ANACARDTACEAE. 243 



1. TRICERA Sw.; Schreb. Gen. 630. 1791. 



Evergreen shrubs or small trees, with opposite entire coriaceous short- 

 petioled leaves, and small monoecious flowers in small, axillary or terminal, 

 sessile or short-stalked clusters, the bracts small, herbaceous or coriaceous. 

 Terminal flowers of the clusters usually pistillate, the lower staminate. Pistil- 

 late flowers usually with 6 imbricated sepals, the ovary 3-celled, the 3 styles 

 separate, or connate below; ovules 2 in each ovary-cavity, pendulous. Stami- 

 nate flowers with 4 sepals, 4 stamens with oblong anthers and a rudimentary 

 ovary. Capsule 2-3-horned. [Greek, three-horned.] About 23 species, natives 

 of the West Indies. Type species: Crantsia laevigata Sw. 



1. Tricera bahamensis (Baker) Britton, Bull. N. Y. Bot. Gard. 4: 139. 1906. 

 Buxus bahamensis Baker, in Hook. Ic. PI. 19: pi. 1806. 1889. 



A much-branched shrub, 1-2 m. high, rarely a small tree about 3 m. high, 

 glabrous throughout, the angulate twigs rather densely leafy. Leaves oblong 

 to elliptic, rigid, 2-4 cm. long, 2-3 times as long as wide, sharply acute at the 

 apex, narrowed at the base, the midvein rather prominent, the lateral venation 

 very obscure, the petioles 1-3 mm. long; inflorescence axillary, nearly sessile, 

 much shorter than the leaves; bracts ovate, acute, 1-2 mm. long; pistillate 

 flowers 1 or few; staminate flowers usually several, pedicelled, about 2 mm. 

 long; stamens longer than the sepals; capsule 6-7 mm. long; style distinct. 



Scrub-lands, pine-lands and coppices, Andros, New Providence, Exuma Chain, 

 Cat Island to Caicos, Grand Turk and Inagua : Cuban Cays and Jamaica. BAHAMA 

 TRICERA. 



Family 2. ANACARDIACEAE Lindl. 



SUMAC FAMILY. 



Trees or shrubs, with acrid resinous or milky sap, alternate or rarely 

 opposite leaves, and polygamo-dioecious or perfect, mainly regular flowers. 

 Calyx 3-7-cleft. Petals of the same number, imbricated in the bud, or 

 rarely none. Disk generally annular. Stamens as many or twice as many 

 as the petals, rarely fewer, or more, inserted at the base of the disk; fila- 

 ments mostly separate; anthers commonly versatile. Ovary in the stami- 

 nate flowers 1-celled. Ovary in the pistillate flowers 1- or sometimes 4-5- 

 celled ; styles 1-3 ; ovules 1 in each cavity. Fruit generally a small drupe. 

 Seed-coat bony or crustaceous; endosperm little or none; cotyledons fleshy. 

 About 60 genera and 500 species, most abundant in warm or tropical 

 regions, a few extending into the temperate zones. 



Leaves pinnate or trifoliate ; drupes small. 



Stone of the subglobose drupe hard, ribbed ; our species a vine. 1. Toxicodendron. 



Stone of the oblong drupe parchment-like ; tree. 2. Metopium. 



Leaves simple ; drupes large. 8. Mangifera. 



1. TOXICODENDRON [Tourn.] Mill. Gard. Diet. Abr. Ed. 4. 1754. 



Shrubs, small trees, or vines climbing by aerial rootlets, with 3-foliolate 

 or pinnate leaves poisonous to the touch, and axillary panicles of small, 

 greenish or white polygamous flowers. Calyx 5-cleft; petals and stamens 5; 

 ovary 1-ovuled; style terminal. Drupes small, glabrous, or 'Sparingly pubes- 

 cent when young, the stone striate. [Greek, poison-tree.] About 20 species, 

 natives of North America and Asia. Type species: ETius Toxicodendron L. 



