242 
POMACEAE. [Vor II. 
6. Crataegus viridis L. Southern Thorn. (Fig. 1996.) 
Crataegus viridis L,. Sp. Pl. 476. 1753- 
C. arborescens Ell, Bot. S. C. & Ga. 1: 550. 1821. 
A small tree with maximum height of about 
30° and trunk diameter of 18’, often without 
spines. Leaves slender-petioled, varying from 
ovate to lanceolate or somewhat obovate, gla- 
brous on both sides or pubescent in the axils of 
the veins beneath, sharply serrate and usually 
somewhat lobed, mostly acute at each end, 1/— 
3/ long; corymbs many-flowered; pedicels and 
calyx glabrous or little pubescent; flowers 6//— 
9’’ broad; calyx-lobes lanceolate; styles com- 
monly 5; fruit globose or oval, about 3/” high, 
persistent into the winter. 
Valley of the Mississippi from Missouri to Louisi- 
ana and Texas, east to South Carolina and Florida. 
Wood hard, reddish-brown; weight per cubic foot 
4olbs. March-April. 
Crataegus viridis nitida Engelm. 
Leaves more shining; fruit larger, glaucous, 
Missouri and Arkansas. Perhaps a distinct species. 
7. Crataegus apiifolia (Marsh.) Michx. Par- 
sley Haw. Parsley-leaved Thorn. (Fig. 1997.) 
Mespilus apiifolia Marsh. Arb. Am. 89. 1785. 
Crataegus aptifolia Michx. Fl, Bor. Am. 1: 287. 1803. 
A shrub or small tree, reaching a maximum height 
of about 25° and trunk diameter of about 3’. Spines 
stout, 1/-2’ long; leaves slender-petioled, broadly 
ovate or nearly orbicular in outline, pubescent on both 
sides at least when young, obtuse or acutish at the 
apex, truncate or slightly cordate at the base, '4/-1 4’ 
long, thin, pinnately and deeply 5-7-cleft, the lobes 
sharply serrate; corymbs numerous, several-flowered, 
the slender pedicels and calyx pubescent; flowers 4//— 
6’’ broad; calyx-lobes linear, glandular; styles 1-3; 
fruit red, oval, 2’’-3/’ long. 
In thickets, Virginia to Florida, west to Missouri and 
Texas. Wood hard, bright reddish-brown; weight per 
cubic foot 46 lbs, March-April. 
8. Crataegus coccinea L. Scarlet Thorn 
or Haw. Red Haw. (Fig. 1998.) 
Crataegus coccinea 1. Sp. Pl. 476. 1753. 
A shrub or sometimes a small tree, reaching a maxi- 
mum height of about 30° and trunk diameter of 1°. 
Spines stout, 11%4’-2’ long; leaves slender-petioled, 
broadly ovate or orbicular, acute or acuminate at the 
apex, mostly truncate or subcordate at the base, thin, 
or becoming firm, very sharply incised and serrate, 
the teeth glandular-tipped, glabrous or very nearly so 
beneath, 2/-3’ long; pedicels, bractlets and calyx 
somewhat glandular-pubesceut; flowers numerous, 
8/’/-14’’ broad; calyx-lobes lanceolate; styles 3-5; fruit 
red, globose or oval, 5’’-8’’ in diameter, rarely hairy. 
Thickets, Newfoundland to Manitoba, south to Florida 
and Texas. Wood hard, reddish-brown; weight per 
cubic foot 53 lbs. April-May. 
Crataegus coccinea flabellata (Spach) Britton, Mem. Torr. Club, 5: 183. 1894. 
Mespilus flabellata Spach, Hist. Veg. 2:63. 1834. 
Leaves cuneate-narrowed at the base, very sharply incised-serrate, thick and shining when old. 
Quebec and New England to the Northwest Territory. Probably specifically distinct. 
