Part 3, 1911] BURSERACEAE 245 



8. Elaphrium glaucum (Griseb.) Rose. 



Bursera trlauca Griseb. Cat. PI. Cub. 66. 1866. 



Terebinihus giauca Britton, Bull. Torrey Club 35 : 342. 1908. 



A tree 10 meters high, with a trunk 3 dm. in diameter, with peeling bark ; branches 

 reddish, slender ; leaflets 1-3, glaucous, oblong to oblong-lanceolate, 2.5-5 cm. long, rounded 

 at base, acute, entire, thickish ; inflorescence short, few-flowered; calyx-lobes triangular, 

 acute ; petals lanceolate, 4 times as long as the calyx ; drupes smooth, 6-7 mm. long. 



Type locality : Eastern Cuba. 

 Distribution : Cuba. 



9. Elaphrium Schaffneri (S. Wats.) Rose. 



Bursera Schaffneri S. Wats. Proc. Am. Acad. 22 : 469. 1887. 

 Terebinihus Schaffneri Rose, Contr. U. S. Nat. Herb. 10 : 122. 1906. 



Probably a tree, with stout rigid branches ; leaves pinnate, glabrous and somewhat 



glaucous ; rachis of the leaf not winged ; leaflets 3-7, obovate, obtuse, cuneate at base, entire, 



6-10 mm. long; drupes triangular, obovate, acutish, 6-8 mm. long, solitary or clustered at 



the ends of the branches, on reflexed peduncles 2-4 mm. long. 



Type locality : In the Morales mountains, San Luis Potosi. 

 Distribution : San Luis Potosi. 



10. Elaphrium obovatum (Turcz.) Rose. 



Bursera obovala Turcz. Bull. Soc. Nat. Mosc. 361 : 614. 1863. 



Probably a shrub, glabrous ; leaflets 5, shortly petiolulate, shining, obtuse or retuse, the 

 lower ones smaller ; inflorescence compact ; drupes 3-celled, but one or two cells abortive. 



Type locality : Orizaba, Vera Cruz. 

 Distribution : Eastern central Mexico. 



11. Elaphrium angustatum (Griseb.) Rose. 



Bursera an^usiala Griseb. Cat. PI. Cub. 65. 1866. 



Terebinihus angustata Britton, Bull. Torrey Club 35 : 342. 1908. 



A small tree, 4 meters high, with reddish bark ; branches reddish, glabrous ; leaflets 5-11, 



lanceolate, narrowed at base, acute, 3-5 cm. long, glabrous, entire, with more prominent 



nerves beneath ; inflorescence 1 dm. long; pedicels 2-3 mm. long; drupes 6 mm. long. 



Type locality : Eastern Cuba. 

 Distribution : Cuba. 



12. Elaphrium inaguense (Britton) Rose. 



Bursera inaguensis Britton, Bull. N. Y. Bot. Gard. 3 : 443. 1905. 

 Terebinihus inaguensis Britton, Bull. Torrey Club 35 : 342. 1908. 



A shrub or small tree, 3 meters or more high ; branches smooth, gray, glabrous ; leaflets 

 3-7, oblong to oblanceolate, entire, 6 cm. long, acute or obtuse, narrow at base, light-green, 

 indistinctly veined, thin, somewhat shining above ; inflorescence often as long as the leaves ; 

 peduncles slender, 1-6 cm. long ; pedicels 2-3 mm. long ; calyx-lobes acute ; petals oblong- 

 lanceolate, acute; drupes 6-8 mm. long. 



Type locality : Moujean Harbor, Little Inagna, Bahama Islands. 

 Distribution : Bahama Islands and perhaps Cuba. 



13. Elaphrium cinereum (Engler) Rose. 



Bursera cinerea Engler, in DC. Monog. Phan. 4 : 43. 1883. 

 Terebinihus cinerea Rose, Contr. U. S. Nat. Herb. 10 : 119. 1906. 



Branches when young densely whitish-tomentose, in age reddish, glabrous ; leaves 

 pinnate ; leaflets 3-5, membranaceous, densely pubescent beneath, oblong-ovate, long-acu- 

 minate, 4-5 cm. long; calyx-lobes ovate, acute, glabrous; petals oblong-ovate, 3 mm. long, 

 three times as long as the calyx-lobes. 



Type locality : Valley of Cordoba, Vera Cruz. 

 Distribution : Vera Cruz and Morelos. 



