. 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. Bitter Bush 585 The alternate leaves are i to II. BITTER BUSH GENUS PICRAMNIA. SWARTZ Species Picramnia pentandra Swartz WEST INDIAN shrub or small tree which enters our area in southern peninsular Florida and some of the Keys, where it occurs in sandy soils and reaches a maximum height of 6 meters, with a trunk diam- eter of dm. It is abundant on the Bahama islands and in Porto Rico and other West Indian islands. The
. 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. Bitter Bush 585 The alternate leaves are i to II. BITTER BUSH GENUS PICRAMNIA. SWARTZ Species Picramnia pentandra Swartz WEST INDIAN shrub or small tree which enters our area in southern peninsular Florida and some of the Keys, where it occurs in sandy soils and reaches a maximum height of 6 meters, with a trunk diam- eter of dm. It is abundant on the Bahama islands and in Porto Rico and other West Indian islands. The twigs are slender, shghtly hairy and gray. 3 dm. long, unevenly pinnate, consisting of 5 to 9 leaflets and a round leaf-stalk 4 to 6 cm. long; the leaflets are elliptic or oblong-elliptic, rarely ovate, 5 to 10 cm. long, taper-pointed, tapering or rounded at the base, entire on the thickened margin, thin and firm, dark green and shining above, paler and smooth beneath, the venation yellowish and conspicuous on either side. The flowers are dioecious, greenish and small, in rather loose, few-flowered, shghtly hairy panicles oppo- site the leaves; the calyx is usually s-lobed and the lobes imbricated, those of the pistillate flowers narrowly triangular-ovate and sharp-pointed, the disk flat and lobed; the corolla of the staminate flowers is 3 to 5 mm. wide, the petals narrow; stamens usually 5, inserted opposite the petals and beneath the disk; in the pistillate flowers they are reduced to linear scales; the ovary is sessile, 2-celled; styles partially united; stigmas 2 or 3, recurved; ovules 2, pendulous. The fruit is an oblong berry, i to cm. long, reddish, becoming dark blue or black and shining. The genus is tropical American, comprising about 30 species of trees or shrubs with a very bitter principle in their bark, wood and twigs, to which the Greek generic name has reference. The type species is Picramnia Antidesma Swartz, of the West Indies and Central Fig. 5
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