236 ENGLISH BOTANY. 
GENUS XV—-CRAT AGUS. (Zinn.), Lindley. 
Calyx-tube urceolate, adhering to the ovary; lamina superior, 
divided into 5 short lobes or teeth. Petals 5, inserted in the throat 
of the calyx, orbicular, spreading. Stamens numerous, inserted 
with the petals. Ovary inferior, 1- to 5-celled, each cell containing 
2 erect ovules. Styles 1 to 5, distinct. Fruit ovoid, with the calyx- 
segments deciduous or persistent and withering, open at the apex, 
where there is a concavity narrower than the widest part of the — 
fruit ; fleshy, containing 1 to 5 bony stones or pyrenes immersed in 
the pulp, and each containing a single seed. 
Small spiny trees or shrubs, with simple leaves which are often — 
cut or lobed, and white or pink flowers in corymbose cymes, rarely 
solitary. Bracts deciduous. 
This genus is named from the hardness and toughness of its wood —xparoc (cratos), 
strength. 
SPECIES I—CRATMGUS OXYACANTHA. Linn. 
Puates CCCCLX XIX. CCCCLXXX. 
Branches with short spines. Leaves stalked, wedge-shaped at 
the base, more or less deeply lobed, glabrous. Flowers numerous, — 
in a corymbose cyme. Calyx-segments not glandular. Styles 
1to 3. Fruit small, ovoid or sub-globular, dark red. 
Sus-Srecrzes I.—Crategus oxyacanthoides. Thuiil. 
Pirate CCCCLXXIX. 
C. Oxyacantha, var. a, Bab. Man. Brit. Bot. ed. v. p. 116. 
C. Oxyacantha, Linn. (Jacq.). Koch, Syn. Fl. Germ. et Helv. ed. ii. p. 258. Fries, 
Sum. Veg. Scand. p. 42. Gr. & Godr. Fl. de Fr. Vol. I. p. 567. 
Mespilus Oxyacantha, Willd. Wallr. Sched. Crit. p. 219. 
Leaves obovate or rhomboid-obovate, with 3 to 5 lobes, margins | } 
slightly convex from the base to the apex of the first lobe, usually 
serrated; lobes scarcely longer than broad, generally rounded. 
Peduncles commonly glabrous. Calyx-tube glabrous; segments 
glabrous, ovate-deltoid, acuminate, spreading-reflexed, with recurved — 
points. Styles usually 2or 3. Fruit with 2 or 3 stones. 
In hedges and woods. Not very common; plentiful in the forests — 
to the north of London; as Enfield Chase, Epping, Hainault, and — 
Whittlebury Forests. 
England, Scotland, Ireland. Shrub or Tree. Early Summer. 
