ROSACEA. 
101 
tures simple. Leaflets roundish or elliptical with irregular ser- 
ratures. R. surculosa Woods. — 3. dumetorum (Borr.) ; leaflets 
hairy on hoth sides flat. Terminal leaflets often nearly cordate. 
R. dumetorum Woods. E. B. S. 20 10. — Fursteri (Borr.) ; 
leaflets more or less hairy not flat. Leaflets concave or keeled, 
hairy on both sides or only beneath. R. Forsteri Sm. E. B. S. 
2611. — See Borrer's detailed account of this very variable spe- 
cies in Hook. Br. Fl. ed. 3.— Hedges and thickets. Sh. VI. VII. 
Dog Rose. 
16. R. bractescens (Woods) ; " calyx-tube globose, prickles 
hooked, leaflets simply serrated downy beneath, bracteas over- 
topping the fruit." I Foods. — Styles woolly. Fr. globose. — Ul- 
verston, Lancash. ; Ambleside, Westm. Mr. TVoods. Sh. E. 
17- R. ccesia (Sm.) ; prickles uniform uncinate, leaflets doubly 
serrate downy without glands, sep. distantly and sparingly pin- 
nate, fr. elliptical smooth. — E. B. 2367. — Difficult to distinguish 
on paper from jff. canina but more resembling R. tomentosa in 
appearance. — In the north. Sh. VI. 
ft Styles united in a column, mostly exserted. 
18. R. systyla (Bast. ?) ; prickles uniform uncinate, leaflets 
simply serrate without glands, sep. sparingly pinnate deciduous, 
central germens stalked, styles hairless, stigmas forming a conical 
head, shoots nearly erect. — E. B. 1895. — Serratures towards the 
upper end of the leaflets usually converging. Germens in the 
centre of the calyx on stalks as long as themselves. Column of 
styles variable in length. L. nearly glabrous or hairy on both 
sides. The strongly arched shoots often rise to the height of 
10—12 feet.— Hedges and thickets. Sh. VI. VII. E. I. 
19- R- arvensis (Huds.) ; prickles uncinate those on the ra- 
muli feeble, leaflets simply serrate deciduous without glands, 
sep. sparingly pinnate deciduous all the germens sessile, styles 
hairless, stigmas forming a round head, shoots trailing. — E. B. 
188.— Hedges and thickets. Sh. VI. VII. 
Tribe V. Pomece. 
15. Crataegus Linn. 
1 . C. Oxyacantha (L.) ; spinose, I. obovate 3 — 4-lobed cut and 
serrate cuneate at the base, fl. corymbose, cal. not glandular, 
styles 1— 3.— E. B. (var. (3. ?) 2504.— It is not improbable that 
the 2 following varieties are distinct species. — a. 1. lobed blunt - 
ish, peduncles and calyces glabrous, styles 1 — 3, fruit oval. 
C. Oxyacantha L., Jacq. — 12. monogyna ; 1. deeply lobed usually 
acute, peduncles and calyces villose, style 1 bent, fruit sub- 
globose. C. monogyna Jacq., Koch. — Hedges and thickets, 
fi, the more common form. T. V. VI. Hawthorn. Whitethorn. 
