CLASS XII. ORDEK HI.] UOSA. 705 



shorter llian the petals, pinnated, with entire pinna), smooth externally, 

 downy within and on the margins. Stii/mas somewhat prominent. 

 Fruit smooth, almost globular, or urceolate, of a blood red or orange 

 colour, crowned with the erect or spreading persistent calyx segments. 



Habitat. — Hedges; Counties of Derry and Down, near the shore ; 

 Hollywood, Belfast harbour. 



Shrub ; flowering from June to October. 



A Fatisfactorily distinct species, according to Mr. Borrer, and inter- 

 mediate in habit and in the size of its leaves between R. spinosissima 

 and R, collina, (3. Woods ; but in its fruit and in the presence of Betse 

 nearer to the former. A variety is mentioned in the Flora Hibernica, 

 which has the leaves smooth on both sides, and appears to have been 

 produced by having been grown on an exposed rocky situation. 



5. R. involu'ta, Sm. (Fig. 801.) Prickly unexpanded Rose. Prickles 

 unequal, crowded, intermixed with seta; ; leaflets doubly serrated, 

 downy, glandulose beneath; petals rolled inwards; calyx segments 

 simple; fruit setose; stem dwarfish. 



English Botany, t. 2068, and fruit t. 2601, fig. 2.— English Flora, 

 vol. ii. p. 378. — Hooker, British Flora, ed. 3. vol. i. p. 231. — R. pim- 

 pinellifolia. — tt. involuta, Ser. MSS. — De Cand. Prod. 2. p. 609. 



Root with wide spreading suckers. Shrub about three feet high, 

 with upright spreading branches. Prickles numerous, crowded, thin, 

 slender, awl-shaped, very unequal, and mixed with setae. Leaves 

 numerous, with the common footstalk bearing a few straight prickles, 

 and hairy, intermixed with glands. Leaflets five to nine, broadly 

 elliptic, nearly smooth above, but hairy and glandulose on the veins 

 and ribs beneath, the margins doubly and sharply serrated. Flowers 

 mostly solitary, wiih the peduncles slightly thickened upwai-ds, and 

 clothed like the calyx tube with numerous seta). Calyx with the 

 segments simple, dilated at the point, or sometimes with one or two 

 small pinnce, and more or less glandular. Petals pale pink, often 

 deeper towards the margin, concave, and but little longer than the 

 calyx segments, seldom more than half expanded. Stigmas pro- 

 truded. Fruit globose, or somewhat urceolate, of a dark red colour, 

 setose, crowned by the persistent calyx segments, attached to the 

 thickened base. 



Habitat. — Hebrides and Western Highlands of Scotland. Near 

 Meggarnie, in Glen Lyon. — Rev. Dr. Stuart Isle of Arran. — Mr. G. 

 Don. Glengariff, County of Cork ij) — Mr. J. Drummond. 



Shrub ; flowering in June. 



This species is intermediate between R. spinosissima and the follow, 

 ing, R. Sahini. From the former it is distinguished by its doubly 

 serrated glandulous leaves and bristly fruit; and from the latter by its 

 dwarfish growth and more crowded prickly branches. 



6. R. Sabi'ni, Woods. (Fig. 802.) Sabiiie^s Rose. Prickles straight, 

 or nearly so, unequal, scattered ; selie few ; leaflets doubly serrated, 

 hairy, glandulous beneath ; calyx with slightly pinnated segments. 



