ROSACEA. 139 



o.verticillacantha^ Merat ; Baker; R. latehrosa,'De:ieg. ; Jour. Bot. 

 iii. N.S. 170, 71. Cat. Rais. No. 210. R. aspeniata, Deseg. 

 Jour. Bot. iii. 171, and Cat. Rais. No. 214. 

 Rather common. 

 c. II. In two places by the road as you ascend the hill from Penters 



Cross towards St. jMellion village {R. latebrosa). 

 D. III. Hedges near Prospect House, Weston Mills Lane, Pounds and 

 Boxhill, Pennycross. Near Whitleigh. Between Saltash 

 Passage and Ernesettle. In many places in the parish of 

 Tamerton Foliot. 

 IV. Near Thornbury, Fui'sdon and Shalaford, Egg Buckland. Hedge 



near Hemerdon House, Plympton St. Mary. 

 V. Hedge near Harestone, Brixton. 

 The above stations all belong to the latebrosa of Desegiise, which is 

 combined by Baker under vertic'dlacantha. Latebrosa is noticeable for 

 exhibiting a curious development of setae and aciculi on certain parts of 

 the stem, recalling the aspect of the least prickly of the Sinnosissimce 

 group. It is worth noticing here that Woods in his Monograph {Trans. 

 Linn. Soc. xii.) attaches considerable importance to the presence or 

 absence of setse on the stem in discriminating Roses, and I thmk the 

 peculiar armature in the case of latebrosa a character sufficiently im- 

 portant to constitute it at least a variety apart from all our other forms. 



The following stations belong to R. aspernata, Deseg., the other plant 

 placed mider verticillacanthM by Mr. Baker. 



c. II. A bush in a hedge by a secluded narrow lane, a quarter of a mile 

 below Carkeel, on the north ; another in one by the lane leading 

 up from the lodge at Moditonham to the field-path to Kings - 

 mill, 1875. 

 D. III. In hedges by the Plymouth and Saltash Road, between two and 

 three miles from Plymouth ; also in one by Moor Lane, in the 

 same neighbourhood. Sparingly at Woodlands, Budshead, and 

 near Ernesettle. Among copse wood at Warleigh, and in a 

 hedge between Warleigh Old Lane and Warleigh House. This 

 is the Rose Baker refers to in his Monograph as 'extreme' 

 verticillacantha, 'with the calyx-tube prickly as well as the 

 peduncle, and sepals glandulous on the back.' It is a very 

 beautiful Rose. 



p. collina, Jacq. non Baker. 

 Very rare, 

 c. II. Hedge at Calstock ; agi-ees well T\ith specimens of collina sent 



by Deseglise. 

 T>. III. Hedge-bank near Blaxton. Hedge between Tamerton Foliot and 

 Ro borough. 



