. Les arbres de l'Amérique du Nord : être des descriptions et des illustrations de l'arbres croissant indépendamment de la culture en Amérique du Nord, au nord du Mexique et les Antilles . Les arbres. 4. Fraxmus velntinaTorrey-velouté cet arbre est enregistrée à partir de l'ouest du Texas à l'Arizona, Californie, sud-est et du nord du Mexique, préférant des chanoines. L'écorce est vert rougeâtre et rugueux. Les jeunes pousses sont ronds et lisses ou veloutée, les plus âgés gris et lisse. Les feuilles sont également velouté ou au moins quelque peu pubescentes sur la face inférieure, avec 3 à 9 lancéolées à ovales, elliptiques ou brochures, qui sont bl

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. 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. 4. VELVETY ASH—Fraxmus velntinaTorrey This tree is recorded from western Texas to Arizona, southeastern California, and northern Mexico, preferring canons. The bark is reddish green and rough. The young twigs are round and either velvety or smooth, the older ones gray and smooth. The leaves are also velvety or at least somewhat hairy on the lower surface, with 3 to 9 lanceolate to ovate, or elliptic leaflets, which are blunt or sharp-pointed, often toothed, leathery in texture and yellowish green, 2.5 to 8 cm. long, rather strongly netted-veined, the lateral ones sessile or nearly so on the leaf-axis. The staminate and pistillate flowers are borne on different trees, the clusters appearing at the leaf scars of the preceding year. The calyx of the pistillate flowers is larger than that of the staminate, and its 4 lobes are slightly toothed. The samara is spatulate to linear- spatulate, 2.5 to 3.5 cm. long, the blunt or slightly notched wing as long as the terete seed-bearing part or longer, and decurrent upon it only for about one fourth its length. Dr. Torrey changed the specific name of this tree subsequently to Fraxinus pistaciafolia, because he thought velutina uncharacteris- tic; the species has long been confounded with Tourney's ash. 5. PRAIRIE ASH Fraxinus campestris Britton, new species This tree, which ranges from Montana to Manitoba, Wyoming and Kansas, pre- ferably inhabiting valleys, has been confused with the eastern Red ash {Fraxinus penn- sylvanica Marshall), from which it differs in its shorter-stalked or sessile lateral leaflets which are relatively broader, and in its shorter fruit. Its bark is thick, brown and rough. The young twigs are round and either smooth or velvety. The leaves have 7 leaf- lets for the most part, which are ovate to Fig. 725. — Velvety Ash.. Fig. 726.

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