﻿A new Southwestern Rose. 



By E. O. Wooton. 



(Plate 335.) 



The species here described and figured is particularly interest- 

 ing as being the second member of a heretofore monotypic section 

 of the genus Rosa — the Minutifoliae of Crepin. * While agreeing 

 in most particulars with the characters there ascribed to this sec- 

 tion, it can hardly be said to have appendiculate outer sepals, nor 

 is the pubescence of the receptacle long. 



! closely related to Rosa mimitifolia Engelm., it is easily 

 separated from that species by its less numerous and larger hips 

 with fewer and smaller spines. The stellate trichomes, referred to 



in the name I have given it, are most unique and interesting in this 

 genus. 



As an addition to the known wild roses it is of especial interest 

 on account of the size and beautiful coloring- of its flowers. It 

 seems well worthy of cultivation. 



Whil 



fc> 



J Rosa stellata. 



Shrub, 4-6 dm. high, much branched. Stems stiff, beset with 

 numerous straight or slightly curved yellowish spines, young 

 stems closely covered with stellate trichomes which may be scale- 

 like or have a central gland-bearing axis, or this axis may be a 

 well developed spine : leaves small, 1-2.5 cm. long, 3-5-foliolate ; 

 leaflets triangular, 5-7 mm . long and almost as broad, cuneate, 

 apex truncate or slightly rounded, cut into 5-8 large rounded but 

 acute teeth, one sinus frequently reaching to the middle of the 

 leaflet ; stipules oblong, 5-7 mm. long, obtuse, spreading, adnate 

 for about half their length, entire or with 1-2 rounded teeth; 

 leaflets, petiole and stipules covered with a fine spreading silky 

 white pubescence, not glandular : flowers large and showy, soli- 

 tary, 4-7 cm. in diameter, terminal, deep rose-purple ; pedicel 

 short, 1 cm. or less long, stout ; calyx-tube globose, 6-8 mm. in 

 diameter, very finely pubescent and covered with numerous 

 spines : pedicel, calyx tube and spines generally purplish tinged; 

 limb of calyx ovate-lanceolate, 1.5-2 cm. long, 5 mm. broad at 



*Bot. Gaz. 22: 32. 1 ,6. 



( 



