Crxt£qvs. XLVIII. ROSACEiE. 243 



3. A. PUMiLA. Dicarf double-jlowering Almond. — Lvs. lanceolate, doubly ser- 

 rate; fls. pedicellate. — Native of China. A low shrub, highly ornamental, 

 common in cultivation. Stems 2 — 31" high, branching. Leaves 3 — 5' by i — 1', 

 acute at each end, smooth. Flowers very numerous, clothing the whole shrub 

 in their roseate hue, while the leaves are yet small. May, Jn. f 



Suborder 2.— P O M E JE . 



Ovaries 2 — 5 (rarely 1,) cohering with the sides of the persistent 



calyx and with each other. Fruit a pome. 



(5. CRATAEGUS. 



Gr. Kparoi, strength; on account of the firmness of the wood. 



Calj'i urceolate, limb 5-cleft ; petals 5 ; stamens 00 ; ovaries 1 — 5, 

 with as many styles ; pome fleshy, containing I — 5 bony, 1 -seeded car- 

 pels, and crowned at the summit by the persistent calyx and disk. — 

 Trees or shrubs, armed to th thorns. Lvs. simple, often lobed. Bracts 

 subulate, deciduous. Fls. corymbose. 



1. C. cocciN-EA. (C. Crus-galli. Bic. C. glandulosa. Willd.) Crimson- 

 fruited Thorn. White Tharii. — Lvs. broadly ovate, acutely serrate and 



sub (9)-lobed, thin and smooth, subacuminate, abrupt at base ; petioles long, slen- 

 der, and (with the calyx) smooth and subglandular ; sty. 3 — 5. — A thorny shrub 

 or small tree, 10 — 2df high, in thickets, by streams, &c.. Can. and U. S. 

 Branches crooked and spreading, branchlets and thorns whitish. Thorns stout, 

 rigid, sharp, a little recurved, about IJ' long. Leaves 1§ — 2j' long, | as wide, 

 lobed, or (rather) coarsely, doubly acuminate-serrate. Petioles very slender, i 

 as long as the lamina. Flowers white, in paniculate, lateral corymbs of about 

 12. Fruits — 5" diam., bright purple, eatable in Sept. Fls. May. 



2. C. Crus-gallt. (Mespilus. Lam. tf-c.) Cock-spur Thorn. 



Lvs. obovate-cuneiform or oblanceolate, subsessile, serrate, coriaceous, 

 shining above ; spines very long ; corymbs glabrous ; sep. lanceolate, subserrate ; 

 sty. 1 (2 or 3).— Hedges and thickets, Can. and U. S., rare. Shrub 10— 20f 

 high, much branched. Thorns 2 — 3' long, straight, sharp, and rather slender. 

 Leaves 1 — 2i' long, ^ — | as wide, tapering and entire at base, mostly obtuse at 

 apex ; petioles 1 — 5" long. Flowers white, fragrant, in corymbs of about 15, 

 on very short, lateral branchlets. Fruit pyrilbrm, dull red, 2 — 3" diam., per- 

 sistent during winter, unless eaten by birds. Jn. 

 0. pyracanthifoUa. Ait. — Lvs. oblong-lanceolate, petioles J' long. 



3. C. PUNCTATA. Jacq. (C. latifolia. DC. Mespilus. Spach.) Thorn. 

 Lvs. cuneiform-obovate, doubly and often incisely serrate, entire at base 



and narrowed to a petiole, veins straight and prominent, pubescent beneath ; 

 cortimbs and cal. villose-pubescent ; sty. 3 (1 or 2); /;•. globose, punctate. — Bor- 

 ders of woods, U. S. and Can. Tree 12 — 25f high. Branches wide-spreading, 

 crooked, covered with cinerous bark.. Thorns stout, sharp, 1 — 2' long, some- 

 times wanting. Leaves IJ — 2^' long, i as wide, acute or short acuminate; 

 petioles § — 1' long. Flowers white, in somewhat leafy, compound corymbs oi 

 8-— 15. Fruit 5—-^'' diam., red or yellowish, eatable in Sept. Fl. May, Jn. 



4. C. TOMENTOSA. (C. pyrifolia. Ait. C. lobata. Bosc. C. flava. Hook.) 

 Black Thorn. — Lvs. oval, or elliptic-ovate, narrowed at base into a mar- 

 gined petiole, subplicate, incisely and doubly serrate, .smoothish above, tomen- 

 tose beneath; corymbs large, tomentose when young; sty. 3 — 5; fr. pyriform. — 

 Thickets and hedges, Can. S. to K}-. and Car. — A large .shrub, 12— 15f high, 

 armed with .sharp thorns 1 — 2' long. Leaves 3 — 5' long, J — § as wide, acute 

 at apex ; margined petiole i — 1' long. Fls. large, frngrant,white, in a leafy corymb 

 of gt — 12. Fruit 4 — 6" diam., orange-red, eatable but rather insipid. May, Jn. 



0. (Torr. & Gray.) Lvs. strongly plicate, nearly smooth, smaller. 



5. C. OxYCANTHA. Hairthom. English Thorn. 



Lvs. obovate or broad ovate, obtuse, 3 — 7-lobed, serrate, smoothish, shining 

 above; stip. large, incisely dentate; corymbs glabrous; sty. 1 — 3; fr. ovoid, 

 21* 



