Part 2, 1910] MALPIGHIACEAE 167 



Bracts large, over 3 mm. long, tomentose beneath, glabrous or nearly so 

 above. 

 Leaf -blades markedly petioled ; pedicels rather long and slender. 

 Young leaves closely pubescent with short appressed ferruginous 

 or copper-colored hairs. 

 Anthers linear or narrowly oblong, pubescent ; panicles 

 elongate. 

 Leaf-blades thick, broad. 7. B. crassifolia. 



Leaf -blades thin, narrow. 8. B. tenuifolia. 



Anthers broadly oblong or ovoid, glabrous. 



Anther-sacs about equaling the top of the connective. 9. B. Wrighliana. 



Anther-sacs much exceeding the top of the connective. 10. B. Pinetoritm 



Young leaves canescent with loose whitish or pale hairs. 



Mature leaf -blades dull above; flowers mostly more than one in 

 the axil of a bract. 

 Leaf-blades becoming glabrous beneath, obtuse or abruptly 



blunt-tipped. 11. B. Karwinskiana. 



Leaf -blades permanently pubescent beneath, decidedly acumi- 

 nate and acute. 12. B. Cumingiana. 

 Mature leaf-blades shining above ; flowers solitary in the axils 

 of the bracts. 

 Leaf -blades of a rhombic type, rather abruptly blunt-tipped. 13. B. rliombifolia. 

 Leaf -blades of an obovate or oval type, broadly rounded or 

 emarginate at the apex. 14. B. oaxacana. 

 Leaf-blades sessile or nearly so ; pedicels very short. 15. B . verbascifoha . 

 Connective much exceeding the anther-sacs as an acute or obtuse appendage. 



Anther-sacs rounded at the apex ; connective acute. 16. B. coccolobae folia. 



Anther-sacs apiculate at the apex ; connective blunt. 



Leaf-blades broadly obovate, rounded or emarginate at the apex. 17. B. trinitensis. 



Leaf-blades oblong or oblanceolate, obtuse or slightly acuminate at 

 the apex. 18. B. martinicensis. 



1. Byrsonima Berteroana A. Juss. Ann. Sci. 

 Nat. II. 13 : 333. 1840. 

 Leaf-blades obovate to oval, 3-7 cm. long, rounded or emarginate at the apex, pubes- 

 cent with scattered hairs on the upper surface when young, glabrous beneath except the 

 midrib, abruptly narrowed at the base, rather long-petioled ; panicle-rachis and pedicels 

 copiously red-tomentulose at least during anthesis, the pedicels mostly less than 7 mm. 

 long ; sepals ovate, about 4 mm. long, the glands one half the length of the sepal-body or 

 less; larger petals 5-6 mm. long ; drupes not seen. 



Type locality : West Indies. 

 Distribution : Jamaica. 



2. Byrsonima glaberrima Niedzu. Gen. Byrs. 2 : 43. 1901. 

 Leaf-blades broadly oval, varying to ovate or obovate, 3-7 cm. long, rounded at the 

 apex, glabrous at maturity, bright-green above, yellowish-green beneath, abruptly narrowed at 

 the base, short-petioled ; panicle-rachis and pedicels sparingly red-tomentulose, the pedicels 

 mostly less than 6 mm. long ; sepals ovate, about 4 mm. long, the glands less than one half 

 the length of the sepal-body ; larger petals 6-7 mm. long ; drupes globose-ovoid, 7-9 mm. 

 in diameter. 



Type locality : Jamaica. 

 Distribution : Jamaica. 



3. Byrsonima coriacea (Sw.) DC. Prodr. 1 : 580. 1824. 



Malpighia coriacea Sw. Prodr. 74. 1788. 



Leaf-blades oblong or elliptic, or sometimes broadest slightly above the middle, 3-7 

 cm. long, acute or abruptly blunt-tipped, glabrous, inconspicuously veined, scarcely paler 

 beneath than above, abruptly narrowed or cuneate at the base, short-petioled ; panicle- 

 rachis and pedicels minutely pubescent, the pedicels becoming 10-13 mm. long; sepals 

 broadly ovate to orbicular-ovate, becoming 4-5 mm. long, the glands about one half the 

 length of the sepal-body ; petals not seen ; drupes globose-ovoid, about 1 cm. in diameter. 



Type locality : Jamaica. 



Distribution : Jamaica. 



Illustration: Sloane, Hist. Jam. pi. 163, f. 1. 



