. 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. La corydale de Willow 205 bractées très haiiy obovales, brown, émoussé, persistant ; il y a 2 étamines avec douceur, des filaments dans les fleurs staminées et le pistil sont ceux qui ont un ovaire ovoïde étroite qui est vaguement velues, au moins vers le haut, le style plus long que l'encoche en stigmates. Les chatons de fructification devenir 6 cm. de long ou moins, l'un peu 4 ou 5 capsules velues mm. de long, leurs tiges d'environ 1,5 mm de long. 28.

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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. Scouler's Willow 205 very haiiy bracts obovate, brown, blunt, persistent; there are 2 stamens with smooth, separate filaments in the staminate flowers, and the pistillate ones have a narrowly ovoid ovary which is loosely hairy, at least toward the top, the style longer than the notched stigmas. The fruiting catkins become 6 cm. long or less, the somewhat hairy capsules 4 or 5 mm. long, their stalks about 1.5 mm. long. 28. GLAUCOUS WILLOW —Salix discolor Muhlenberg Kaiown also as Pussy willow, Silver willow, and Swamp willow, this shrub or small tree inhabits swamps, stream-banks, and moist hillsides from Nova Scotia to Delaware, Ontario, Manitoba, and Missouri. It seldom becomes a tree, usually being a shrub not over 5 meters high, but trees up to 8 meters high have been observed with trunks up to 3 dm. in diameter. Its bark is reddish brown, thin, somewhat scaly. The young twigs are some- what hairy, purple, soon becoming smooth, the winter buds purplish and shining. The leaves are oblong to oblong-lanceolate or obovate- oblong, 12 cm. long or less, 1.4 to 4 cm. wide, more or less hairy on the under side when young, smooth on both sides when mature, dark green above, whitish or glaucous beneath, pointed at both ends, the margin toothed or nearly entire; their stalks are 6 to 24 mm. long, their stipules obhquely lanceolate or half heart-shaped, and usually fall away before midsummer. The catkins are borne on the sides of twigs of the previous season and flower in March or April, long before the leaves unfold; they are densely flowered, 4 to 5 cm. long, their bracts brown-tipped and long-silky; ^'°- ^^^- ~ Glaucous Willow, the staminate flowers have 2 stamens with separate filaments; the pistillate flowers have a stalted oblong-conic hairy ovary, a short style and undivided stigmas. The narro

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