STANDLEY TREES AND SHRUBS OF MEXICO. 1141 



6. OSMANTHUS Lour. Fl. Cochinch. 28. 1790. 

 All the other species are natives of Asia and the Pacific islands. 



1. Osmantlius americana (L.) Benth. & Hook.; A. Gray, Syn. Fl. 2^: 78. 1878. 



Olea americana L. Mant. PI. 24. 1767. 



Veracruz and Oaxaca. Southern United States. 



Shrub or tree, sometimes 15 meters high, with a trunk 30 cm. in diameter, 

 the bark thin, scaly, dark gray or reddish gray; leaves opposite, petiolate, 

 pers-stent, elliptic to oblanceolate, 7 to 14 cm. long, acuminate, attenuate or 

 acute at base, leathery, lustrous, entire, glabrous; flowers whitish, fragrant, 

 in short axillary racemes or panicles ; calyx with 4 deltoid lobes ; corolla 3 

 to 4 mm. long, the limb 4-lobate ; stamens 2 ; fruit a drupe, oval or obovoid, 

 1.2 to 1.8 cm. long, yellow-green to deep purple, the flesh dry and thin ; wood 

 hard, close-grained, dark brown, its specific gravity about 0.81. 



Known in the United States as " devilwood." The writer has seen two 

 Mexican specimens, one from Cumbre del Obispo (Schiede), and one from Monte 

 Pelado, Oaxaca (Galeotti 529). Although not in the best condition for com- 

 parison, they seem to agree perfectly with specimens from the United States. 



139. LOGANIACEAE. Logania Family. 



Shrubs, trees, or herbs, sometimes scandent ; leaves opposite, entire or 

 toothed, estipulate but the petioles usually united by a stipular line ; flowers 

 perfect, large or small, variously arranged, x-egular ; calyx inferior, campanu- 

 late or tubular, 4 or 5-lobate ; corolla gamopetalous, funnelform, salverform, or 

 tubular, the limb 4 or 5-lobate ; stamens as many as the corolla lobes and 

 alternate with them, inserted in the throat or tube of the corolla ; style simple, 

 the stigma capitate or lobate; fruit capsular, baccate, or drupaceous. 



Several genera of the family are represented in Mexico only by herbaceous 

 species. 

 Stigma bifid. 



Plants scandent ; capsule compressed, many-seeded ; seeds winged. 



1. GELSEMITJM. 

 Plants erect ; capsule terete, 2-seeded ; seeds each with a tuft of bristles at 

 apex. 



Stigma entire or nearly so 2. PLOCOSPEEMA. 



Leaves quintuplinerved ; fruit baccate 3. STRYCHNOS. 



Leaves pinnate-nerved; fruit capsular. 



Corolla tubular, about 3.5 cm. long; stamens exserted 4, EMORYA. 



Corolla short-salverform, less than 1 cm. long; stamens not exserted. 



5. BUDDLEIA. 



1. GELSEMIUM Juss. Gen. PI. 150. 1789. 

 One other species is known, a native of eastern Asia. 



1. Gelsemium sempervirens (L.) Ait. Hort. Kew 2: 64. 1811. 



Bignonia sempervirens L. Sp. PI. 623. 1753. 



Veracruz, Puebla, Oaxaca, and Chiapas. Guatemala ; southern United States. 



Slender scandent glabrous shrub ; leaves persistent, short -petiolate, lanceo- 

 late, 3.5 to 7.5 cm. long, attenuate, rounded or obtuse at base, entire; flowers 

 in axillary 1 to 6-flowered cymes, short-pedicellate; calyx 5-lobate; corolla 

 funnelform, 5-lobate, bright yellow, 2.5 to 3.5 cm. long; stamens 5; capsule 

 compressed, elliptic, 2-celled, septicidally dehiscent, 8 to 15 mm. long; seeds 

 winged. 



79088—24 20 



