360 TREES OF NORTH AMERICA 



or subglobose, f long, lustrous, dark blue or nearly black, the thickened cup-like tube of 

 the calyx truncate or obscurely lobed and bright red like the thickened pedicels; flesh thin 

 and dry; seed with a thin brittle red-brown coat, the inner layer lustrous on the inner 

 surface and marked by broad light-colored veins radiating from the small hilum; embryo 

 y long, light red-brown. 



A tree, 20-30 high, with a trunk rarely exceeding 18' in diameter, slender spreading 

 branches forming a narrow round-topped head, and thin terete branchlets glabrous and 

 dark reddish brown when they first appear, soon becoming lighter colored, and in their 

 second year light brown or gray tinged with red and often marked by minute pale lenticels, 

 and in their second or third year by small semiorbicular leaf-scars, displaying a single central 



Fig. 323 



fibro-vascular bundle-scar. Bark about |' thick, dark reddish brown, and roughened on 

 the otherwise smooth surface by numerous small excrescences. Wood heavy, hard, close- 

 grained, rich dark brown, with thick bright yellow sapwood of 20-30 layers of annual 

 growth. 



Distribution. Shores and islands of Florida south of Cape Canaveral on the east coast 

 and of Cape Romano on the west coast; comparatively common except on some of the 

 \vestern keys, and most abundant and of its largest size in the rich wooded hummocks 

 adjacent to Bay Biscayne; in the Bahamas. 



3. UMBELLULARIA Nutt. 



A pungent aromatic tree, with dark brown scaly bark, slender terete branchlets marked 

 in their second and third years by small semicircular or nearly triangular elevated leaf-scars 

 displaying a horizontal row of minute fibro-vascular bundle-scars, naked buds, and thick 

 fleshy brown roots. Leaves alternate, involute in the bud, lanceolate or ovate-lanceolate, 

 acute or rounded at the narrow apex, cuneate or somewhat rounded at base, entire with 

 thickened slightly revolute margins, petiolate, coated when they appear on the lower sur- 

 face with pale soft pubescence and puberulous on the upper surface, at maturity thick and 

 coriaceous, dark green and lustrous above, dull and paler below, with a slender light yellow 

 midrib, and remote, obscure, arcuate veins more or less united near the margins, and con- 

 nected by conspicuous reticulate veinlets. Flowers perfect in axillary stalked many-flowered 

 umbels, inclosed in the bud by an involucre of 5 or 6 imbricated broadly ovate or obovate 

 pointed concave yellow caducous scales, the latest umbels subsessile at the base of terminal 

 leaf-buds; pedicels slender, puberulous, without bractlets, from the axils of obovate mem- 



