244 NORTH AMERICAN FLORA [Volume 25 



This species is perhaps nearest E. cerasifoli Km , though the leaves are not glandular beneath, 

 but are hairy on both sides and more strongly toothed as well as more obtuse. 



2. Elaphrium subtrifoliatum Rose. 



Terebinths sublrifoliala Rose, Contr. U. S. Nat. Herb. 10: 122. 1906. 



A low shrub, glabrous throughout ; branches dark ; leaves simple or trifoliolate, cuneate 

 at base, rounded at apex, crenate, glabrous on both sides, 25 mm. long or less ; flowers 1-3 

 in the axils of the leaves ; pedicels short, 2-3 mm. long, reflexed in fruit ; drupes somewhat 

 3-angled, glabrous, 3 mm. long. 



Type locality : West of Bolafios, Jalisco. 

 Distribution : Hot valleys of Jalisco. 



3. Elaphrium jamaicense Rose. 



Bursera simplicifolia DC. Prodr. 2 : 78. 1825. Not E. simplicifolium Schlecht. 

 Terebinlhus simplicifolia Britton, Bull. Torrey Club 35 : 342. 1908. 



A tree, 12-14 meters high ; branches slender, short, bearing a cluster of leaves near 

 their tips; leaves 1-foliolate ; leaflets 4.5-6 cm. long, oblong to obovate, obtuse, entire, some- 

 what coriaceous ; inflorescence an interrupted raceme nearly as long as the leaves ; flowers 

 greenish-yellow, sweet-scented ; drupes 6-7 mm. long. 



Type locality : Jamaica. 



Distribution : Southern Jamaica, near the coast. 



4. Elaphrium Jonesii Rose. 



Bursera fonesii Rose, Contr. U. S. Nat. Herb. 3: 314. 1895. 

 Terebinlhus Jonesii Rose, Contr. U. S. Nat. Herb. 10 : 119. 1906. 



A small shrub with slender, grayish branches ; leaves simple, oval to obovate, rounded 



or slightly indented at the apex, broadly cuneate at the base, entire, 3 cm. long or less ; 



flowers solitary on short, reflexed pedicels ; drupes oval, 5 mm. in diameter. 



Type locality : Near the city of Colima, Colima. 

 Distribution : Central Mexico to Guatemala. 



5. Elaphrium Nashii (Britton) Rose. 



Terebinlhus Nashii Britton, Bull. Torrey Club 35 : 342. 1908. 



A tree, about 3 meters high; branches smooth, reddish, glabrous; leaflets 1-3, some- 

 what glaucous, linear-oblong, entire, 3-5 cm. long, obtuse or acute, narrowed at the base, 

 pale-green, indistinct] y veined, thickish ; inflorescence short, few-flowered; calyx-lobes 

 ovate, persistent; pedicels 2-5 mm. long; drupes 6-7 mm. long. 



Type locality : Gonaives to La Hotte Rochee, Haiti. 

 Distribution : Haiti. 



6. Elaphrium simplicifolium Schlecht. Lmnaea 16 : 532. 1842. 



Bursera Schlechtendalii Engler, in DC. Monog. Phan. 4 : 41. 1883. 

 Terebinlhus Schlechtendalii Rose, Contr. U. S. Nat. Herb. 10: 122. 1906. 



Branches long, brown or grayish, glabrous; leaves simple, 3-4.5 cm. long, ovate, 

 acute ; flowering branches short ; drupes subglobose, slightly 3-angled. 



Type locality : Mexico ; probably in Vera Cruz. 

 Distribution : Hot part of Vera Cruz to Chiapas. 



7. Elaphrium cerasifolium (Brand.) Rose. 



Bursera cerasifolia Brand. Proc. Calif. Acad. II. 3: 121. 1891. 

 Terebinlhus cerasifolia Rose, Contr. U. S. Nat. Herb. 10 : 119. 1906. 



A shrub or small tree 4-8 meters high, the young branches brown, glabrous; leaves 

 simple, usually crowded at the end of slender branches, ovate-lanceolate, thin, acute, 4-6 

 cm. long, the margins slightly crenate ; peduncle slender, longer than the leaves, 1-3- 

 flowered, recurved or hanging when in fruit ; drupes obovoid, 6 mm. long, glabrous. 



Type locality : San Jose del Cabo, Lower California. 

 Distribution : Southern part of Lower California. 



