. 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. Knackaway 823 III. THE KNACKAWAY GENUS EHRETIA PATRICK BROWNE Species Ebretia elliptica de CandoUe ALLED Anaqua by the Mexicans, this small tree, often a shrub, of rich valleys or sterile ridges of western Texas and northern Mexico, attains a maximum height of 15 meters, with a trunk diameter of i dm. The branches are stout, spreading, and ascending, the tree round topped. The bark is often cm. thick, furrowed into pl
. 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. Knackaway 823 III. THE KNACKAWAY GENUS EHRETIA PATRICK BROWNE Species Ebretia elliptica de CandoUe ALLED Anaqua by the Mexicans, this small tree, often a shrub, of rich valleys or sterile ridges of western Texas and northern Mexico, attains a maximum height of 15 meters, with a trunk diameter of i dm. The branches are stout, spreading, and ascending, the tree round topped. The bark is often cm. thick, furrowed into plates, which separate easily into thin, gray or reddish scales. The twigs are round and slender, becom- ing smooth and reddish brown; there is no terminal bud and the lateral buds are very small. The leaves are thick, somewhat leathery, oblong, oval or oblong-ovate, 3 to 5 cm. long, blunt or sharp-pointed, rounded or narrowed at the base, entire wavy or irregularly toothed on the margin, dark green and rough above, paler and more or less hairy, es- pecially on the veins beneath; the leaf-stalk is short, stout, grooved and hairy. Theilowers, which open from au- tumn to spring, are in compact, hairy cymes 2 to 6 cm. across; the ca- lyx is rough and hairy, deeply divided into 5 lanceolate, sharp- pointed lobes 2 to mm. long; the corolla is white, bell-shaped, its tube slightly longer ^'°- rS^--Knackaway. than the calyx, the limb 7 to 9 mm. across, its lobes thin, ovate and rounded; fila- ments awl-shaped, exserted, the anthers heart-shaped; the ovary is i-celled when young; its 2 styles are united for about half their length. The fruit is subglobose, 5 to 8 mm. in diameter, yellow and subtended by the calyx; its flesh is thin, juicy, edible; the 2 nutlets are each 2-seeded; seeds curved, the endosperm fleshy. The wood is hard, weak, brown, close-grained, its specific gravity about It is often planted as a street tree in western Texas and New Mexico, and ad- mired for its
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