ROSACEA. 
SILVA OF NORTH AMERICA. 
117 
CRATAIGUS UNIFLORA. 
Haw. 
Leaves obovate-spatulate. 
Crategus uniflora, Muenchhausen, Hausv. v. 147. — Du 
Roi, Harbk. Baumz. i. 184. 
Mespilus xanthocarpa, Linneus f. Syst. ed. 13, Suppl. 
254. — Ehrhart, Beitr. i. 182 ; ii. 67. — Burgsdorf, Anleit. 
pt. ii. 146. — Du Roi, Harbk. Baumz. ed. 2, i. 623. — Poi- 
ret, Lam. Dict. Suppl. iv. 67. — Sprengel, Syst. ii. 506. 
Mespilus flexispina, Moench, Béwme Weiss. 62, t. 4; 
Meth. 685. — Wenzig, Linnea, xxxviii. 127. 
Mespilus Oxyacantha aurea, Marshall, Arbust. Am. 89. 
Mespilus laciniata, Walter, 77. Car. 147. — Poiret, Lam. 
Dict. iv. 447. 
Cratzegus parvifolia, Aiton, Hort. Kew. ii. 169. — Will- 
Crateegus tomentosa, Michaux, Fl. Bor.-Am. i. 289 (not 
Linnzus). — Regel, Act. Hort. Petrop. i. 122 (in part). 
Mespilus parvifolia, Willdenow, Hnum. 5238 ; Berl. Bawmz. 
ed. 2, 242. — Spach, Hist. Vég. ii. 55. 
Mespilus axillaris, Persoon, Syn. ii. 39.—Du Mont de 
Courset, Bot. Cult. ed. 2, v. 447. 
Crategus unilateralis, Persoon, Syn. ii. 87.— De Can- 
dolle, Prodr. ii. 629. — Don, Gen. Syst. ii. 599. — Roemer, 
Fam. Nat. Syn. iii. 116. 
Mespilus tomentosa, Poiret, Nouveau Duhamel, iv. 153 
(not Castiglioni). 
Mespilus unilateralis, Poiret, Lam. Dict. Suppl. iv. 73. 
denow, Berl. Bawmz. 85; Spee. ii. pt. ii. 1002. — Pursh, 
Fl. Am. Sept. i. 538.— Elliott, Sk. i. 547.— De Can- 
dolle, Prodr. ii. 627. — Don, Gen. Syst. ii. 598. — Dar- 
lington, F7. Cestr. ed. 2, 291.— Torrey & Gray, Fl. N. 
Am. i. 469.— Dietrich, Syn. iii. 159.— Curtis, Rep. 
Geolog. Surv. N. Car. 1860, iii. 384. — Chapman, FV. 
128. — Watson & Coulter, Gray’s Man. ed. 6, 166. 
Mespilus flexuosa, Poiret, Lam. Dict. Suppl. iv. 73. 
Cratzegus flexuosa, De Candolle, Prodr. ii. 627. — Don, 
Gen. Syst. ii. 598. 
Pheenopyrum uniflorum, Roemer, Fam. Nat. Syn. iti. 153. 
Pheenopyrum parvifolium, Roemer, Fam. Nat. Syn. iii. 
152. 
Mespilus uniflora, Wenzig, Linnea, xxxviii. 128. 
A low shrub, with slender stems one or two feet high; or rarely a bushy tree attaining a height of 
ten or twelve feet, with a short stout trunk ten or twelve inches in diameter and covered with thin ashy 
gray furrowed bark, the surface of which separates into small appressed scales. The branches, when 
they first appear, are coated with thick pale pubescence which often does not disappear until the end of 
their second summer ; they are slender, nearly straight or often zigzag, bright red-brown, dark gray in 
their first year and ultimately dark brown, and are armed with slender straight spmes one to two inches 
in length, and often furnished, when they first appear, with leafy serrate green or red caducous bracts. 
The winter-buds are small, obtuse, and covered by chestnut-brown scales with scarious margins ; 
the scales of the inner ranks are obovate at maturity, glandular-serrate, pubescent, pyriform to sub- 
globose, pale greenish yellow, half an inch long, and caducous. The leaves are obovate-spatulate 
to oblong-cuneiform, rounded at the apex or sometimes abruptly aeute, with short broad points, and are 
gradually contracted below into broad petioles or are sometimes nearly sessile ; they are crenately ser- 
rate, the broad teeth being sometimes tipped with minute dark glands, and are occasionally incisely 
lobed towards the apex; when they unfold they are pilose on the upper surface with pale deciduous 
hairs and pubescent on the lower surface, and at maturity they are subcoriaceous, scabrous, dark green 
and lustrous above, and paler and pubescent below, especially along the midribs and primary veins, and 
vary from an inch to two inches in length and from half an inch to two thirds of an inch in width. 
The stipules are ovate, acute, glandular-serrate, sometimes a quarter of an inch long, and caducous. 
The flowers, which are solitary or rarely geminate and vary from a half to three quarters of an inch in 
diameter, appear from the first of April in Florida to the middle of June at the north when the leaves 
are fully grown ; they are borne on short stout pedicels which are furnished with lanceolate acute glan- 
dular-serrate caducous bractlets, which, like the calyx, are hirsute-tomentose with long pale hairs; the 
calyx is narrowly obconic, with foliaceous lanceolate acute sharply incised and glandular persistent lobes 
