()0 v a n O v e r e e m , Formen m. abweichend. Chromosomenzahl b. Oenothera. 



141) Gates, R. R., The Behaviour of the Chromosomes in Oenothera 



lata et Oe. gigas. (Bot. Gazette. XLVIII. 1909. p. 179—200. 

 PI. 12—14.) (C.) 



142) — Some Variations and Hybrids of Oenothera. (Science. N. S. XXIX. 



1909. p. 906.) (E.) 



143) — Apogamy in Oenothera. (Science. N. S. XXX. 1909. p. 691— 694.) (E.) 



144) — Studies of Inheritance in the Evening Primrose. (Chicago Med. Re- 



corder. 1909. 6 pp.) (E.) 



145) — Some Effects of tropical Conditions on the Development of certain 



English Oenotheras." (Rept. Brit. Assoc. Adv. Sei. Winnipeg 1909. (1910). 

 p. 677—678.) (Ph.) 



146) — - The Chromosomes of Oenothera Mutants and Hybrids. (Proc. 7th Intern. 



Zool. Congress. Boston 1907. Cambridge 1910. 4 pp.) (C.) 



147) — The Material Basis of Mendelian Phenomena. (Americ. Naturalist 



XLIV. 1910. p. 203—213.) (E.) 



148) — The earliest Description of Oenothera Lamarckiana. (Science. N: S. 



XXXI. 1910. p. 425—426.) (S.) 



149) — Abnormalities in Oenothera. (Rept. of the Missouri bot. Garden. XXI. 



1910. p. 175—184. PI. 29—31.) 



150) — Chromosome Reduction in Oenothera. (Bot. Gazette. XLIX. 1910. 



p. 64—66.) (C.) 



151) — Early historico-botanical records of the Oenotheras. (Proc. Iowa Acad. 



Science. 1910. p. 85—124. 6 pl.) (S.) 



152) — Twin Hybrids in Oenothera, with a Suggestion concerning their Expla- 



nation. (Science. N. S. XXXIII. 1911. p. 262.) 



153) — Pollen Formation in Oenothera gigas. (Annais of Botany. XXV. 1911. 



p. 909—940. PI. 67—70.) 



154) — Studies on the Variability and Heritability of Pigmentation in Oeno- 



thera. (Zeitschr. f. ind. Abst.- u. Vererb. -Lehre. IV. 1911. S. 337—373. 

 6 Tfl. 5 Fig. II Tab.) (E.) 



155) — Mutation in Oenothera. (Americ. Naturalist. XLV. 1911. p. 577 — 606.) 



(E.) 



156) — The Mode of Chromosome Reduction. (Bot. Gazette. LI. 1911. 



p. 321—345.) (C.) 



157) — Certain Aspects of the Mutation Problem in Oenothera. (Nature. 



LXXXVII. 1911. p. 105.) (E.) 



158) — Parallel Mutations in Oenothera biennis. (Nature. LXXXIX. 1912. 



p. 659—660.) (E.) 



159) — Somatic Mitoses in Oenothera. (Annais of Botany. XXVI. 1912. 



p. 993—1010. PI. 86.) (C.) 



160) — An Onagraceous Stern without Internodes. (The New Phytolog. XI. 



1912. p. 50—53. PI. 2—3.) (Ph.) 



161) — Mutations in Plants. (The Bot. Journ. IL 1912. p. 84—87. 1 Fig.) (E.) 



162) — A new Oenothera. (Rhodora. XV. 1913. p. 45—48. PI. 100—101.) (S.) 



163) — A Contribution to a Knowledge of the mutating Oenotheras. (Transact. 



of the Linn. Soc. London. Ser. 2. VIII. 1913. p. 1—67. PI. 1—6.) (E.) 



164) — Tetraploid Mutants and Chromosome Mechanisms. (Biol. Centralbl. 



XXXIII. 1913. S. 92—99, 113—150. 7 Fig.) (C. E.) 



165) — Oenothera and Climate. (Science. N. S. XXXVII. 1913. p 155—156.) 



(Ph.) 



