20 ROSA PARVIFLORA. 
13. ROSA parviflora. 
R. pumila, stipulis linearibus: aculeis acicularibus, 
foliolis lanceolatis glabriusculis arguté serratis, ca- 
lycibus viscosis. 
carolina Du Rot uharbh, 2. 354. Sm. Insects of 
Georgia 1. 49. ¢. 25° 
R. humilis Marsh. Ark 136. 
R. parviflora Ehr. beitr. 4. 21. Willd. sp. 2. 1068. 
Pers. syn. 2.48. Pursh. am. septr. n. 2. Smith 
in Rees in loc, ? 
. caroliniana Michaux. boreali-am. 1. 295. 
The Pennsylvanian Rose. Lawr. Ros. tt. 3 & 66. 
R. carolina y and 3 Ait. kew. ed. alt. 3. 260. 
Hab. in collium Healivibas Noveboraco Caroline, 
(Pursh). (v. v. cult.) 
= 
~ 
A very low, weak, spreading species. Rootshoots 
with a few setz which quickly disappear ; branches 
slender, reddish-brown, armed with a pair of needle- 
shaped prickles under the stipule; these are quite 
naked, very narrow, a little incurved, with a small flat 
extremity which divaricates; petioles naked; leaflets 
usually 5, somewhat shining, lanceolate, pointed, sim- 
ply and finely teothed, their veins inconspicuous, a 
little hairy on the rib beneath. Flowers pale blush 
usually growing by pairs; bractew oyate, concave, 
pointed, somewhat hairy; peduncles covered wit 
glands and setz, like the tube of the calyx, which is 
round and small; sepals ovate with a very narrow 
point, nearly simple, their edge cottony, back clammy 
and glandular. Petals very numerous in the double 
variety, which is the most common, and which is the 
only one I have had an opportunity of examining. 
The double Pennsylvanian Rose is by far the hand- 
somest of the North American species, and does not 
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