. 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. Large-Fruited Thatch Palm ^33 I. SMALL-FRUITED THATCH PALM—Tlirinax microcarpa Sargent Thrinax keyensis Sargent Thrinax ponceana O. F. Cook. Thrinax bahamensis O. F. Cook This palm occurs in southern Florida, throughout the Bahamas, and in Porto Rico, growing on limestone rocks, preferably where there is no loose soil at all, but sometimes in sand, and attains a maximum height of lo or 12 meters, with a tnmk up to dm.
. 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. Large-Fruited Thatch Palm ^33 I. SMALL-FRUITED THATCH PALM—Tlirinax microcarpa Sargent Thrinax keyensis Sargent Thrinax ponceana O. F. Cook. Thrinax bahamensis O. F. Cook This palm occurs in southern Florida, throughout the Bahamas, and in Porto Rico, growing on limestone rocks, preferably where there is no loose soil at all, but sometimes in sand, and attains a maximum height of lo or 12 meters, with a tnmk up to dm. in diameter; it is usually much smaller, how- ever, and is often seen fruiting when only 2 or 3 meters high. The leaf-blades are meters in diameter, or less, sometimes a trifle longer than wide, and they are deeply cleft into many narrow segments; they are hght green and somewhat shining on the upper surface, and bluish green to silvery-white on the under side, and when young, white- woolly; the leaf-stalks are usually as long as the blades, or longer, slen- der, I to cm. wide; the ligule is blunt-pointed. The panicles of very small, white flowers are borne among the leaves and are usually as long as the leaves, or longer; the flowers are borne on very short, disk-like pedi- cles on the ultimate slender, smooth branchlets of the panicel, the perianth-seg- ments 2 to 3 mm. long, the filaments nearly triangular. The white or greenish white drupes vary from 4 to 6 mm. in diameter. The leaves are used in the West Indies for thatching and for hat-making. The tree is planted in southern Florida for ornament. Its wood is soft and spongy, the hard rind 12 mm. thick or less, the specific gravity about ; it is used for piles and Fig. 99. — Small-fruited Thatch Pahn. 2. LARGE-FRUITED THATCH PALM —Thrinax floridajia Sargent This palm inhabits southern Florida, growing on limestone rocks and in sand, and also occurs on Cat Cay, Bahamas, just across the Gulf Strea
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