132 CONTRIBUTIONS FROM .THE NATIONAL HERBARIUM. 
Without stipules and fruit it is impossible to determine the true position of this 
plant, but it seems to be different from all the species ascribed to Central America or 
northern South America. It is well distinguished by the very large, caudate leaves. 
Psychotria panamensis Standley, sp. nov. 
Small tree with glabrous leaves and branches; stipules 4 to 6 mm, long, united only 
at the base, broadly ovate or oval, entire, obtuse, thick and leathery, deciduous, short- 
pubescent on the inner surface near the margins; petioles 1 to 2 cm. long; leaf blades 
obovate to obovate-oblong, rarely ovate, 5.5 to 10 cm. long, 2 to 4 cm. wide, obtuse or — 
rarely acutish, firmly herbaceous, dull green, rather prominently veined beneath; 
peduncles 1 to 1.5 cm. long, stout, the inflorescence corymbose-paniculate, 4 to 5.5 
cm, long, many-flowered, the branches minutely puberulent; flowers capitate at the 
ends of the branches, subsessile before anthesis, but the stout pedicels in fruit 3 to 4 
mm. long; bracts early deciduous; calyx 1.5 mm. long and fully as broad, the limb 
subentire, ciliolate; developed corollas not seen, those in bud glabrous outside; fruit 
globose, 7mm. high, obtusely costate, glabrous; seeds 5 mm, long, smooth, not sulcate 
on the inner surface. 
Type in the U. 8. National Herbarium, no. 677588, collected in the humid forest 
around Los Siguas Camp, southern slope of Cerro de la Horqueta, Chiriquf, Panama, at 
an altitude of 1,700 meters, March 17 to 19, 1911, by H. Pittier (no. 3194). 
Related, apparently, to Psychotria carthaginensis, but distinguished by the large 
fruit, longer petioles, and obtuse leaves. 
Psychotria peperomiae Standley, sp. nov. 
A lowshrub, glabrous throughout; stems stout, the younger ones succulent, branched, 
terete or obtusely angled; stipules 2 mm. long, united to form a truncate sheath, the 
margin marcescent; petioles 4 to 6 mm. long; leaf blades broadly obovate to obovate- 
oval, 2.5 to5 cm, long, 1 to 2.5 cm, wide, obtuse or rounded at the apex, apiculate, the 
tip 1 to 2 mm. long, acute or cuneate at the base, fleshy, inconspicuously veined; 
peduncles chiefly terminal, 1 to 2.5 cm. long, slender, bearing a loosely few-flowered 
corymbose inflorescence; bracts linear, attenuate, brownish, 2 to 3 mm. long; pedicels 
2 to 5 mm. long, slender; calyx 1 mm. long, the 4 lobes longer than the tube, ovate- 
triangular, acute; corolla 5 mm. long, the tube slightly dilated above, the lobes oblong 
or broadly oblong, about one-third as long as the tube, their tips incurved, the throat 
glabrous within; anthers nearly sessile, inserted in the throat of the corolla; fruit sub- 
globose, 3 mm. high, nearly smooth. 
Type in the U. 8. National Herbarium, no. 677632, collected in the humid forest on 
the top of Cerro de la Horqueta, Chiriqui, Panama, at an altitude of 2,265 meters, 
March 18, 1911, by H. Pittier (no. 3235). 
In general form and in the tetramerous flowers most closely related to Psychotria 
crassa Benth.! That species differs in the larger, acuminate leaves, bearded throat 
of the corolla, and longer corolla lobes. 
Psychotria pittieri Standley, sp. nov. 
Shrub; young branches slender, densely pubescent with rather long, coarse, white, 
appressed or spreading hairs; stipules 4 to 6 mm. long, united at the base, bilobate, the 
lobes linear-subulate; petioles 3 to 5 mm. long, slender, pubescent like the branches; 
leaf blades elliptic-oval, 4 to 5.5 cm. long, 1.5 to 2.5 cm, wide, abruptly acuminate or 
attenuate, the tip acute, obtuse to cuneate at the base, herbaceous, deep green on the 
upper surface except along the midvein, there hirsutulous, pale beneath and finely 
pubescent with short appressed hairs, conspicuously veined, the lateral veins parallel 
with many finer veins between them; peduncles terminal, 1.5 cm. long, slender, 
densely covered with soft white hairs, bearing few-flowered panicles about 2 cm. long; 
flowers clustered at the ends of the branches, subsessile; bracts small, linear; calyx 1 
* Journ. Bot. Hook. 3: 227. 1841. 
