. 1944. Cytological and taxonomic studies in the genus Brodiaea.
II. Botan. Gaz. 105: 339-345.
Camp, W. H. 1945. The North American blueberries with notes on other groups
of Vacciniaceae. Brittonia 5: 203-275.
Camp, W. H. 1951. Biosystematy. Brittonia 7: 113-127.
Camp, W. H., and Gilly, C. L. 1943. The structure and origin of species. Brittonia
4: 323-385.
Cave, M. S. 1948. Sporogenesis and embryo-sac development of Hesperocallis and
Leucocrinum in relation to their systematic position. Am. J. Botany 35: 343-349.
Cave, M. S. 1953. Cytology and embryology in the delimitation of genera.
Chronica Botánica 14: 140-153.
Cave, M. S., and Constance, L. 1942. Chromosome numbers in the Hydrophyllaceae: I. Univ. Calif. (Berkeley) Pubis. Botany 18: 205-216.
Cave, M. S., and Constance, L. 1944. Chromosome numbers in the Hydrophyllaceae: II. Univ. Calif. (Berkeley) Pubis. Botany 18: 293-298.
Cave, M. S., and Constance, L. 1947. Chromosome numbers in the Hydrophyllaceae: III. Univ. Calif. (Berkeley) Pubis. Botany 18: 449-465.
Cave, M. S., and Constance, L. 1950. Chromosome numbers in the Hydrophyllaceae: IV. Univ. Calif. (Berkeley) Pubis. Botany 23: 363-382.
Church, G. L. 1949. A cytotaxonomic study of Glyceric and Puccinellia. Am.
J. Botany 36: 155-165.
Clausen, J. 1951. "Stages in the Evolution of Plant Species," 206 pp. Cornell
U.P., Ithaca, New York.
Clausen, J. 1954. Partial apomixis as an equilibrium system in evolution. Caryologia, Suppl., 469-479.
Clausen, J., Keck, D. D., and Heusi, W. M. 1932. Experimental taxonomy. Carnegie Inst. Wash. Yearbook 31: 201-205.
DAVID D. KECK
Baker, H. G. 1953. Race formation and reproductive method in flowering plants.
Symposia Soc. Exptl Biol 7: 114-145.
Beasley, J. O. 1940. The origin of American tetraploid Gossypium species. Am.
Naturalist 74: 285-286.
Bell, C. R. 1954. The Sanícula crassicaulis complex (Umbelliferae). A study of
variation and polyploidy. Univ. Calif. (Berkeley) Puhls. Botany 27: 133-230.
Böcher, Τ. W. 1951. Cytological and embryological studies in the amphi-apomictic
Arabis Holboellii complex. Kgl Danske Videnskab. Selskab Biol Skrifter
6(7): 1-59.
Böcher, Τ. W. 1954. Experimental taxonomical studies in the Arabis Holboellii
complex. Svensk Botan. Tidskr. 48: 31-44.
Böcher, Τ. W., Larsen, K., and Rahn, K. 1953. Experimental and cytological
studies on plant species. I. Hereditas 39: 289-304.
Britton, D. M. 1951. Cytogenetic studies on the Boraginaceae. Brittonia 7:233266.
Brown, M. S., and Menzel, Μ. Y. 1952. Polygenomic hybrids in Gossypium. I.
Cytology of hexaploids, pentaploids and hexaploid combinations.
Genetics
37: 242-263.
Brown, S. W. 1943. The origin and nature of variability in the Pacific Coast blackberries (Rubus ursinus Cham. & Schlecht, and R. lemurum sp. nov.). Am. ].
Botany 30: 686-697.
Burbanck, M. P. 1941. Cytological and taxonomic studies in the genus Brodiaea.
Botan. Gaz. 103: 247-265.
Burbanck, M. P. 1944. Cytological and taxonomic studies in the genus Brodiaea.
II. Botan. Gaz. 105: 339-345.
Camp, W. H. 1945. The North American blueberries with notes on other groups
of Vacciniaceae. Brittonia 5: 203-275.
Camp, W. H. 1951. Biosystematy. Brittonia 7: 113-127.
Camp, W. H., and Gilly, C. L. 1943. The structure and origin of species. Brittonia
4: 323-385.
Cave, M. S. 1948. Sporogenesis and embryo-sac development of Hesperocallis and
Leucocrinum in relation to their systematic position. Am. J. Botany 35: 343-349.
Cave, M. S. 1953. Cytology and embryology in the delimitation of genera.
Chronica Botánica 14: 140-153.
Cave, M. S., and Constance, L. 1942. Chromosome numbers in the Hydrophyllaceae: I. Univ. Calif. (Berkeley) Pubis. Botany 18: 205-216.
Cave, M. S., and Constance, L. 1944. Chromosome numbers in the Hydrophyllaceae: II. Univ. Calif. (Berkeley) Pubis. Botany 18: 293-298.
Cave, M. S., and Constance, L. 1947. Chromosome numbers in the Hydrophyllaceae: III. Univ. Calif. (Berkeley) Pubis. Botany 18: 449-465.
Cave, M. S., and Constance, L. 1950. Chromosome numbers in the Hydrophyllaceae: IV. Univ. Calif. (Berkeley) Pubis. Botany 23: 363-382.
Church, G. L. 1949. A cytotaxonomic study of Glyceric and Puccinellia. Am.
J. Botany 36: 155-165.
Clausen, J. 1951. "Stages in the Evolution of Plant Species," 206 pp. Cornell
U.P., Ithaca, New York.
Clausen, J. 1954. Partial apomixis as an equilibrium system in evolution. Caryologia, Suppl., 469-479.
Clausen, J., Keck, D. D., and Heusi, W. M. 1932. Experimental taxonomy. Carnegie Inst. Wash. Yearbook 31: 201-205.