1236 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



tinous-pilose beneath ; cymes few-flowered, axillary, long-pedunculate, densely 

 pilose; corolla 1 cm. long; fruit globose, 1 to 2 cm. in diameter, bluish black. 

 " Torete," "negro coyote," "tescalama" (Sinaloa) ; "ahuilote" (Jalisco, Co- 

 lima) ; " agiiilote " (Jalisco); " atuto " (Michoacan) ; "coyotomate" (Guer- 

 rero, Colima) ; " uvalama " (Baja California, Durango, Sinaloa); " uvalano " 

 (Jalisco); " obalamo " (Sinaloa); " ualama," " valama " (Durango); " agua- 

 malario " (Tepic). 



The fruit is edible and is often sold in the markets. A decoction of the 

 fruit and leaves is emploj-ed as a remedy for diarrhoea. 



2. Vitex pyramidata Robinson, Proc. Amer. Acad. 29: 321. 1894. 

 Sonora to Durango and Jalisco ; type from Tequila, Jalisco. 



Shrub or sometimes a large tree, usually 15 meters high or less ; leaves long- 

 petiolate, the leaflets elliptic to lance-oblong, IS cm. long or less, rounded 

 to acuminate at apex, obtuse or rounded at base, glabrate above, beneath 

 densely and minutely grayish-tomentulose ; flowers in panicled cymes, the 

 panicles axillary, pyramidal, many-flowered, about as long as the leaves ; fruit 

 about 1 cm. in diameter. "Tescalama," " negrito coyote" (Sinaloa), 



The fruit is edible. 



3. Vitex gaumeri Greenni. Field IMus. Bot. 2: 260. 1907. 

 Yucat&n ; type from Izamal. 



Tree, 10 to 15 meters high ; leaflets 5 or 7, ovate to elliptic-oblong, 5 to 11 

 cm. long, usually short-acuminate, obtuse to subcordate at base, pale and 

 tomentulose beneath ; cymes in axillary panicles, many-flowered ; flowers 

 bright purple; fruit about 1.5 cm. in diameter. " Yaxnic " (Maya). 



4. Vitex hemsleyi Briq. Bull. Herb. Boiss. 4: 347. 1896. 

 Oaxaca; type collected between Juquila and Tutapeque. 



Leaflets 5, ovate-elliptic or elliptlc-obovate, 8 to 12 cm. long, acuminate, ob- 

 tuse or acute at base, glabrous, at least in age ; cymes many-flowered ; corolla 

 7 to 8 mm. long, villous in the throat. 



2. GHINIA Schreb. Gen. PI. 19. 1789. 



Small shrubs or sometimes herbs ; leaves opposite, petiolate, coarsely toothed ; 

 flowers in long, terminal and axillary racemes; calyx tubular, 5-costate; corolla 

 with slender tube, the limb spreading, 5-lobate ; stamens 4 ; fruit dry, hard, 

 with 4 short stout spines at apex. 



Corolla 6 to 7 mm. long; leaves scaberulous on the upper surface. 



1. G. curassavica. 

 Corolla about 15 mm. long; leaves glabrous on the upper surface. 



2. G. euphrasiifolia. 



1. GMnia curassavica (L.) Millsp. Field Mus. Bot. 2: 174. 1900. 

 Verbena curassavica L. Sp. PI. 19. 1753. 



Tamonea curassavica Pers. Syn. PI. 2: 139. 1806. 



Tamonea scabra Schlecht. & Cham. Linnaea 5: 99. 1830. 



San Luis Potosf, Veracruz, and Yucatan. West Indies. 



Low shrub, or sometimes herbaceous, 60 cm. high or less; leaves ovate or 

 rhombic-ovate, 1 to 4 cm. long, obtuse or acute, coarsely crenate-serrate, 

 sparsely scaberulous ; calyx 4 mm. long. 



2. Ghinia euphrasiifolia (Robinson) Standi. 



Tamonea eupJirasiifolia Robinson, Proc. Amer. Acad. 44: 613. 1909. 

 Type from Alta Mira, Tamaulipas. 



Low much-branched shrub, the branchlets puberuleut; leaves deltoid-ovate, 

 4 to 6 mm. long, puberulent beneath ; calyx 6 mm. long. 



