. 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. 558 Texan Coursetia ously veined. The flowers unfold with the leaves from March to July in short axillary whitish-hairy racemes with sharp bractlets that fall off before the flowers expand. The flowers are purplish, about 15 mrii. long on pedicels about the length of the calyx; calyx-lobes are about equal, ovate and blunt; the disk is cup- shaped and joined to the calyx-tube; the petals are purplish or violet; the standar
. 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. 558 Texan Coursetia ously veined. The flowers unfold with the leaves from March to July in short axillary whitish-hairy racemes with sharp bractlets that fall off before the flowers expand. The flowers are purplish, about 15 mrii. long on pedicels about the length of the calyx; calyx-lobes are about equal, ovate and blunt; the disk is cup- shaped and joined to the calyx-tube; the petals are purplish or violet; the standard is roundish and deeply notched, reflexed, £ind appendaged at the base; wings obhque, oblong, about equaling the incurved keel; stamens 10, one of them sepa- rate; anthers all alike; ovary sessile or shghtly stalked, softly hairy; the style bent inward, bearded above; stigma thick and fleshy; ovules many. The fruit, which ripens in August, is a somewhat flattened 2-valved, leathery pod, light brown and glandular-hairy, the base subtended by the persistent calyx, the apex tipped with the style; the i to 5 seeds are ovoid, about 8 mm. long, dark brown and shining. The wood is hard and strong, but brittle, and dark brown; its specific gravity is about , being considerably heavier than water. It is difficult to work but is sometimes made into canes and is highly prized for fuel. The genus contains but one species; its name is in commemoration of Stephen T. Olney (1812-1878), a prominent manufacturer and amateur botanist of Rhode Island. V. TEXAN COURSETIA GENUS COURSETIA DE CANDOLLE Species Coursetia axillaris Coulter and Rose PROFUSELY branched shrub or small tree several meters tall, known only from the vicinity of San Diego, Texas. The unarmed twigs are zigzag, hairy at first becoming smooth and light gray. The leaves are alternate, clustered on short spur- like branches, odd-pinnately compound, i to 2 cm. long, consisting of 7 to 11 leaf- lets, the lower pair orbicular or
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