282 A CLASSIFICATION OF GARDEN ROSES, 



at is to give a separate number to well-marked types only, and to 

 place under these the subspecies and varieties into which they 

 deviate. Of course I am well aware that in liusa, of all genera, 

 even if independent observers work from the same standing-point, 

 it is not in the least likely that any two of them will draw the line 

 between species and subspecies in the same way. What follows 

 must therefore be taken as a rough draft of a very condensed guide 

 to the determination and classification of the garden types. 



Analytical Key to the Groups. 

 Leaf simple, exstipulate . . . . 1. SmplicifolicB. 



Leaf compound, stipulate. 



Styles forming a column, protruded beyond 



the disc ...... 2. SystylcB. 



Styles not united nor protruded beyond 

 the disc. 

 Stipules nearly free, deciduous . . 3. Banksiana. 

 Stipules adnate above the middle, persistent. 



DiACANTttE. — Main prickles in pairs at the base of the leaves. 

 Fruit persistently pilose .... 4. Bracteatce. 



Fruit glabrous ...... 5. CinnamomecB. 



Heteracanth^. — Prickles scattered, numerous, passing gradually into 

 aciculi and setce. 



Leaves not rugose ; large prickles long and 



slender . . . . . .6. Pimjmiellifolia. 



Leaves rugose, coriaceous; large prickles short 



and stout ...... 7. Centifolia, 



HoMOECANTH^. — PrickUs scattered, comparatively few, subequal. 

 Prickles slender ; leaf not glandular below . 8. Villosm. 

 Prickles stout and hooked ; leaf not glandular 



below ....... 9. CanincB. 



Leaves very glandular beneath . . .10. RuhiginoscB, 



Classified Enumeration of the Garden Species and Subspecies. 



Group I. SlMPLICIFOLI^. 



1. R. simplicifolia Salisb. (= Pi. herberifolia Pallas = Luwea 

 berberifolia Lindl. = Hultheiinia berberifolia Dumont). — Siberia and 

 Persia. 



li. Hardii Paxt. — A hybrid between berberifolia and laxa. 



Group II. Systyl^. 



2. R. repens Scop. {R. arvensis Huds.). — Europe. 



capreulata Neill (the Ayrshire Rose). 



3. R. sempervirens Linn. — South Europe and India. 



prostrata DC. 

 scandens Miller. 



Leschenaultiana Thory & Eedoute. 

 longicuspis Bertol. 



