THE OENUS ROSA 275 



clasped between the styles) and enclosed in stout paper bags. 

 The roses thus treated comprised representatives of Rosa 

 mollis, R. mollis var. caerulea, R. omissa, R. rubiginosa var. 

 comosa, R. coriifolia var. Lintoni, R. pimpinellifolia, R. 

 rubiginosa, Penzance hybrid Lucy Ashton. In the same year, 

 in June and July, a considerable number of forms were 

 similarly castrated in an unfrequented lane running along an 

 old waggon way abandoned a hundred years ago. Remote 

 from the colliery village as this lane is, too many people use 

 it as a short cut to admit of the possibility of leaving the 

 twigs bearing the experimental flowers exposed in paper bags. 

 I therefore very carefully cut the stigma heads oflf the 

 mutilated flowers. The bushes so dealt with were R. mollis, 

 R. omissa, R. tomentosa var. sylvestris, R. lutetiana, R. dume- 

 tornm, R. coriifolia var. Linfoni and R. glauca var. sjibcristata. 

 In the garden all of the fruit fell save for those on the two 

 Rubiginosce and certain of R. var. caerulea. On the waggon way 

 matters did not pursue the same course; by August 8th all of the 

 Villosa forms had fallen, and by August 15th the R. tomentosa 

 var. sylvestris and R. var. Liritoni had followed. Only hips 

 of R. diimetorum, R. lutetiana and R. glauca var. subcristata 

 thus remained. 



A month later, of these, R. bitetiana and R. dumetorum alone 

 persisted, accompanied by a solitary R. glauca. In October 

 the surviving glauca hip had vanished ; then, since they were 

 now ripe, the two lots of Eucaninae fruits were removed for 

 dissection. When examined, not a single fruit contained 

 anything save a few useless chaffy scales. In the Rosa 

 caerulea from the garden the fruit contained eight seeds on 

 the average against 20 in the case of those pollinated 

 normally ; the two Rubiginosa. supplied perfect seeds not 

 differing widely in numbers from those flowers left exposed to 

 chance pollination, self, insect, or otherwise. 



The position of the Rosa glauca var. subcristata needs special 

 attention. Unlike what occurred with the Villosce, Tomentosce 

 and Eucanince, the beheaded fruits began to swell as usual 



