. 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. Fig. 318. — Heller's Hackberry. least above the middle, mostly heart- shaped at the base, dark green and very rough on the upper surface, finely gray- hairy on the lower and rather strongly netted-veined; their stout stalks vary from 3 to 10 mm. in length. The fruit is nearly globular, 7 to 10 mm. in diameter, light brown and shining, its curved stalk i to cm. long. 9. DOUGLAS' HACKBERRY Celtis Douglasii Flanchon This
. 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. Fig. 318. — Heller's Hackberry. least above the middle, mostly heart- shaped at the base, dark green and very rough on the upper surface, finely gray- hairy on the lower and rather strongly netted-veined; their stout stalks vary from 3 to 10 mm. in length. The fruit is nearly globular, 7 to 10 mm. in diameter, light brown and shining, its curved stalk i to cm. long. 9. DOUGLAS' HACKBERRY Celtis Douglasii Flanchon This tree inhabits river valleys in Idaho, Oregon, Washington, and British Columbia, south to Utah cind Colorado, and much re- sembles the Thick-leaved hackberry of the southwest, with which it has been confused, and it is also closely related to the eastern Celtis occidentalis. It attains a height of about 7 meters, but is usually lower, and commonly a mere shrub. The bark is bright brown and rough, the young twigs hairy. The leaves are ovate to ovate-lanceolate, 10 cm. long or less, pointed, often long-pointed, rough above, rather strongly netted-veined beneath; their stalks are hairy and short, usually not more than 6 mm. long. The flower-stalks are slen- , , „ ,, der, equalling or ^ or 4 times as long as the Fig. 319--Douglas' Hackberry. ' ^ j , , \ • t^u i k 1 leaf-stalks, and loosely hairy. The globular fruit is about 8 mm. in diameter and black when IV. THE TREMAS GENTJS TREMA LOUREIRO HIS genus contains about 30 species of unarmed trees and. shrubs, natives of tropical regions. The one here described occurs only in southern Florida, so far as is known. T. micrantha (Swartz) Blume, is abundant on Porto Rico and other West Indian islands, and in Cen- tral America; T. Lamarckiana (Roemer and Schultes) Blume, occurs on the Ba- hamas, Cuba, and Santo Domingo to Montserrat and Guadaloupe; T. mollis. Please note that these images are extracted from scanned page images
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