50 NEW YORK STATE MUSEUM 
Crataegus contigua Sarg. 
Contiguous thorn 
Rhodora, 5: 115 
Shrub 6-10 feet tall with spreading or ascending branches; 
leaves thin, ovate, acute or acuminate at the apex, rounded or 
broadly cuneate at the base, serrate, with 4-5 distinct, sharp 
pointed or acuminate lobes each side, at flowering time pale green 
and clothed above with short appressed whitish hairs, glabrous 
below, when mature, firm, dark green above, paler below, 1.5-2.5 
inches long, 1-2 broad, petioles slender, glabrous, slightly glandu- | 
lar, 6-12 lines long; flowers on slender glabrous peduncles, calyx 
lobes abruptly narrowed from broad bases, linear, entire or with 
occasional glands toward the base, stamens 20, anthers purple or 
pinkish purple; fruit erect or drooping, subglobose or oblong, 
scarlet, flesh yellow, nutlets 4-5. 
Shaly soil near Lansingburg. Flowers open about the middle 
of May, fruit ripens early in September and soon falls. In our 
plants the flowers open and the fruit ripens two or three weeks 
earlier than in the type and the number of stamens ranges from 
12-19. In no case have I found a flower with 20 stamens. Never- 
theless these variations do not seem to be of sufficient importance 
to warrant a separation of the plants. The unfolding leaves are 
tinged with brownish red. 
Crataegus irrasa Sarg. 
Unpolished thorn 
Rhodora, 5: 116 
Shrub 6-12 feet tall with numerous slender spreading or ascend- 
ing branches; leaves thin, ovate or oval, acute at the apex, cuneate 
at the base, laciniate serrate, when young clothed above with 
appressed whitish hairs, villose below on the midrib and principal 
veins, when mature firm, dark green and shining above, paler or 
yellowish green below, petioles 6-12 lines long, slender, slightly 
margined at the apex, sparingly glandular ; flowers 6-7 lines broad, 
supported on villose peduncles, calyx tube densely villose, its lobes. 
lanceolate, glandular serrate, villose, reflexed, appressed, stamens. 
20, anthers pale yellow; fruit subglobose or oblong, dark red, nut- 
lets 4-5. 
