106
DAVID D. KECK
Stebbins, G. L., Jr. 1940. The significance of polyploidy in plant evolution. Am.
Naturalist 74: 54-66.
Stebbins, G. L., Jr. 1941. Apomixis in the angiosperms. Botan. Rev. 7: 507-542.
Stebbins, G. L., Jr. 1942a. The role of isolation in the differentiation of plant
species. Biol. Symposia 6: 217-233.
Stebbins, G. L., Jr. 1942b. Polyploid complexes in relation to ecology and the
history of floras. Am. Naturalist 76: 36-45.
Stebbins, G. L., Jr. 1945. The cytological analysis of species hybrids. II. Botan.
Rev. 11: 463-486.
Stebbins, G. L., Jr. 1947. Types of polyploids: their classification and significance.
Advances in Genet. 1: 403-429.
Stebbins, G. L., Jr. 1949. The evolutionary significance of natural and artificial
polyploids in the family Gramineae. Proc. 8th Intern. Congr. Genet., Stockholm pp. 461-485; Hereditas Suppl. Vol.
Stebbins, G. L., Jr. 1950. "Variation and Evolution in Plants," 643 pp. Columbia Univ. Press, New York.
Stebbins, G. L., Jr. 1953. A new classification of the tribe Cichorieae, family
Compositae. Madroño 12: 65-81.
Stebbins, G. L., Jr., and Tobgy, H. A. 1944. The cytogenetics of hybrids in
Bromus. I. Hybrids within the section Ceratochloa. Am. J. Botany 31: 1-11.
Stebbins, G. L., Jr., Tobgy, Η. Α., and Harlan, J. R. 1944. The cytogenetics of
hybrids in Bromus. II. Bromus carinatus and Bromus arizonicus. Proc. Calif.
Acad. Set. 25 : 307-322.
Stebbins, G. L., Jr., Jenkins, J. Α., and Walters, M. S. 1953. Chromosomes and
phylogeny in the Compositae, subtribe Cichorieae. Univ. Calif. (Berkeley)
Puhls. Botany 26: 401-430.
Stern, F. C. 1949. Chromosome numbers and taxonomy. Proc. Linnean Soc.
London, Botany 161: 119-125.
Straw, R. M. 1955. Hybridization, homogamy, and sympatric speciation. Evolution 9: 441-444.
Sudre, H. 1908-1913. "Rubi Europae; vel, Monographia iconibus illustrata
Ruborum Europae," fasc. 1-6, pi. 1-215. Paris.
Taylor, H. 1945. Cyto-taxonomy and phylogeny of the Oleaceae. Brittonia 5:
337-367.
Therman, E. 1950. Chromosome numbers in American Polygonatum species. Am.
/. Botany 37: 407-413.
Therman, E. 1953. Chromosomal evolution in the genus Polygonatum. Hereditas 39: 277-288.
Thomson, B. F. 1942. The floral morphology of the Caryophyllaceae. Am. ].
Botany 29: 333-349.
Tippo, O. 1938. Comparative anatomy of the Moraceae and their presumed allies.
Botan. Gaz. 100: 1-99.
Tippo, O. 1946. The role of wood anatomy in phylogeny. Am. Midland Naturalist 36 : 362-372.
Tobgy, H. A. 1943. A cytological study of Crepis fuliginosa, C. neglecta, and
their F 1 hybrid, and its bearing on the mechanism of phylogenetic reduction in
chromosome number. /. Genet. 45 : 67-111.
Towers, G. Η. N., and Gibbs, R. D. 1953. Lignin chemistry and the taxonomy
of the higher plants. Nature 172: 25-26.
DAVID D. KECK
Stebbins, G. L., Jr. 1940. The significance of polyploidy in plant evolution. Am.
Naturalist 74: 54-66.
Stebbins, G. L., Jr. 1941. Apomixis in the angiosperms. Botan. Rev. 7: 507-542.
Stebbins, G. L., Jr. 1942a. The role of isolation in the differentiation of plant
species. Biol. Symposia 6: 217-233.
Stebbins, G. L., Jr. 1942b. Polyploid complexes in relation to ecology and the
history of floras. Am. Naturalist 76: 36-45.
Stebbins, G. L., Jr. 1945. The cytological analysis of species hybrids. II. Botan.
Rev. 11: 463-486.
Stebbins, G. L., Jr. 1947. Types of polyploids: their classification and significance.
Advances in Genet. 1: 403-429.
Stebbins, G. L., Jr. 1949. The evolutionary significance of natural and artificial
polyploids in the family Gramineae. Proc. 8th Intern. Congr. Genet., Stockholm pp. 461-485; Hereditas Suppl. Vol.
Stebbins, G. L., Jr. 1950. "Variation and Evolution in Plants," 643 pp. Columbia Univ. Press, New York.
Stebbins, G. L., Jr. 1953. A new classification of the tribe Cichorieae, family
Compositae. Madroño 12: 65-81.
Stebbins, G. L., Jr., and Tobgy, H. A. 1944. The cytogenetics of hybrids in
Bromus. I. Hybrids within the section Ceratochloa. Am. J. Botany 31: 1-11.
Stebbins, G. L., Jr., Tobgy, Η. Α., and Harlan, J. R. 1944. The cytogenetics of
hybrids in Bromus. II. Bromus carinatus and Bromus arizonicus. Proc. Calif.
Acad. Set. 25 : 307-322.
Stebbins, G. L., Jr., Jenkins, J. Α., and Walters, M. S. 1953. Chromosomes and
phylogeny in the Compositae, subtribe Cichorieae. Univ. Calif. (Berkeley)
Puhls. Botany 26: 401-430.
Stern, F. C. 1949. Chromosome numbers and taxonomy. Proc. Linnean Soc.
London, Botany 161: 119-125.
Straw, R. M. 1955. Hybridization, homogamy, and sympatric speciation. Evolution 9: 441-444.
Sudre, H. 1908-1913. "Rubi Europae; vel, Monographia iconibus illustrata
Ruborum Europae," fasc. 1-6, pi. 1-215. Paris.
Taylor, H. 1945. Cyto-taxonomy and phylogeny of the Oleaceae. Brittonia 5:
337-367.
Therman, E. 1950. Chromosome numbers in American Polygonatum species. Am.
/. Botany 37: 407-413.
Therman, E. 1953. Chromosomal evolution in the genus Polygonatum. Hereditas 39: 277-288.
Thomson, B. F. 1942. The floral morphology of the Caryophyllaceae. Am. ].
Botany 29: 333-349.
Tippo, O. 1938. Comparative anatomy of the Moraceae and their presumed allies.
Botan. Gaz. 100: 1-99.
Tippo, O. 1946. The role of wood anatomy in phylogeny. Am. Midland Naturalist 36 : 362-372.
Tobgy, H. A. 1943. A cytological study of Crepis fuliginosa, C. neglecta, and
their F 1 hybrid, and its bearing on the mechanism of phylogenetic reduction in
chromosome number. /. Genet. 45 : 67-111.
Towers, G. Η. N., and Gibbs, R. D. 1953. Lignin chemistry and the taxonomy
of the higher plants. Nature 172: 25-26.