256 
That the descriptions of Ehrhart’s /wcida and Marshall's 
humilis have been generously dealt with is evident from a perusal 
of the current text books and manuals. The multiplicity of forms 
have been disposed of after a Procrustean fashion. In order, 
therefore, that the reader may understand what is proposed, the 
leading characters of the Group will be given, followed by those 
.of the species with its varieties, for much of which I am largely 
indebted to M. Crepin* and Dr. Watson.t 
GROUP CAROLINA : STYLES DISTINCT ; STEMS WITH INFRASTIPULAR SPINES, OFTEN 
PRICKLY ; SEPALS DECIDUOUS ; CALYX, RECEPTACLE AND PEDICEL HISPID ; FRUIT 
GLOBOSE. 
Leaflets five to nine, coarsely toothed; fruit remaining plump during winter. 
Rosa humilis, Marshall. Stems usually low (1 to 3 ft.), rather 
slender, with straight slender spines, spreading or sometimes re- 
flexed; stipules narrow, rarely dilated; leaflets usually thin, some- 
times glabrous, but commonly more or less pubescent, as also the 
rachis; flowers corymbose or often solitary; sepals lobed; fruit 
depressed globose, reddish. (R. parviflora, Ehrh.) 
Var. LUCIDA, n. v. Stems taller, with stout, curved or reflexed 
spines, rarely straight; stipules usually dilated, sometimes round- 
ed, margins serrulate or more deeply toothed; leaflets thicker, 
smooth and shining above, more or less pubescent beneath; 
sepals slightly lobed or entire; fruit dark red. (R. /ucida, Ehrh., 
in part.) 
Var. VILLOSA, n. v. Stems low, seldom over 2 ft. high, upper 
third zigzag, often greenish; stem and branches covered with 
brownish prickles much shorter than the usually straight spines ; 
leaflets thick, smooth and shining above, villous-pubescent be- 
neath; rachis pubescent, slightly glandular, its nodes surrounded 
by villous tufts ; stipules narrow, margins glandular-ciliate ; sepals 
long, often foliaceous, pinnately lobed; fruit yellowish red. ¢ 
* Primitia Monographie Rosarum. 
t loc, cit. 
t Var. vid/osa is usually well-marked, but forms occur which show a reversion to 
the type, with thinner leaves, less villous, less glandular, prickles few or absent, spines 
often elongated, : 
