EHRETIACEAE 1003 



1-2.5 cm. long: corymbs 1-1.5 dm. broad: calyx-tube slightly dilated upward, about 1 

 cm. long ; lobes triangular, acute : corolla white, yellow in the center ; tube funnelform, 

 much surpassing the calyx ; lobes suborbicular, crisped, sliorter than the tube : fruit ovoid, 

 2.5-3 cm. long, more or less enclosed in the thin accrescent calyx. 

 Chiefly in limestone soil, Texas to New Mexico and adjacent Mexico. 



3. Cordia globo3a (L. ) H.B.K. A branching shrub, 1-3 m. tall, with hirsute and 

 somewhat lioary pubescence. Leaf-blades firm, ovate to oblong-ovate, 1-5 cm. long, ser- 

 rate, rugose, scabrous, cuneate at the base : petioles much shorter than the blades : heads 

 subglobose, about 1 cm. in diameter : peduncles 1-3 cm. long : calyx ovoid ; lobes subulate, 

 shorter than the tube : corolla white, 4-6 mm. long ; tube funnelform, pubescent in the 

 throat ; lobes ovate, shorter than the tube : fruit 2-3 mm. long. 



In sand, Florida Keys. Also in the West Indies and tropical America to Panama. 



4. Cordia podoc6phala Torr. A shrubby plant 3-7 dm. tall with strigose-hirsute 

 foliage. Leaf-blades firm, linear-lanceolate to ovate-lanceolate, 1-2.5 cm. long, coarsely 

 serrate, scabrous, short-petioled : peduncles 5-12 cm. long : heads dense, 5-8 mm. in 

 diameter : calyx-tube campanulate, strigose ; lobes triangular-subulate to ovate, shorter 

 than the tube : corolla white, or purple within ; tube narrowly funnelform, barely surpass- 

 ing the calyx ; lobes ovate, notched, shorter than the tube : fruit 3-4 mm. long. 



In dry soil, along the lower Rio Grande, Texas and adjacent Mexico. 



2. BOURRERIA P. Br. 



Shrubs or small trees. Leaves alternate or whorled : stipules wanting. Flowers in 

 terminal corymbose cymes, numerous or rarely solitary. Calyx-pedicelled : tube campan- 

 ulate, persistent and sometimes slightly accrescent : lobes 2-5. Corolla campanulate or in- 

 fundibuliform : tube variable in length : lobes 5. Stamens as many as the corolla-lobes, 

 adnate to the corolla-tube. Filaments filiform. Ovary 2-celled (incompletely 4-celled), 

 sessile in a thin annular disk : styles united to near the apex, sometimes enlarged upward : 

 stigmas somewhat flattened. Drupe subglobose, tipped with the base of the style, the 

 exocarp thin-fleshy, the 4 bony nutlets each furnished with a ridged appendage on the 

 back. Seeds curved, terete, with a brown membranous testa. Endosperm fleshy. 



Leaf-blades very scabrous above ; petioles less than 5 mm. long. 1. B. Radula. 



Leaf-blades smooth above ; petioles over 10 mm. long. 2. B. Havanensis. 



1. Bourreria Rddula (Poir. ) G. Don. Shrub or small tree sometimes 13 m. tall, 

 with finely pubescent twigs and very scabro-pubescent upper leaf-surfaces. Leaf-blades 

 firm, obovate or oblong-obovate to cuneate, 2-4 cm. long, rounded or notched at the apei, 

 revolute, short-petioled: corymbs few-flowered, 2-6 cm. broad: pedicels sparingly pubes- 

 cent or glabrous in age : calyx campanulate, 6-7 mm. long ; lobes oblong to ovate- or 

 lanceolate-oblong, shorter than the tube : corolla white, 1 cm. long ; tube funnelform, sur- 

 passing the calyx ; limb 1-1.2 cm. broad ; lobes orbicular-reniform : fruit subglobose, 9-14 

 mm. in diameter. 



In sand. Florida Keys. Also in the West Indies. 



2. Bourreria Havan6nsis (L. ) Miers. A shrub or tree sometimes 12 m. tall, with 

 glabrous foliage. Leaf-blades firm, obovate to oblong- or oval-obovate, 4—12 cm. long, 

 rounded or notched at the apex, lustrous above, narrowly or broadly cuneate ; petioles 

 11-15 mm. long : corymbs 2-10 cm. broad : pedicels 2-10 mm. long : calyx campanulate, 

 5-6 mm. long ; lobes triangular-ovate to rounded, shorter tlian the tube : corolla creamy 

 white, about 2 cm. long ; tube slightly longer than the calyx ; limb barely 2 mm. broad, 

 lobes suborbicular or orbicular-obovate : fruits subglobose, 10-13 mm. in diameter, orange. 



In sand, Florida Keys. Also in the Bahamas and the West Indies. 



3. EHRETIA P. Br. 



Shrubs or trees. Leaves alternate : stipules wanting. Flowers small, in corymbose 

 or paniculate cymes. Calyx campanulate, persistent : lobes 5. Corolla white : lobes 5, 

 spreading. Stamens 5, adnate to the corolla-tube : filaments filiform-subulate : anther-sacs 

 spreading below. Ovary 1 -celled or incompletely 4-celled by the development of 2 parietal 

 placentae, in an annular disk : styles 2, filiform, partially united : stigmas depressed-capi- 

 tate or clavate. Drupe berry-like, seated in the persistent calyx, with a dry or juicy exo- 

 carp and bony 2-seeded nutlets. Seeds curved, terete, with a brown membranous testa. 

 Endosperm fleshy. 



