154 ICOSAND. POLYGYN. 



2. R. spinosissima (Burnet Rose), arms unequal, leaflets plane 

 without pubescence simply serrated. Lindl. p. 50. Lightj'. 

 p. 260. E.B.t.187. 



II AJJ. Dry mountain pastures, as sides of hills by Duddingston Loch,, 

 &c. Llghtf. Links near Cockenzie, with petals red at the base , 

 Mr. Weatherhead and Maugh. Back of Balnarty hill, Fifeshire, 

 and elsewhere, Highlands, Mr. Arnoit. FL June. ^ 



*' A dwarf, compact, dark, (sometimes reddish,) green busji, with 

 creeping roots. Branches short, stiff, much divided, beset by very 

 dense, unequal prickles and setae ; some of the former being usually 

 falcate. Leaves close together, quite free from pubescence j sti- 

 pules either narrow or dilated, of nearly equal breadth ; petioles 

 setigerous and prickly j leaflets about 7, bright green, flat, simply 

 serrated, orbicular or nearly so. Flowers solitary, without bracteas, 

 cyathiform, blush coloured ; peduncles naked, or rough with 

 glands and seta?, as are the calydnc segments, which are short and 

 entire j tube ovate or nearly round, naked j petals emarginate, con- 

 cave j disk not thickened j styles villous, distinct. Fruit ovate or 

 nearly round, black or dark purple, crowned by the connivent or 

 somewhat spreading segments of the calyx." L. 



Mr. Lindley further observes, that this species varies wonderfully with 

 regard to size, the form of the fruit, and the surface of the pedun- 

 cles. The branches are sometimes unarmed, tortuose or straight, 

 sometimes slender, and very prickly the younger they are the 

 more they are armed. 



3. R. involuta (prickly unexpandcd Rose), arms very unequal 

 and crowded, leaflets doubly serrated, petals convolute, fruit 

 bristly. Lindl. p. 56. E/JB. /. 2068. 



HAB. Scotch mountains, Dr. Walker. Glen Lyon, Dr. Stuart. He- 

 brides, Mr. J. M'Kaij. Isle of Arran, G. Don. FL June. Jj . 



Two or three feet high, compact, reddish grey. Branches not much 

 divided, erect, with very strong, dense, unequal, straight prickles 

 and seta, and a cracked bark. Leaves close together, with a slight 

 turpentine smell when bruised ; stipules narrow, somewhat concave, 

 acute, naked, but toothletted and fringed with glands ; petioles 

 hairy, glandular and setigerous, a few straight, longer prickles 

 being interspersed ; leaflets 5 7, concave, ovate, acute or obtuse, 

 doubly serrated, naked above, or nearly so, and opaque, villous 

 beneath with a few pale glands, scarcely distinguishable from the 

 surface. Flowers solitary, without bracteas, red and white j pedun- 

 cle, sphasrical tube of the calyx, and simple calycine segments 

 bristly all over with pungent sette, and clammy glands ; petals ob- 

 cordate, involute - f disk a very little elevated ; unripe fruit crowned 

 by the converging segments of the calyx. 



" This comes nearest R. Sabini, which is however a tall plant, 5 10 

 feet high. When its prickles are mixed with bristles, the largest of 

 the former are falcate ; when there are no bristles they are straight, 



a R. ciphiana, Sibbald. 



