Literature Cited. 109 



Harrison, J. VV. Heslop, 1920b. The inheritance of melanism in the genus 



Tephrosia (Ectropis) with some consideration of the 



inconstancy of unit characters under crossing. 



Journ. of Genetics 10: 61-8o, figs. 3. 

 Heribert-Nilsson, N , 1912. Die Variabilitat der CEnothera Lamnrckiana und das 



Problem der Mutation. Zeits. f. Abst. u. Vererb. 8 : 



89-231. pis. 3, figs. 36. 

 Hilbert, R., 1913. Hepatica triloba. Gil. mit gefullter Blute. Allgem. Bot. 



Zeitschr. f. Syst. Floristik, etc. 19 : 140-142. 



Hooper, J. J., 1916. A peculiar breed of goats. Science N.S. 43 : 571. 

 Howard, A. and G. L. C. Howard, 1912. On the inheritance of some 



characters in wheat. Mem. Dept. Agr India 



(Botany), 5 : 1-46, pis. 3. 



Hus, Henri, 1911. The origin of species in nature. 



Amer. Nat. 45 : 641-667,figs. 7. 

 Hutchinson, A. H., 1915. On the male gametophyte of Picea canadensis. 



Bot. Gazette 59 : 287-300, pis. 5. 

 Hyde, R. R., 19l5a. The origin of a new eye-color in Drosophila repleta, and 



its behavior in heredity. Amer. Nat. 49 : 183-185. 

 1915b. A wing mutation in a new species of Drosophila. 



Amer. Nat. 49 : 185-187. 



Jeffrey, E. C., 1917. The anatomy of woody plants. 



University of Chicago Press. Pp. 478, figs. 306. 

 Hammerer, P., 1909. Vererbung erzwungener Fortpflanzungsanpassungen. 



III. Die Nachkommen der nicht brutpflegenden 



Alytes obstetricans. 



Arch f. Entw. Mech. 28 : 447-545, pis. 2. 

 ,J ,, 1919. Vererbung erzwungener Formveranderungen. I. Die 



Brunftschwiele des Alytes Mannchen aus 



"Wassereiern." Arch. f. Entw. Mech. 45: 323-370. 

 Keeble, F., C. Pellew, and Jones, W. N., 1910. The inheritance of peloria and 



flower-colour in foxgloves (Digitalis put purta). 



NEW PHYTOL. 9 : 68 76. 



Lang, Arnold, 1912. Vererbungswissenschaftliche Miszellen. 



Zeits. f. Abst. u. Vererb. 8 : 233-283, figs. 6. 



Lang, \V. H., 1898. On apogamy and the development of sporangia upon 

 fern prothalli. Phil. Trans. Roy. Soc., London B. 

 190: l7-238, pis. 5. 

 ,, 1901. On apospory in Anthoceros leevis. 



Ann. of Botany 15: 503-510, pi. 1. 



,, 1909. A theory of alternation of generations in Archegoniate 



plants based on ontogeny. NKW PHYTOL. 8 : 1-12. 



Lewis, I. F., 1909. The life history of Griffithsia Bornetiana. Ann. of Botany 



23 : 41-690, pis. 5, figs. 2. 

 Lodewiiks, J. A,, 1911. Erblichkeitsversuche mit Tabak. Zeitsch. f. Abst. 



u. Vererb. 5 : 139-172, figs. 9. 

 Loeb, Jacques, 1916. The Organism as a whole. 



Putnams : New York and London, pp. 379, figs. 51. 

 Lutz, AnneM., 1908. Chromosomes of the somatic cells of the CEnotheras. 



Science N.S. 27; 335. 

 1909. Notes on the first generation hybrid of (Enothera lata x 



(E.gigas. Science N.S. 29 : 263-267. 

 1916. CEnothera mutants with diminutive chromosomes. 



Amer. Journ. Bot. 3 : 502-526, pi. 1, figs. 7. 



,, 1917a. Characters indicative of the number of somatic 



chromosomes present in CEnothera mutants and 

 hybrids. Amer. Nat. 51 : 375-377. 



1917b. Fifteen- and sixteen-chromosome CEnothera mutants. 



Amer. Journ. Bot. 4: 53-111, figs. 9. 



