1154 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



chronic cutaneous diseases and to destroy parasites. It is also administered 

 internally for syphilitic affections. 



The calyx lobes are usually very obtuse, but in a specimen from Acapulca 

 they are acuminate. The same variation is found in West Indian specimens. 



2. Eauwolfia longif olia A. DC. in DC. Prodr. 8 : 338. 1844. 

 Veracruz and Oaxaca ; type from San Miguel Sola, Oaxaca. 



Leaves ternate, 7.5 to 12.5 cm. long, 1 to 2 cm. wide, acuminate at each 

 end, glabrous; cymes many-flowered; calyx glabrous, the lobes ovate, acute; 

 flowers 12 mm. long, the corolla lobes acute. 



3. Rauwolfia heterophylla Roem. & Schult. Syst. Veg. 4: 105. 1819. 

 Sinaloa to San Luis PotosI, Veracruz, Yucatan, Tabasco, and Oaxaca. Cuba ; 



Central and South America. 



Shrub, 1 to 2 meters high ; leaves in whorls of 3 to 5, 3 to 10 cm. long, 

 acute or acuminate, usually acute at base, glabrous or pubescent only beneath 

 along the costa ; cymes few-flowered ; calyx lobes obtuse, usually ciliate ; co- 

 rolla greenish white, about 2.5 mm. long; fruit 6 to 8 mm. in diameter, red 

 at first, purple-black at maturity. "Cabamuc' (Yucatan) ; " sarna de perro"^ 

 (Colima) ; " cocotombo " (Guerrero, Sess4 d Mocifio) ; " guataco colorado,*^ 

 " viborilla," " comida de culebra " (Nicaragua); " cohatac6 " (Costa Rica); 

 " senorita," " amatillo," " hierba de San Jose," " niatacoyote " (El Salvador), 



The plant has milky sap. The crushed root was employed in Guerrero, ac- 

 cording to Sess6 and Mocifio* (who list the plant as Rauwolfia nitida, a West 

 Indian species), as a remedy for erysipelas, and the leaves for healing ulcers. 

 In Colima the root decoction is used as a gargle for the throat and as a wash 

 for the gums. The juice of the fruit is used as ink and also for dyeing. The 

 fruit itself is reputed to be poisonous. 



5. TONDUZIA Pittier, Contr. U. S. Nat. Herb. 12: 103. 1908. 



Two other Central American species have been described. The genus was 

 named for Senor Don Adolfo Tonduz, well known for his botanical work in 

 Costa Rica. 



1. Tonduzia parvifolia Pittier, Contr. U. S. Nat. Herb. 12: 103. 1908. 



Oaxaca. Costa Rica ; type from Angostura. 



Shrub or small tree, glabrous; leaves mostly verticillate, petiolate, linear- 

 lanceolate or narrowly oblong-lanceolate, 6 to 12 cm. long, acuminate or at- 

 tenuate, attenuate at base, coriaceous; flowers white, in terminal and axillary 

 cymes ; calyx 5-parted, 1 to 1.2 mm. long ; corolla salverform, the tube 4 to 5 

 mm. long; carpels slender, terete; seeds flat, elliptic, ciliate. " Chamicillo " 

 (Oaxaca). 



6. TABERNAEMONTANA L. Sp. PI. 210. 1753. 



Shrubs or trees, usually glabrous ; leaves opposite ; flowers in terminal cj'mes, 

 sometimes sublateral, white or yellowish ; calyx 5-lobate, glandular within ; 

 corolla salverform, the tube cylindric, the lobes contorted; anthers sagittate, 

 not appendaged; fruit of 2 fleshy short follicles. 



Calyx lobes linear-subulate; flowers 5 cm. long 1. T. litoralis. 



Calyx lobes ovate, usually obtuse ; flowers less than 5 cm. long. 



Tips of the antliers not exserted 2. T. citrifolia. 



Tips of the anthers exserted. 



Corolla tube about 6 mm. long 3. T. alba. 



Corolla tube 8 to 15 mm. long 4. T. amygdalifolia. 



'PI. Nov. Hisp. 32. 1887. 



