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ROSACEA. 237 
Generally a large straggling bush, 6 to 10 feet high, with tufted 
branches. Leaves shortly stalked, lamina 1 to 2 inches long, nar- 
rowed from beyond the middle to the base, the basal angle 
usually less than a right angle, with slightly convex sides, the 
lobes generally short and blunt, more rarely abruptly acuminated 
into a short point; midrib very prominent beneath, the other 
veins much less so. Stipules on the barren shoots half arrow- 
shaped, denticulate. Corymbs lax, few-flowered. Peduncles long 
and slender. lowers white, # inch across, with the petals scarcely 
contiguous. Fruit ovoid or roundish-ovoid, generally with 2 stones 
embedded in rather soft pulp. Leaves deep green, somewhat 
leathery, very glossy. 
Glabrous White-thorn, or Hawthorn, May. 
French, Alisier aubépine. German, Gemenier Weissdorn. 
Sus-Srecies I.—Crategus monogyna: Jacq. 
PuateE CCCCLXXX. 
C. Oxyacantha, var. 3, Bab. Man. Brit. Bot. ed. v. p. 117. 
Mespilus monogyna, Willd. Wadllr. Sched. Crit. p. 221. 
Leaves rhomboidal or rhomboidal-ovate, with 3 to 5 lobes, 
margins straight or concave from the base to the apex of the first 
lobe, usually entire, except at the tips of the lobes; lobes longer 
than broad, and acute at the apex. Peduncles generally downy. 
Calyx-tube more or less downy; segments slightly downy, ovate- 
triangular, acuminate, suddenly reflexed. Style 1. Fruit with 1 
stone. 
In hedges, woods, thickets, and on heaths. Very common, and 
generally distributed, though probably introduced in many of its 
localities, being the form that is generally used for quickset hedges, 
and planted in pleasure-grounds. 
England, Scotland, Ireland. Shrub or Tree. Early Summer. 
A much-branched bush, with stiff very prickly branches, in 
favourable localities becoming a tree 15 or 20 feet high. Leaves 
much more deeply cleft and less glossy than in C. oxyacanthoides, 
sometimes even pinnatipartite, with acute segments. Peduncles 
and calyx generally clothed with whitish pubescence. Flowers in 
more compact corymbs, more numerous, rather smaller, $ inch 
across, white, rarely pink. Fruit smaller. Leaves with the midrib 
and the veins which run into the main lobes prominent beneath. 
It appears to me that this shrub is entitled to be considered 
distinct from the preceding, though intermediate states occur, which 
render it difficult to agree with the great majority of foreign 
