Part 21 (1/2)

* Calyx, stipules, bracts, etc., often glandular. (=A.=)

=A.= Flowers and fruit often over 6 in a cl.u.s.ter. (=B.=)

=B.= Leaves usually abrupt at base 1.

=B.= Leaves usually attenuate at base 2.

=A.= Flowers and fruit few, 1 to 6 in a cl.u.s.ter 10.

* Calyx, etc., without glands (No. 4 has glandular teeth to the calyx); flowers many in a cl.u.s.ter. (=C.=)

=C.= Leaves more or less tapering at base. (=D.=)

=D.= Leaves generally lobed; cultivated, rarely escaped 3.

=D.= Leaves rarely lobed; native. (=E.=)

=E.= Leaves small, s.h.i.+ning, crenate at the end 5.

=E.= Leaves villous or p.u.b.escent, at least when young 9.

=E.= Leaves smooth or only downy at the axils, acutely serrate. South 7.

=C.= Leaves usually abrupt at base, sometimes cordate. (=F.=)

=F.= Leaves downy when young. (=G.=)

=G.= Leaves usually lobed 4.

=G.= Leaves rarely lobed; veins very prominent 8.

=F.= Leaves quite smooth 6.

[Ill.u.s.tration: C. coccinea.]

1. =Crataegus coccinea=, L. (SCARLET-FRUITED THORN.) Leaves bright green, smooth, thin, roundish-ovate, sharply cut-toothed or lobed, on slender petioles. Branches reddish, villous-p.u.b.escent; spines stout, chestnut-brown. Flowers large, to 2/3 in., many in a corymb, on glandular peduncles. May to June. Fruit scarlet, round or pear-shaped, in.; ripe in September, with from 1 to 5 cells and seeds. Tall shrub or low tree, 10 to 25 ft. high, in hedges and woods; common from Canada to Florida.

Var. _mollis_ has the shoots densely p.u.b.escent; leaves large, slender-petioled, cuneate, cordate or truncate at base, usually with acute narrow lobes, often rough above, and more or less densely p.u.b.escent beneath. Flowers large, 1 in.; fruit light scarlet with a light bloom, 1 in. broad.

[Ill.u.s.tration: C. Crus-galli.]

2. =Crataegus Crus-galli=, L. (c.o.c.kSPUR THORN.) Leaves smooth, thick, s.h.i.+ning above, wedge-obovate, finely serrate above the middle, with a short petiole. There are broad and narrow-leaved varieties. Flowers large and numerous, in lateral corymbs. May to June. Fruit globular, 1/3 in. broad, dull red; ripe in September and October. A small tree with a flat, bushy head, horizontal branches, and long, sharp thorns. Wild and common throughout, and often planted.

[Ill.u.s.tration: C. oxyacantha.]

3. =Crataegus oxyacantha.= (ENGLISH HAWTHORN.) Leaves obovate, smooth, wedge-shaped at base, cut-lobed and toothed above. No glands. Flowers medium-sized, in., single or double, white, rose, or pink-red, numerous in corymbs. In spring. Fruit coral-red, 1/3 in.; ripe in autumn. A small tree or shrub, fine for lawn; from Europe; also escaped in some places.

[Ill.u.s.tration: C. apiifolia.]

4. =Crataegus apiifolia=, Michx. (PARSLEY-LEAVED THORN.) Leaves small, ovate, with a broad truncate or heart-shaped base, pinnatifid into 5 to 7 crowded, irregularly toothed lobes; white and soft-downy when young, smoothish when grown; petioles slender. Flowers medium-sized, in., many in a corymb, white. May to June. Fruit small, 1/3 in., coral-red, ripe in autumn. A handsome, low (10 to 20 ft. high), spreading tree, with flexible branches and white-downy twigs. Virginia and south, in moist woods.