Love and Craig: Fertile Wheat-Rye Hybrids 



207 



this had been so, and accepting Jesenko's 

 conclusion, the plant would either have 

 been more wheat -like if crossed with 

 wheat, or more rye-like if crossed with 

 rye. The plant was more like the Fi 

 than either wheat or rye and was 

 partially fertile, and the plants pro- 

 duced from it wheat -like in appearance, 

 yet showing some relationship to rye. 



The fact that there is some partial 

 sterility among the later plants and that 

 some of the plant characteristics are like 

 rye is further evidence that we have a 

 fertile hybrid between wheat and rye. 

 It may be possible to find certain wheat 

 varieties that may produce fertile wheat- 

 rye hybrids. The results already ob- 

 tained would lead to that conclusion. 



Bibliography 



Wilson: Transact, und proceed bot. soc, Edinbourgh XII, 2 und Markelane Express 31. 



Mai, 1875. 

 Carman, E. S.: Rural New Yorker, August 30, 1884. 



Rimpau: Kreuzungsprodukte der landwirtschaftlichen Versuchspflanzen, 1891. 

 Signa: Italia agricola XL, TI. 

 Schliephacke: Deutsch. landw. Presse, 1904, p. 412. 

 Miczynski: Kosmos r. XXX, Lwow, 1905. 

 Nakao: "Cytological Studies on the Nuclear Division of The Pollen Mother-Cells of some 



Cereals and Their Hybrids." Jotirn. of the College of Agriculture, Sapporo, 1911. 

 Tschermak, E. v.: Bastardierungen zwischen relativ fremden Formen. In Fruwirths Zuch- 



tung landw. Kulturpflanzen, 1910, Bd. IV, p. 185. 

 Jesenko, F. : Sur un Hybride Fertile Entre Triticum Sativum 9 (Ble Mold-Squarehead) et 



Secale Cereale & (Seigle de Petkus). IV Conference Internationale De Genetique, Paris, 



1911. 

 : Ueber Gertreide-Speziesbastarde (Weizen-Roggen) . Zeitschrift fur Induktive 



Abstammungs- und Vererbungs-lehre, Band X, 1913. 

 Leighty, C. E.: "Natural Wheat-Rye Hybrids." Jour. Amer. Soc. Agron., vol. vii. No. 5, 



Sept.-Oct., 1915. 



: "Carman's Wheat-Rye Hybrids." Jour. Heredity, vol. vii. No. 9, Sept., 1916. 



11. McFadden, E. A.: "Wheat-Rye Hybrids." Jour. Heredity, vol. viii. No. 7, July, 1917. 



10 



A Freak Papaw (Carica Papaya) 



The Editor, 



Journal of Heredity. 

 Dear Sir : 



As generally found, the papaw fruit 

 is green in color when immature, and, 

 though in some cases it continues so, 

 even when fit for eating, it often shows 

 an orange coloration, running down the 

 fruit in bands. Occasionally the entire 

 fruit turns orange yellow — generally 

 when left to ripen on the tree. 



In the village of Dippittigala. about 

 6 miles from the provincial town of 

 Ratnapura, in Ceylon, the writer ob- 

 served a clump of papaw trees of a 

 strange appearance. AH the fruits, from 

 the smallest to the largest, were of 

 a sulphur yellow color, and the leaves 

 wore a marbled appearance in which 

 the same color predominated. The 

 smaller fruits were so light in color 



that they were almost white. On en- 

 quiry, the fact was elicited from one of 

 the prominent residents in the neighbor- 

 hood that the seed from ripe fruits 

 of this strange variety gave rise to 

 progeny true to type. Specimens were 

 secured and brought to Peradeniya, 

 where plants raised from seed were 

 found to produce the ordinary green 

 variety. 



Recently the writer visited the same 

 village and made further enquiries, and 

 was able to verify the fact that while 

 some of the seed from the trees in ques- 

 tion bred true, others did not. The 

 appearance of the trees at Dippittigala 

 suggested the name of *'xA.lbino Papaw." 

 The question arises — is this a case of 

 Albinism? — C. Drieberg, Superintend- 

 ent of School Gardens, Peradeniyd, 

 Cexloti. 



