738 



TREES OF NORTH AMERICA 



surface and deeply divided into broadly ovate rounded lobes rather shorter than the 

 ovate oblong rounded divisions of the liglit yellow corolla ; staniinodia lanceolate, 

 nearly entire, tipped with subulate points and much shorter than the stamens; ovary 

 oblong-ovate, glabrous, gradually contracted into an elongated style stigmatic at the 

 apex. Fruit ripening in April and May on a much thickened woody stem erect or 

 nearly at right angles to the branch, 1' long, separating from the calyx in falling, 

 with tough yellow skin, and thin dry flesh of a pleasant subacid flavor; seed, obo- 

 vate, rounded above, narrowed at the base, ^' long, ^' wide. 



A tree, in Florida C0-70 high, with a massive straight trunk 3-4 in diameter, 

 stout upright branches forming a dense irregular head, and thick terete branches or- 

 ange-colored and slightly puberulous when they first appear, becoming quite glabrous, 



f)^J9^ 



brown more or less tinged with red, and marked by the conspicuous nearly orbicular 

 leaf-scars displaying 3 large fibro-vascular bundle-scars, and conspicuously roughened 

 by the thickened persistent bases of the fruit stalks. Bark of the trunk 1'-^' thick, 

 dark gray to light brown tinged with red and broken into thick platelike scales sepa- 

 rating into thin layers. Wood heavy, hard, strong, bright orange-colored, with thick 

 yellow sapwood of 40-50 layers of annual growth; in Florida used in boatbuilding. 



Distribution. Cape Canaveral and Cape Romano to the southern keys, Florida; 

 on the Bahamas and many of the Antilles. 



2. DIPHOLIS, A. DC. 



Trees or shrubs, with naked buds, and persistent leaves, the slender veins arcuate 

 and united near the margins. Flowers minute, on clavate ebracteolate pedicels 

 from the axils of minute deciduous bracts, in the axils of existing leaves or from the 

 leafless nodes of previous years; calyx ovate, deeply 5-lobed, the lobes nearly equal, 

 ovate, rounded at the apex; corolla campanulate, white, 5-lobed, the spreading 

 lobes furnished on each side at the base with linear or subulate appendages; stamens 

 exserted; filaments filiform; anthers oblong-sagittate, extrorse; staminodia 5, pet- 

 aloid, ovate, acute, fimbriately cut on the margins, oblique, keeled on t^he back, 

 inserted in the same rank and alternate with the stamens; ovary oblong or narrowly 

 ovate, gradually contracted into a slender style shorter than the corolla and stigmatic 

 at the apiculate apex. Fruit ovate-oblong, with thin dry flesh. Seed ovate ; seed-coat 



