TREES AND SHRUBS 



Native of England and Ireland, rare in Scotland. Known as Ayrshire Rose. 

 Syn. B. repens. 



DOG ROSE, Rosa canina. 



Hedges, thickets, gardens. Useful for covering unsightly fences or vfdXh. 

 It is a valuable stock for grafting purposes. June, July. 



Flozvers pink or white, usually fragrant, solitary or 3-4 in a corymb; 

 Sepals 5, pinnate, reflexed, tube persistent, lobes imbricate in bud ; Petals 

 5; Stamens numerous, inserted on the disk; Carpels many, sunk in calyx- 

 tube, styles distinct, hirsute, stigma thickened; Frtiit a cynarrhodium, ovoid 

 or sub-globose, scarlet-crimson, polished, cavity hairy, containing 20-25 achenes 

 ("stones"), each angular, yellowish, hairy, flesh-orange, sepals deciduous, bracts 

 persistent. 



Leaves alternate, leaflets 5-7, ovate, acute, serrate or biserrate, eglandular, 

 glabrous beneath. 



A deciduous sknob, 3-6 ft. ; Branches arching, prickles falcate or equal, 

 hooked ; Rootstock woody, suckers often produced ; Buds flattened, scales 

 green, tipped with red. 



Native of Britain. Hooker says, " In its common form this is the largest 

 and freest growing of British roses, and may be distinguished from R. spinosis- 

 sima by the hooked prickles and habit, from B. pilosa by being more 

 glabrous, from R. rubiginosa by being eglandular, and from R. arvensis by 

 the free styles." 



Insects injurious to Roses, wild and cultivated : — Floive^s — Rosechafer 



{Centonia atirata). Garden Chafer {Phyllopertha horticola). Brown Weevil 



{Otiorhynchus sulcatus); Leaves and Shoots — Green Fly {Siphonophora 7-osce), 



Leaf-cutter Bee {Megachile ceiituncularis), Banded Saw-fly {Empkytus cinctus). 



Leaf-rolling Saw-fly {Lyda inariita), many other Saw-fly larvae, including the 



Genera Eriocampa, Blcnmocampa, and Hylotoma ; among Moth larviK are 



the Lackey Moth {Bombyx neustria), Vapour Moth {Orgyia a?ttiqua), \^'^inter 



Moth {Cheimatobia brimiata), and several Tortricina and T'ineina. 



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