214 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
rounded at the apex, chartaceous, glabrous, green above, pale beneath, the vena- 
tion prominent or prominulous; racemes 5 to 14 em. long, paniculate, few or © 
many-flowered, the pedicels 5 to 11 mm, long, minutely pilose and densely cov- 
ered with stipitate glands; calyx densely glandular, the tube about 4 mm. 
broad, the lobes oval, entire; petals 8 to 10° mm. long, yellow, with numerous 
sessile or stipitate glands outside on the lower part; stamens longer. than the 
petals, the filaments white-villous below ; fruit 6.5 to 7.5 em. long, about 1.7 cm. 
wide, subsessile, minutely pilose, eglandular, elastically bivalvate. 
Type in the U. 8. National Herbarium, no. 266490, collected in the vicinity 
of Acapulco, Guerrero, Mexico, in 1894 or 1895, by Edward Palmer (no. 505). 
Related to C. mexicana A. Gray as closely as to any of the described Mexican 
species. In that, however, the inflorescence is without glands and the leaflets 
are smaller and more numerous. 
Caesalpinia caladenia Standl., sp. nov. 
Unarmed shrub or small tree, the branches terete, striate, brown or reddish 
brown, with numerous pale lenticels, short-pilose and glandular when young, 
petioles 1.5 to 3 cm, long, short-pilose or glabrate and sometimes glandular ; 
pinnae 2 to 4 pairs; leaflets 3 or 4 (rarely 2) pairs, short-petiolulate, oval, 
elliptic-oblong, or oblong-obovate, 1 to 2.6 cm. long, 0.5 to 1.7 em. wide, rounded 
to subacute at the base and often oblique, rounded at the apex, glabrous, 
slightly paler beneath, chartaceous, with prominulous venation; racemes many- 
flowered, 6.5 to 17 em. long, the pedicels 6 to 16 mm. long, jointed below the 
calyx, densely short-pilose and furnished with numerous reddish stipitate 
glands; calyx tube 5 to 7 mm. broad, pilose and stipitate-glandular, the lobes 
6.5 to 8.5 mm. long, oblong, rounded at the apex, velvety-pilose, glandular on 
the margins; petals 10 to 12 mm. long, glandular outside on the lower portion ; 
stamens equaling or slightly exceeding the petals, the filaments densely white- 
villous except near the apex; fruit 4.5 to 6.5 cm. long, 1.2 to 1.6 cm. wide, sub- 
sessile, straight, densely velutinous and covered with sessile or stipitate glands, 
elastically bivalvate. 
Type in the U. 8. National Herbarium, no. 635473, collected on hills about 5 
miles below Minas Nuevas, Sonora, Mexico, March 12, 1910, by J. N. Rose, P. C. 
Standley, and P. G. Russell (no. 12660). 
Here, also, may be referred the following collections: 
Cotima: Manzanillo, Palmer 1897. Colima, 1891, Palmer F. 
The Colima specimens have somewhat larger leaflets than the type. Caesal- 
pinia caladenia is related to C. acapulcensis, described above, but differs in the 
glandular fruit, larger flowers, and smaller, narrower, more numerous leatlets. 
Caesalpinia sclerocarpa Standl., sp. nov. 
Unarmed tree, the branches slender, brown or grayish, with numerous pale 
lenticels, glabrous; leaves glabrous, usually odd-pinnate, the petioles 1 to 1.6 
em, long, the pinnae 4 or 5, the leaflets 3 or 4 pairs, opposite, short-petioluiate, 
elliptic to oblong, 10 to 18 mm. long, 5 to 9 mm. wide, rounded or obtuse at the 
base, usually slightly oblique, broadly rounded at the apex, chartaceous, the 
costa prominent beneath but the other venation inconspicuous; racemes axillary 
or paniculate, 4 to 7 cm, long, few or many-flowered, dense, the rachis angulate, 
fulvous-puberulent, the pedicels stout, 2 to 38 mm, long; calyx densely fulvous- 
puberulent, the tube 3 to 4 mm. broad, the lobes very unequal, entire, the outer 
one larger than the others; petals about 7 mm. long; stamens equaling the 
petals, the filaments villous below; fruit 3.5 to 8 cm, long, 1.4 to 1.8 cm. wide, 
rounded at both ends, short-rostrate at the apex, blackish, glabrous, borne on a 
stout stipe 5 mm, long, indehiscent, the valves very thick (about 3 mm.) and 
hard. 
