. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. 5i8 Huajillo a thick, pith-Kke tissue; it is lo to 15 cm. long, about cm. wide, oblique at the base and sessile, rough, dull brown, finally splitting through the margin; the seeds are transversely arranged in the pod, oblong-obovate, more or less flattened, 12 to 15 mm. long, half as wide, dull red-brown with a slight depression on each side. The wood is hard, compact, close-grained, dark red or purplish brown, with a
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. 5i8 Huajillo a thick, pith-Kke tissue; it is lo to 15 cm. long, about cm. wide, oblique at the base and sessile, rough, dull brown, finally splitting through the margin; the seeds are transversely arranged in the pod, oblong-obovate, more or less flattened, 12 to 15 mm. long, half as wide, dull red-brown with a slight depression on each side. The wood is hard, compact, close-grained, dark red or purplish brown, with a yellowish sapwood; its specific gravity is about It is highly esteemed for cabinet-work and is one of the most valuable woods of its region, its durabihty in contact with the soil also making it very desirable for fence posts. The green pods are used like beans, and the ripe seeds are roasted and used as a substitute for coffee by the Mexicans and Indians. The genus is monotypic; its name, Siderocarpos, is Greek and refers to the hard, woody pod. III. HUAJILLO GENUS HAVARDIA SMALL Species Havardia brevifolia (Bentham) Small Pithecolobium hrevifolium Bentham SMALL evergreen tree, often merely a shrub, occurring along the Rio Grande in Texas, but more abundant southward in Mexico. Its maximum height is 9 meters, with a trunk diameter of dm. The nearly erect branches are slender and form an irregular tree. The bark is thin, smooth, and gray; the twigs are somewhat angular, light gray at first, becoming dark brown, and bear per- sistent stout, stiff stipular spines about cm. long. The leaves are evenly bipinnate, 7 to 9 cm. long, including the hairy leaf-stalk, which bears a prominent gland; there are 2 to 5 pairs of pinnae to 3 cm. long, nearly or quite sessile, the terminal pair being some- what shorter than the basal; the leaflets, of which there are 10 to 20 pairs, are sessile, oblong, sometimes narrowly so, 3 to 7 mm. long, blxmt or somewhat sharp-pointed, r
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