6 THE oi ccceeaaat ta EU-CANIN/ OF THE GENUS ROSA 
well as the shade of gree all characters which probably 
have their importance, but Which are for the most part lost in the 
ied plant. 
The number of leaflets does not vary much. In the vast 
majority of the subsection os review the pera are seven in 
Beeotets but they will be found to vary from five to nine. When 
ies are said by so: 
authors sto be characterized - the leaflets being so crowded that 
they overlap at the edges, while those allied to R. canina usually 
have them more widely spaced, but this rule, Tike most others, is 
subject to considerable variations. 
The may be shorter or longer than their bracts. 
They are in most species described as being overtopped by the 
bracts, but their sugih in specimens does not always tally with 
ripti 
that in the deser en g, the species grouped 
r "R coriifolia haze shorter peduncles than 
those of R. canina and umetorum, but there are notable 
exceptions on both sides The number o uncles in a cluster 
varies greatly, and seldom affords characters of importance, 
me species are distinguished on pedunel ng 
the Seana cimsislen almost grag Ss an alliance with LR. ande- 
specie 
Next to the leaflets, the sepals are the most variable organ 
with which we have to deal. Descriptions give with Sense 
minuteness their degree of pinnation, the shape of the pinne and 
of the terminal a e, also their hairiness or Geen si 
a study of many hundreds of specimens in Déséglise’ 
