480 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
Zanthoxylum setulosum P, Wils., sp. nov. 
A tree, 10 to 15 meters high, with the twigs, rachis, petioles, foliage, and 
branches of the inflorescence hispidulous; branches unarmed, or armed with 
prickles 2 to 2.5 mm. long; leaves odd-pinnate, 15 to 35 cm. long; leaflets 17 
to 21, opposite or subopposite, oblong-lanceolate, 3 to 7 cm. long, 1 to 1.8 em. 
broad, long-acuminate at the apex, inequilateral and more or less acute at the 
base, dark green and hispidulous (especially along the midrib) above, paler 
and hispidulous on the midrib and veins beneath, sessile, the nrargin crenulate; 
glands bordering the margin pellucid; inflorescence paniculate; flowers un- 
known; sepals 5, hispidulous; immature follicles 5. 
Type in the U. S. National Herbarium, no. 678564, collected on rocky ex- 
posed slopes along the Chagres River above Alhajuela, Province of Panama, 
Panama, May 138, 1911, by H. Pittier (no. 8515). 
THEACEAE. 
A NEW SPECIES OF EURYA FROM PANAMA. 
Eurya seemanniana Pittier, sp. nov. 
A tree of medium size; bark of twigs smooth and sparsely verrucose on 
older parts, densely hairy on young growth. 
Leaves petiolate, subcoriaceous; petioles hairy, canaliculate, 1.5 cm. long, ob- 
scurely decurrent; leaf blades ovate-lanceolate, acuminate, decurrent to the base 
of the petiole by 2 narrow hairy wings, 7 to 10 cm. long, 2.5 to 4 em. broad, 
glabrous above, with salient veins, silky-pubescent beneath, the margin entire. 
Flowers polygamous, pedicellate, in clusters of 3 or 4 in the axils of the 
leaves, or in former foliate buds, opening one at a time in each cluster ; 
pedicels 3 to 8 mm. long, hairy, provided at the base with a small ovate-acu- 
minate tomentose bract about 3 mm. long; bractlets suborbicular, about 2 mm. 
long and 3 mm. broad, hairy outside, sepal-like and adherent to the calyx; 
sepals ovate-rounded, 4 mm. long and broad, coriaceous, silky-hairy outside; 
petals connate at base, oval, more or less rounded and reflexed at the tip, 6 
to 8 mm. long, glabrous, white; stamens 23 to 25, 4 or 5 adherent to the base 
of each petal, about 2.2 mm. long, reduced to filaments in fertile flowers; 
pistil 3.5 mm. long; ovary ovate, attenuate to a short style; stigmas 3, ovate 
acuminate, white, divided to the base. 
Fruit not known. 
Type in the U. S. National Herbarium, no. 677040, collected on the edge of 
pastures around El Boquete, Chiriquf, Panama, altitude 1,000 to 1,300 meters, 
in flower, March 3, 1911, by H. Pittier (no. 2944). 
This species is probably the plant collected by Seemann (no. 1153) in the 
same locality and left unnamed by him. It is nearly related to H. sericea 
(Humb. & Bonpl.) Szysz., but differs in having the leaves smaller, with entire 
margin and a winged petiole, in its pedicellate flowers, and in its short hairy 
calyx. 
SAPOTACEAE. 
THE CENTRAL AMERICAN SPECIES OF LUCUMA. 
On several occasions ® I have described species of Lucuma proceed- 
ing from various parts of Central America, but mainly from Panama. 
Further studies with reference to a few of these trees have shown that 
*Contr. U. S. Nat. Herb, 18: 457. 1912; 18:85. 1914; 18: 166. 1916. 
