532 MALACEAE 
long: hypanthium usually densely white-woolly : petals spatulate or linear-spatulate, 6-14 
mm. long, 2-3 times as long as the sepals: pome globose, 6-8 mm. in diameter. 
In swamps and moist soil, New Brunswick to Manitoba, Florida and Louisiana. Spring. 
3. Amelanchier spicata (Lam.) Dec. A shrub usually 3-6 dm. tall, the foliage and 
inflorescence glabrous at maturity. Leaf-blades oval or broadly elliptic, 2-4 cm. long, 
serrulate or dentate-serrate, sometimes toothed only above the middle, rounded at both 
ends, or sometimes abruptly pointed at the apex, or subcordate at the base : racemes 4-10- 
flowered : pedicels 1-2.5 em. long : sepals nearly triangular: petals 4-8 mm. long: pomes 
about 6 mm. in diameter. 
In rocky places, New York to North Carolina. Spring. 
4. Amelanchier rotundifdlia (Michx.) Roem. A tall shrub, or a small tree, gla- 
brous throughout, at least at maturity. Leaf-blades broadly oval, ovate or suborbicular, 
4-8 cm. long, obtuse or rounded at both ends, or sometimes abruptly pointed at the apex or 
often cordate, serrate, the teeth often incurved : racemes several-flowered : pedicels 2-4 
em. long: sepals lanceolate: petals 10-16 mm. long: pomes 6-8 mm. in diameter. 
In woods and thickets, New Brunswick to Minnesota and North Carolina. 
6. CRATAEGUS L.! 
Small trees or shrubs, usually armed with thorns or spines. Leaves alternate: blades 
simple, petioled. Flowers terminal, eymose or corymbose. Hypanthium cup-shaped or 
campanulate, adnate to the carpels. Sepals 5, reflexed after anthesis. Corolla white or 
pink. Petals 5, spreading, rounded, inserted on the margin of the disk in the throat of the 
hypanthium. Stamens 5-25, inserted in 1-3 rows on the edge of the hypanthium: fila- 
ments slender, incurved : anthers oblong or suborbicular, white, yellow, pink or purple. 
Ovary inferior, or its summit free, composed of 1-5 carpels: styles 1-5, not united, per- 
sistent: stigmas terminal. Pome globose, pyriform or oval, yellow, orange-red, blue or 
black, containing 1~5 bony carpels, each usually l-seeded. Seed erect, the testa mem- 
branous. Haw. The plants bloom in the spring. 
Lateral or ventral faces of the nutlets grooved or hollowed. I. TOMENTOSAE. 
Lateral or ventral faces of the fertile nutlets plane or plano-convex. 
Hypostyle short and broad, upwardly and dorsally extended over 
the apex of the nutlets. 
Fruit small, bright scarlet at maturity. E CORDATAE. 
Fruit about 1 cm. in diameter, blue at maturity. UI. BREVISPINAE. 
Hypostyle confined to the ventral or lateral surfaces of the nutlets, 
abruptly terminated at the apex. 
a. Corymbs simple, 2-5-flowered, glabrous, expanding in Febru- 
ary and early March : fruit globose, red or orange-red, ripen- 
ing from May to July. IV. AESTIVALES. 
b. Corymbs compound, many-flowered, usually glabrous (pilose 
in nos. 13 and 16), stamens normally 20: fruit red or yellow, 
z less pn 1 ee Y: P dep T : V. VIRIDES. 
c. Corymbs simple, 3-7-flowered, glabrous or sparsely pubescent : 
PM — 10: fruit gone pe 5 : : VI. SILVICOLAE. 
. Corymbs few-many-flowered, glabrous or pubescent: stamens 
20: fruit globose or oval, red or set VII. PUNCTATAE. 
e. Corymbs 4-10-flowered, glabrous: stamens 10: fruit glabrous, 
at maturity red, red and yellow or clear yellow, the flesh 
firm: leaf-blades broadly ovate, oval or obovate, those of IANAE. 
the shoots frequently deltoid-ovate, eventually glabrous. VIII. BOYNTON 
f. Corymbs 4-10-flowered, glabrous or very nearly so: stamens 
20: fruit glabrous, 15 mm. in diameter or less, at maturity 
yellow, orange, green or red, the flesh firm: leaf-blades gla- a 
Le Pg grown, Pipe forint eed tic = pic bg 
obova IT. n i incised in 
A Oy” serrate and shallowly incised (deeply ine IX. SARGENTIANAE. 
g. Corymbs similar to those of the next preceding section : fruit 
ne oval, Urbini ge or globose : Lends d 9 us 
acutely incised or with nu rrate rounded 1o ike 
eei. ipae X. PULCHERRIMAE. 
h. Corymbs 1-, 2- or 3-flowered, or frequently 5-7-flowered, the 
pedicels and hypanthium either glabrous, pubescent or to- 
mentose: fruit glabrous, yellow, green, orange or red, the 
flesh usually soft, and pleasant to the taste: leaf-blades 
various in outline, serrate, crenate, dentate or entire, pubes- 
cent or glabrous: branches often pendulous. 
esented 18 
!Contributed by Mr. C. D. Beadle.— The treatment of the genus here pr es taken 
based only on the material at the Biltmore Herbarium, supplemented by brief not 
at several of the leading herbaria. C. D. B. 
