APPENDIX I. 
Group IV. ViLLiCAUXES. Hardly separable from Rhamni- 
folii, but making some approacli towards Sil vatici in st. mostly 
lower and usually hairy (though often only thinly so and liable 
to become bald ultimately). Prk. subequal, rarely extending 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. viercicus Bagnall. Prk. irregularly scattered, strongly 
declining. Lts. thinly hairy beneath ; term, roundish, more 
than twice the length of its stalk. Pan. sometimes slightly 
glandular. Pet. white, fading to pink. St. and rach. dark 
purple. 
-A'.^.— For subsp. bracteatus and chrysoxylon see below in 
Sect. 2. 
R. leucandrtis Focke. Prk. partly patent. Lts. softly hairy 
beneath. Pan. eglandular. Fl. showy ; floral organs ail 
white. (Between R. ajfinis and R. gratus.) 
h. St. very stout, furrowed, often glabrate. Fr.-sep. 
patent or clasping. 
R. 'jratus Focke. Prk. short, broad-based, patent or slightly 
declining. Lts. at first softly hairy, ultimately nearly bare 
beneath. Pan. with wide spreading few-flowered branches. 
Pet. pink. Luxuriant. 
2. Pan. elongate ; cylindrical or pyramidal. 
a. Pan. pyramidal. Prk. moderate, declining or falcate. 
R. hrocteatua 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. jnercicvs Bagnall.) 
R. rhombifolius Weihe. Lts. rhomboid or ovate, acuminate, 
green or white-felted beneath. Lower pan. -branches long, 
strongly ascending. Flora! organs usually all red. Sep. 
reflexed. (Subsp. of R. villieaulis Koehl.) 
h. Pan. cylindrical, leafy, 
(i.) Prk. weak, somewhat scattered and unequal. Fr.- 
sep. subpatent. 
R. chrysoxylon 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. calvatus'S>\ox. 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.) 
