238 MB. J. a. baker's MONOGRApn or British roses. 



petals fall, and not disarticulated till it has turned red. Styles 



villose, 



North Yorkshire, hedges at Sowerby, near Thirsk. 



The variety o^ canina that comes nearest to puJveridenta. 



Var. MARGiNATA (Wallr.), 



R. MARGIXATA3 Wallr. Ann, Bot. p. 68; Tratt. Man. ii. no. 144; 

 Roth, Enum, i. p. 455 ; Rent, Cat, p. 66. 



R. TRACHYPHYLLA, Wtrfg. Exsic, 23, 23 bis, 233. 



R. TRACHYPHYLLA, vur. NUDA, Gren. Jura, p. 214. 



R. Blondeana, Ripart in Deseg. Mon, p. 93; Baker, Review, p. 34; 



Deseg. Exsic. 52. 

 R. TRACHYPHYLLA, var. Bloxdeana, Dumort. Belg, p, 59. 

 R. TOMENTOSA, var. b, Rapin, Vaud Guide, edit. 2, p. 192. 



Prickles considerably more slender and less hooked than in 

 ordinary canina. Branches dark purple and glaucous in expo- 

 sure. Leaves oblong, glaucous-green above, very pale beneath, 

 and the veins unusually prominent ; the serrations copiously 

 compound, both sides quite without hairs, the lower ones plainly 

 glandular on the principal veins; the petiole glanduloso- setose, 

 but not at all pubescent, with 3 or 4 slender, slightly curved 

 aciculi. Flowers not more than 3 or 4 tosfether. Peduncles 



laiutly aciculate. Fruit obovate or subglobose, ripening early 

 iu September. Sepals moderately compound, thinly glandular 

 on the back, ascending after the petals fall, becoming disarticu- 

 lated by the time it has turned red. Styles moderately hairy. 



North Yorkshire, hedge at Kilvington, near Thirsk ; and simi- 

 lar plants, but Avith the petiole slightly hairy, gathered in Derry 

 by Dr. Moore, in the Isle of Arran by Prof. Babington, and in 

 Caernarvonshire by Mr. Lees and Prof. Babington, some of them 

 A^ ith the calyx-tube aciculate as well as the peduncle. I have 

 not seen original specimens from AVallroth ; but our plant quite 

 agrees with what I have received from Dr. Eapin as his margi- 

 nala. The prickles are scarcely more hooked or more robust 

 than in ordinary tomentosa^ with which it also agrees in its fruit 

 and sepals. 



Group 5. SxsTTLJE. 



12. R. STYLOS A, Desv, Frutex altus, ramis elongatis arcuatis, aculeis 

 pleriscjue aequalibus falcatis deorsum vakle incrassatis, foliolis simpU' 

 citer serratis supra glabris infra leviter pubcscentibus eglandulosis, 



