912 SAPOTACEAE 



1.5-2 mm. in diameter, often erose-toothed ; appendages lanceolate or ovate-lanceolate, 

 crisped or erose : staminodia ovate, about 2 mm. long, obtuse, serrulate : berries oval or 

 globose-oval, 1-1.5 cm. long. 



In sandy soil or woods, Louisiana. 



7. Bumelia monticola Buckl. A straggling thorn-armed shrub 1-3 m. tall, the 

 petioles, nerves of the lower surface of the leaf-blades and inflorescence sparingly pubescent. 

 Stem clothed with a reddish brown bark : leaves stiff ; blades spatulate or oblong-oblanceo- 

 late, rounded and often slightly apiculate at the apex, slightly revolute, usually acuminate 

 or cuneately narrowed at the base, the nerves prominent and reticulate on the pale under 

 surface, not prominent on the dark green upper surface ; petioles slender, 3-8 mm. long : 

 fascicles often many-flowered : pedicels slender, much thickened toward the apex : sepals 

 suborbicular, about 2 mm. long, the inner slightly broader than the outer : corolla-lobes 

 suborbicular, a little broader than long, about 1.5mm. in diameter ; appendages lanceolate, 

 rather obtuse : staminodia ovate-lanceolate, obtuse or acutish, less than 2 mm. long : ovary 

 hairy : berries elliptic, 1-1.3 mm. long, often tipped by the persistent style : seeds siibglo- 

 bose, slightly longer than thick. 



In dry soil, western and southern Texas. 



8. Bumelia Texana Buckl. A rigid somewhat thorny shrub or small tree, several 

 m. tall, glabrous or with a slight inconspicuous pubescence on the petioles, and mid- 

 rib of the leaf-blades beneath. Leaves firm ; blades leathery, oval or oblong, 2-3 cm. long, 

 rounded, truncate or retuse at the apex, hardly revolute, prominently nerved and pale 

 green on both surfaces, sometimes cuneately narrowed at the base ; petioles slender, 5-10 

 mm. long : fascicles few-flowered : pedicels stoutish, 1-3 mm. long : berries oblong or 

 elliptic, about 1 cm. long. 



On plains and mountains, southwestern Texas. 



9. Bumelia lucida Small. A glabrous shrub, or a small tree 2-7 m. tall, with rigid 

 thorny branches. Leaves numerous ; blades leathery, elliptic varying to elliptic-ovate 

 or elliptic-oblanceolate, 2-5 cm. long, acute or obtuse at both ends, deep-green, shining and 

 hardly reticulated above, paler, dull and prominently reticulated beneath ; petioles slender, 

 2-5 mm. long : fascicles rather many-flowered : pedicels glabrous, slender, 3-7 mm. long, 

 very slightly if at all enlarged at the apex : sepals suborbicular, about 2 mm. in diameter, 

 the outer somewhat smaller than the inner : corolla-lobes suborbicular ; appendages lan- 

 ceolate, obtuse : staminodia ovate, 2 mm. long, sometimes inequilateral, obtuse : berries 

 mostly oval, about 7-8 mm. long. 



In woods, Louisiana and eastern Texas. 



10. Bumelia lycioides (L. ) Gaertn. A glabrous usually armed shrub, or a small tree 

 reaching a height of 8m., the stems clothed with a gray bark. Leaves numerous ; blades 

 thickish but barely leathery, oblong, elliptic or rarely oblanceolate, 4-12 cm. long, acute 

 or acuminate or rarely rounded at the apex, pale green and prominently reticulate on both 

 surfaces, narrowed into petioles which are 5-12 mm. long : fascicles densely flowered : 

 pedicels slender, 7-10 mm. long, hardly enlarged at the apex : sepals oval, or orbicular- 

 ovate, 2 mm. long, the inner somewhat broader than the outer : corolla-lobes longer than 

 broad ; appendages lanceolate or ovate-lanceolate : staminodia ovate, 2-2.5 mm. long, boat- 

 like, obtuse, often keeled : ovary hairy : berries oval, fully 1 cm. long. 



In low or damp soil, Virginia to Illinois, south to Florida and Texas. BUCKTHORN. IRONWOOD. 

 MOCK ORANGE. SHITTIMWOOD. 



11. Bumelia rigida (A. Gray) Small. A low tree with rigid spreading branches. 

 Leaves numerous : blades cuneate or oblong-cuneate, 1.5-3 cm. long, rounded or retuse at 

 the apex, dark green and glabrous above, woolly beneath ; petioles 1-3 mm. long : fascicles 

 rather few-flowered : pedicels 4-8 mm. long, slightly thickened above : sepals suborbicular, 

 2 mm. long, the inner somewhat larger than the outer : corolla-lobes suborbicular, 2 mm. 

 in diameter, truncate at the base, erose ; appendages lanceolate or ovate-lanceolate, acute : 

 staminodia ovate-lanceolate, erose. obtuse : ovary hairy : berries oblong-oval or oval, 10-12 

 mm. long, often tipped with the persistent style. 



Along streams, Texas to Arizona and northern Mexico. 



12. Bumelia lanuginosa (Michx. ) Pers. An armed or thornless shrub or tree, 3-20 

 m. tall, its twigs, the lower surface of the leaves and the inflorescence tomentose with pale 

 or reddish hairs, never lustrous, the stems rarely becoming nearly 1 m. thick. Leaves vari- 

 ous ; blades oblong-oblanceolate, oblong-obovate or elliptic, acutish, rounded or retuse at 

 the apex, glabrous above, gradually or cuneately narrowed at the base ; petioles 2-15 mm. 

 long : fascicles few- or many-flowered : pedicels 5-8 mm. long, considerably enlarged 

 towards the base of the calyx : sepals suborbicular or orbicular-ovate, about 3 mm. long, 



