566 APPENDIX. 



c. Sep. clasping and almost hiding fr. 



R. velatus Lef v. St. with scattered silky hairs. Prk. stout- 

 based. Term. It. roundish-obovate-acuminate. Stain, exceeding 

 sty. Carp, pubescent. 



I). (Group XIV.) St. low arching or trailing, pruinose. Prk. 

 scattered mostly acicular and straight. Bas. Its. sessile or 

 very nearly so. 



Group XIV. C^ESII (Corylifolii Focke). St. roundish or 

 slightly angular, with many rooting branches. Intermediate 

 acic. and stkd. gl. few (except in some forms of R. dumetorum}, 

 sometimes absent. Lts. mostly broad ; bas. hardly stalked. 

 Stip. often rather broad. Pet. large roundish. Drupelets 

 usually rather few and large. Fl. early and late. See Focke, 

 Syn. R. G. 337. 



1. L. 5-nate or 3-4-nate. Stip. linear-lanceolate or filiform 

 (rather broadly lanceolate, in R. Balfourianus). Drupelets 

 fairly many, rather large, mostly epruinose. 



R. dumetorum Wh. & N. Sp. collect. St. and pan.-ra.ch. 

 with many unequal prk. acic. and glandtipped organs. Lts. 

 usually thick. Pan. mostly long, regular, compound, with 

 rach. usually very hairy. Fr.-sep. mostly erect or subpatent. 



(For conspectus of R. dumetorum forms see below, at the 

 end of this table.) 



R. corylifolius Sm. Sp. collect. Prk. subequal, irregularly 

 scattered. Glandtipped organs very few. Lts. moderately 

 thick. Pan. somewhat irregular, with few axillary branches 

 and whitish-felted rach. Fr.-sep. normally reflexed. 



a. Var. sublustris Lees. St. round. Prk. subulate. L. 

 5-7-nate. Term. It. broadly ovate-acuminate incised-serrate 

 and (often) lobate. 



b. Var. cyclophyllus (Lindeb.). St. bluntly angled. Prk. 

 rather short and stout. L. 5-nate. Term. It. roundish cuspi- 

 date-acuminate, not lobate. 



R. Balfourianus Blox. Stkd. gl. mostly short, fairly many 

 though unequally scattered. Lts. usually thin, conspicuously 

 wrinkled above. Stip. rather broad. Pan. diffuse, with 

 straggling few-flowered branches. Fr.-sep. clasping. Fl. and 

 fr. large. 



2. L. normally 3-nate. Stip. considerably broadened in 

 middle. Drupelets few, very large, conspicuously glaucous. 



R. ccssius Linn. Prk. weak short subulate. Stkd. gl. and 

 acic. seldom many, sometimes absent. Lts. thin. Pan. lax, 

 few-flowered. Fr.-sep. clasping. Whole plant weak. 



