Vol. 39 No. 1 
BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
een 
JANUARY Ig912 
Studies of West Indian plants—IV 
NATHANIEL LORD BRITTON 
16. DENDROPANAX IN THE WEST INDIES 
1. DENDROPANAX ARBOREUM (L.) Dene. & Planch. 
A tree, up to 20 m. high, but usually much smaller and often 
flowering asashrub. Leaves chartaceous, from ovate to obovate, 
mostly acuminate at the apex, narrowed or rounded at the base, 
often 2 dm. long; inflorescence from shorter than the leaves to 
equaling them, or longer, the 20 umbels or fewer racemosely 
arranged and umbellate at the summit, sometimes leafy-bracted, 
but the bracts usually small, ovate to lanceolate; peduncles of 
the umbels slender, ascending, up to 3 cm. long in fruit; pedicels 
11% to 3 times as long as the flowers, somewhat elongating in 
fruit; petals white or greenish; calyx rather sharply toothed, about 
2 mm. wide at flowering time; fruit black, strongly lobed, 6-8 mm. 
thick. 
Widely distributed at lower and middle altitudes in moist 
or wet districts in Jamaica, Cuba, Hispaniola, Porto Rico, and 
on Signal Hill, St. Thomas. Ascends to 1,600 meters in Jamaica. 
>. DENDROPANAX SAMYDIFOLIUM (C. Wright) Seem. 
This species is known to me only from the original specimens 
collected by Wright at S. Felepina near La Grifa, western Cuba; 
Wright's description calls for a tree up to 13 meters high. The 
leaf base is decurrent on the petiole. The species seems very 
closely related to D. arboreum, which is abundant in the mountains 
and hills of western Cuba. 
ee ie neem Se ial ne et ea WH Ne en =u aS ES 
[The BULLETIN for December 1911 (38: 1-v, 531-570. pl. 35) was issued 6 Ja 1912.] 
