434 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
third the distance to the base, the tube cylindric-campanulate, the lobes oblong- 
linear to narrowly triangular, acuminate; corolla yellow, the tube slenderly 
cylindric, dilated in the throat for about 6 mm., 35 to 45 mm. long, about 1 mm. 
in diameter, puberulent within; corolla lobes elliptic to narrowly elliptic- 
lanceolate, 10 to 12 mm. long, 2 mm. wide or less, acuminate, conspicuously 
veined, spreading or somewhat refiexed, puberulent at the base on the inner 
surface; corolla tube bearing at the base outside a cuplike appendage adherent 
to the tube, this 1.25 mm. high, with obtusely 5-toothed margin; anthers sessile, 
broadly oblong, united by their edges, 1.25 mm. long, not appendaged; style 
stout, 20 to 22 mm. long, puberulent, flattened and very narrowly winged; 
stigma capitate, 1.5 mm. in diameter and about as high, convolute and tubercu- 
late on the upper surface; capsules sessile, 11 mm. long, 2 mm. in diameter. 
linear-oblong in outline, acutish at the base, tapering gradually to the base of 
the style. 
Type in the U. S. National Herbarium, no. 365960, collected in the Helechales 
del General, Diqufs Valley, Costa Rica, altitude 700 meters, February 2, 1898, 
by H. Pittier (Inst. Fis. Geogr. Costa Rica, no. 12010). 
Related to Leiphaimos aphylla (Jacqg.) Gilg, one of the most widely dispersed 
members of the genus. That species has much broader and shorter corolla lobes 
and free anthers. 
Leiphaimos oreophila Standley, sp. nov. 
Stems slender, terete, glabrous, erect, simple, 6 to 8 cm. high, commonly 
twisted, one-flowered; cauline scales usually 5 pairs, 5 mm. long, connate for 
half their length, the free portion lance-oblong or narrowly triangular, acumi- 
nate, glabrous; peduncles stout, 3 to 11 mm. long; calyx tubular, somewhat 
inflated by the maturing capsule, 6 mm. long, 1.5 mm. in diameter, the teeth 
one-half as long as the tube or less, triangular, acute or acutish, a discoid gland 
borne inside the calyx near the base, one below each lobe; corolla apparently 
yellow, the tube cylindric, 11 mm. long, 1.5 mm. in diameter, dilated in the 
throat; corolla lobes 6 to 8 mm. long, linear-oblong or oblong, obtuse or acutish: 
anthers sessile, oblong or oblong-cuneate, 1 mm. long, each lobe with a slender 
pubescent appendage slightly longer than the body of the anther; style slender, 
6 to 7 mm. long; stigma discoid, obscurely tuberculate, 1 mm, in diameter ; 
capsule lanceolate in outline, attenuate upward, 5 mm. long, sessile. 
Type in the U. 8S. National Herbarium, no. 600079, collected around San 
Andrés de la Sierra, western slope of the Cordillera de Santa Marta, State of 
Magdalena, Colombia, altitude 1,100 to 1,300 meters, June 1 to 6, 1906, by H. 
Pittier (no. 1676). 
Because of its appendaged anthers this falls at once into the subgenus Leian- 
thostemon, but it differs from the species heretofore included in that group 
in having the anthers sessile. It slightly resembles L. sulphurea (Progel) Gilg, 
but the form of the corolla and calyx is very different. Leiphaimos oreophila 
has a higher altitudinal range than most species of the genus, the greater 
number of them being natives of lowland forests. 
THE GENUS SOMMERA. 
The genus Sommera, a member of the Rubiaceae, was published 
by Schlechtendahl in 1835,' a single species, S. arborescens, being 
described, based upon a plant collected in Mexico by Schiede. An- 
*Linnaea 9: 602, 1835, 
