246 NORTH AMERICAN FLORA [VOLUME 25 



14. Elaphrium occidentale Rose, sp. nov. 

 A large tree ; young branches grayish, softly pubescent; leaves pinnate ; leaflets 5-7, 

 broadly ovate to shortly oblong, abruptly or shortly acuminate, 6-8 cm. long, softly pubes- 

 cent on both surfaces, sometimes quite sessile ; inflorescence a narrow elongate panicle, in 

 fruit sometimes reduced to a simple raceme, softly pubescent ; calyx-lobes pubescent; ovary 

 and fruit pubescent ; drupes globose, 6 mm. in diameter; stone flattened dorsally, faintly 

 3-angled. 



Type collected between Rosario and Concepcion, Sinaloa, July 27, 1897,/. TV. Rose 3259d(V. S. 

 Nat. Herb. no. 302232). 



15. Elaphrium grandifolium Schlecht. L,innaea 17 : 249. 1845. 



Bursera grandifoha Engler, in DC. Monog. Phan. 4: 45. 1883. 

 Terebinthus gr'andifolia Rose, Contr. D. S. Nat. Herb. 10 : 119. 1906. 



Young branches pubescent ; leaves large for the genus ; leaflets 5, ovate to obovate, 

 shortly acuminate, 5-7 cm. long, entire, glabrous above, pubescent beneath; drupes 12 mm. 

 'ong, obovoid, somewhat 3-angled, a little pilose. 



Type locality : Mexico. 



Distribution : Probably eastern Mexico. 



16. Elaphrium Simaruba (L.) Rose. 



Pistacia Simaruba L. Sp. PI. 1026. 1753. 



Terebinthus Brownii Jacq. Euum, PI. Carib. 18. 1760. 



Bursera gummifera L. Sp. PI. ed. 2. 471. 1762. 



Bursera Simaruba Sargent, Garden & Forest 3 : 260. 1890. 



Terebinthus Simaruba W. F. Wight ; Rose, Contr. U. S. Nat. Herb. 10 : 122. 1906. 



A large tree 20 meters or less high, with a trunk sometimes 1 meter in diameter, the 

 branches even when quite young generally glabrous, but sometimes pubescent ; leaves pin- 

 nate, 1-2 dm. long ; leaflets 3-7, oval to elliptic, acute or even acuminate, in age thickish ; 

 racemes pubescent or glabrous ; drupes 3-angled, oblong, glabrous. 



Type locality : Jamaica. 



Distribution : Southern Florida, West Indies, and probably eastern and central Mexico. 



Illustrations: Lam. Tab. Eneyc. pi. 256 ; Descourt. Fl. Ant. pi. 97 ; Nutt. N. Am. Svlva 

 pi. 79; Sargent, Silva N. Am. pi. 41, 42 ; Sargent, Man. /. 4S6 ; Britton, N. Am. Trees /. 345. 



A very variable species as to pubescence. 



17. Elaphrium Hollickii (Britton) Rose. 



Terebinthus Hollickii Britton, Bull. Torrey Club 35 : 341. 1908. 



A small tree, 6 meters high, the trunk 2.5 dm. in diameter with a close reddish bark 

 not peeling off in thin layers; young branches pubescent; leaflets 3-7, thickish, glabrous, 

 entire, ovate, abruptly rounded at base, shortly acuminate ; inflorescence a simple or 

 slightly compound raceme, 4-7 cm. long; fruiting pedicels 4-5 mm. long. 



Type locality : Port Henderson, Jamaica. 



Distribution : Jamaica. 



18. Elaphrium ovalifolium Schlecht. L,innaea 17 : 248. 1843. 



Bursera ovalifolia Engler, in DC. Monog. Phan. 4 : 40. 1883. 

 Terebinthus ovalifolia Rose, Contr. U. S. Nat. Herb. 10 : 121. 1906. 



Branches glabrous ; leaves pinnate ; leaflets 3-5, oblong to lanceolate, acuminate, entire, 

 the lateral nerves prominent below, 4-5 cm. long, 2-3 cm. broad ; flowers and fruit unknown. 

 Type locality : Mexico. 

 Distribution: Known only from the type specimen. 



19. Elaphrium longipes Rose. 



Terebinthus longipes Rose, Contr. U. S. Nat. Herb. 10 : 120. 1906. 



A small tree, 3-4 meters high, with a smooth trunk and with a broad flat top, glabrous 

 throughout ; leaves pinnate, 10-25 cm. long ; common petiole terete, not at all winged 

 between the leaflets; leaflets 3-6 pairs, on slender petiolules (the longer 10 mm. long), 

 long-acuminate, the terminal ones cuneate at base, the others usually rounded, sometimes 

 narrowed, always more or less oblique at base, green above, paler and somewhat reticulate 



