ROSACE. SILVA OF NORTH AMERICA. 61 
CRATA&GGUS PRUINOSA. 
Scarlet Haw. 
STAMENS 20; anthers bright rose color. Leaves elliptical to ovate, acute, subcori- 
aceous, dark blue-green. 
Cratzgus pruinosa, K. Koch, Verhandl. Preuss. Gart. ?Crateegus chlorocarpa, K. Koch, Ind. Sem. Hort. Berol. 
Verein. 246 (Crategus und Mespilus) (1854). — Koehne, 1855, 17. 
Deutsche Dendr. 232.— Lange, Rev. Spec. Gen. Cra- Mespilus viridis, K. Koch, Dendr. i. 148 (not Sweet) (1869). 
tegi, 40, f. G. Crategus viridis, Lauche, Deutsche Dendr. ed. 2,573 (not 
Mespilus pruinosa, Wendland, Flora, 1823, pt. ii. 701. Linnezus) (1883). 
Phzenopyrum pruinosum, Roemer, Fam. Nat. Syn. iii. Cratzgus coccinea pruinosa, Dippel, Handb. Laubholzk. 
154 (1847). iii. 436 (1893). 
A nearly glabrous tree, from fifteen to twenty feet in height, with a stem a few inches in diameter 
covered with thin bark separating into large loose pale gray scales, and spreading horizontal branches 
forming a broad open irregular head; or often shrubby with several intricately branched stems. 
The branchlets are slender, nearly straight, marked by oblong pale lenticels, and armed with numerous 
stout nearly straight light chestnut-brown spines from an inch to an inch and a half in length; when 
they first appear the branchlets are dark green more or less tinged with red, and gradually growing 
darker they are bright red and lustrous during their first winter, pale gray-brown in their second year, 
and ultimately ashy gray. The leaves are elliptical, acute, gradually or abruptly narrowed and cuneate 
at the entire base, irregularly and often doubly serrate above, with glandular straight or incurved 
teeth, and divided into three or four pairs of short acute or acuminate lateral lobes; when they unfold 
they are bright red and glabrous with the exception of a few short caducous hairs on the upper side of 
the base of the midribs; and nearly fully grown when the flowers open from the middle to the end of 
May, they are then membranaceous and bluish green; in the autumn the leaves are subcoriaceous, 
dark blue-green and often glaucous on the upper surface, pale on the lower surface, from an inch to an 
inch and a half long and from three quarters of an inch to an inch wide, with midribs only slightly 
impressed on the upper side and three or four pairs of thin primary veins running to the points of 
the lobes ; they are borne on very slender glandular petioles slightly winged at the apex by the decurrent 
bases of the leaf-blades and from an inch to an inch and a quarter in length, and in early spring 
and in the autumn often bright red. The stipules are linear, straight or falcate, deeply divided into 
slender teeth tipped with large dark glands, and often nearly half an inch long. On leading shoots 
the leaves are broadly ovate, often rounded at the base, more coarsely dentate and more deeply lobed 
than the leaves of lateral branchlets, and frequently two inches and a half long and wide, with stouter 
and more broadly winged petioles. Late in the autumn the leaves turn dull orange-red. The flowers 
are produced on long pedicels, in few-flowered thin-branched compound corymbs, with linear showy red 
glandular bracts and bractlets. The calyx-tube is broadly obconic and the lobes are gradually narrowed 
from wide bases, long-pointed, and finely glandular-serrate only below the middle. There are twenty 
stamens? with large light rose-colored anthers, and five styles surrounded at the base by a thick ring of 
hoary tomentum. The fruit, which is borne in few-fruited drooping clusters on long thin light green 
but ultimately bright red pedicels, is five-angled, apple-green, and covered with a glaucous bloom until 
1 Lange (Rev. Spec. Gen. Crategi) describes the number of Copenhagen, sent to the herbarium of the Arnold Arboretum by 
stamens as ten to fifteen, but fruiting specimens from the Arbore- Lange’s son, have twenty stamens. 
tum at Charlottesburg, connected with the Agricultural College at 
