The prog-ress of Genetics since the rediscovery of Mendel's papers. 371 



Dwarf (,R). 



Tall ^D) 



Fie-. 4. 



Eight plants in l\ generation from the cross tall Sweet-Pea {Lathyrns odomtus) X «Iwavf 

 Cupid variety. Five tails and three dwarfs came from one pod of seed. 



LIST I. 



1. ïalluess and dwarfness. Pistim (Mendel (75), T s c li e r m a k 

 (93 etc), R.E.C. (10 a) i), Lock (70)). Lathyms. R.E.C. (10a 

 and b). Bmscolus gives more complicated resnlts, which are 

 not yet fully elucidated (Tschermak (95, 97, 101), Emer- 

 son (54)). The same is true of cases in Pisiim where the 

 half-dwarf voices about 4 feet high are used. R.E.C. (10a). 



2. Hairiness and glabrousness Lychnis (de Vries (115) R. E. C. (10)). 



3. Keeled glumes and rounded glumes. Wheat (Biff en (12)). 



4. Prickliness and smoothness of fruits. Datura. (R.E.C. (10) 

 de Vries (115 II p. 184)). Piammmlus aroensis. (R.E.C. 

 (10 a)). 



1) For brevity the Eeports of Bate s on, Saunders and Punnett to the 

 Evolution Committee of the Roy. Soc. are thus referred to. 



i 



