550 APPENDIX. 



become bald ultimately). Prk. subequal, rarely extendirer to 

 the faces of st. Without bloom. Pan. usually lax or diffuse, 

 very rarely showing some glandular development. 



1. Pan. diffuse, or irregularly branched. 



a. St. bluntly angled, thinly hairy. Fr.-sep. reflexed. 



R. mertimts Bag-nail. Prk. irregularly scattered, strongly 

 declining. Lts. thinly hairy beneath ; term, roundish, more 

 than twice the length of iti stlk. Pan, sometimes slightlv 

 glandular. Pet. white, fading to pink. St. and rach. dark 

 purple. 



N.B. For subsp. bract eatus and clirysoxylon see below in 

 Sect. 2. 



R. leucandrus Focke. Prk. partly patent. Lts. softly hairv 

 beneath. Pan. eglandular. Fl. showy ; floral organs all 

 white. (Between R. qffinis and R. grfftus.) 



b. St. very stout, furrowed, often glabrate. Fr.-sep. 

 patent or clasping. 



R. grains Focke. Prk. short, broad-based, patent or slightly 

 declining. Lts. at first softly hniry, ultimately nearly bare 

 beneath. Pan. with widespreading few-flowered branches. 

 Pet. pink. Luxuriant. 



2. Pan. elongate ; cylindrical or pyramidal. 



a. Pan. pyramidal. Prk. moderate, declining or falcate. 

 R. bracteatus Bagnall. Lts. greyish, finely closely toothed, 



often felted beneath ; term, obovate. Pan. remarkably elongate 

 and narrowed above, felted, considerably glandular. Bracts 

 many. (Subsp. of R. mercicus Bagnall.) 



R. rhombifolms Weihe. Lts. rhomboid or ovate, acuminate, 

 green or white-felted beneath. Lower pan. -branches Ions', 

 strongly ascending. Floral organs usually all red. Sep. 

 reflexed. (Subsp. of R. villicaulis Koehl.) 



b. Pan. cylindrical, leafy. 



(i) Prk. weak, somewhat scattered and unequal. Fr.- 

 sep. subpatent. 



R. ctirysoxylon Rogers. St. ochreous or fuscous. L. 3-5- 

 nate, pale, with finely incised compound teeth. Pan. with 

 long-stemmed branches- Stkd. gl. scattered, usually few. 

 (Subsp. of R. mercicus Bagnall.) 



R. cdlvatus Blox. St. reddish. Lts. convex, harsh beneath, 

 with patent teeth ; term, oblong, with short point and cordate 

 base. Pan. long, lax, often glandular. (Subsp. of R. villicaulis 

 Koehl.) 



fii.) Prk. strong, confined to angles. Fr.-sep. reflexed. 



R. vi/licaulis Koehl. St. hairy. Prk. long, straight, many. 



