168 Further' Note on Fragaria 



The cross double flowering vesca x single produced in the Fi gene- 

 ration single flowers with occasional extra petals. The Fi's selfed pro- 

 duced 



60 Single 24 Double 



37 Single 13 Double 



Total 97 Single 37 Double. 



Expectation (3 to 1) lOO'S Single 33"5 Double. 

 The cross Single x Double produced /^/s single. 

 The Fi generation selfed produced 



58 Single 25 Double. 



Expectation (3 to 1) 62'25 Single 20-75 Double. 



It is worth noting that some dark pink doubles were very beautiful 

 flowers : my experiment was not on a large enough scale to make certain 

 of my figures but they pointed to a 1 to 15 ratio, the white double being 

 the 1. 



Hairy leaf stems and front of leaf . In reality all, stems are to some 

 extent hairy, but some appear to be " hairy " because the hairs stand 

 out from the stems and are more numerous. On the other hand, the 

 front of the leaf may be quite glabrous. 



In a cross Virgihiana x Chiloensis the F-^h had " hairy " stems and 

 the front of the Ifeaves was hairy. The i^i's selfed produced 



32 " Hairy " stems 10 not " hairy " 



29-1-3 (marked ? " consider hairy ") Hairy front of leaf 10 Glabrous. 



Clearly a 3 to 1 in each case. 



An F., generation, from a selfed F^ of a cross Chiloensis x Virginiana, 

 have yielded plants showing marked segregation of numerous characters 

 — too numerous for me to go into carefully in the short time at my 

 disposal. 



Leaving these simple matters I pass to the much more difficult 

 problem — Sex. 



Chine nsis $ x Chiloensis ^ gave 



26 $ 21 c/ or ? . 



Chinensis $ x Virginiana </ gave 



18 ? U^ or ^. 



