1158 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



leaves in oil has been used as a remedy for cutaneous diseases and to de- 

 stroy parasites. In Venezuela the juice of the leaves has been employed for 

 keeping away or destroying flies, and also to remove warts. 



11. THENARDIA H. B. K. Nov. Gen. & Sp. 3: 210. 1819. 



Scandent shrubs ; leaves opposite, petiolate ; flowers in umbel-like cymes, 

 pseudo-axillary, slender-pedicellate ; calyx 5-parted, glandular within ; corolla 

 subrotate, the tube very short, the lobes dextrorsely contorted ; stamens ex- 

 serted, the anthers sagittate, connivent, appendaged at base ; fruit of 2 elon- 

 gate follicles. 



Corolla about 12 mm. long 1. T. floribunda. 



Corolla 6 mm. long 2. T. galeottiana. 



1. Thenardia floribunda H. B. K. Nov. Gen. & Sp. 3: 210. pi. 21(0. 1819. 

 Thenardia suaveolens Mart. & Gal. Bull. Acad. Brux. 11: 359. 1844. 

 Michoacan to Mexico and Oaxaca ; type collected near the City of Mexico. 

 Large vine, glabrous throughout, the branches slender; leaves slender-petio- 



late, lance-oblong or ovate-oblong, 5.5 to 13.5 cm. long, acuminate or long- 

 acuminate, obtuse at base; cymes pedunculate, many-flowered, 8 to 11 cm. 

 broad, the flowers greenish white, sometimes tinged with purple ; anthers 5 

 to 6 ram. long. " Petatillo " (Oaxaca). 



2. Thenardia galeottiana Baill. Bull. Soc. Linn. Paris 2: 819. 1890. 

 Guerrero and Oaxaca. 



Stems slender, glabrous; leaves lanceolate or narrowly lanceolate, 4 to 7.5 

 cm. long, attenuate, obtuse or acute at base; cymes few-flowered, about 3 cm. 

 broad, puberulent ; anthers 2.5 mm. long. 



12. FORSTERONIA Meyer, Prim. Fl. Esseq. 135. 1818. 



1. Forsteronia spicata (Jacq.) Meyer, Prim. Fl. Esseq. 135. 1818. 



Echites spicata Jacq. Enum. PI. Carib. 13. 1760. 



Michoacan or Guerrero ; reported from Campeche. Guatemala ; Colombia, 

 the type from Cartagena. 



Woody vine; leaves opposite, short-petiolate, oblong to broadly oval, 5 to 15 

 cm. long, abruptly short-acuminate, rounded or obtuse at base, sparsely pilosu- 

 lous beneath or glabrate ; flowers white, the cymes spiciform, dense, terminal 

 and axillary; calyx lobes ovate, acuminate, corolla 4 to 5 mm, long, pubescent 

 outside and within, the lobes acute. 



The writer has seen no Colombian specimens, but the Mexican plant agrees 

 well with the descriptions. The latter may, however, represent a distinct 

 species. 



13. PRESTONIA R. Br. Mem. Wern. Soc. 1: 69. 1809. 



Scandent shrubs; leaves opposite, petiolate; flowers in cymes, these pseudo- 

 axillary ; calyx 5-parted, the segments broad or narrow ; corolla salverform, 

 the tube slender, the 5 lobes broad, dextrorsely contorted ; anthers sagittate, 

 •connivent, semiexserted, appendaged at base ; follicles erect or divergent. 



Calj^ lobes linear or linear-lanceolate. 



Leaves velutinous-pubescent beneath 1. P. contorta. 



Leaves obscurely puberulent or glabrate beneath 2. P. langlassei. 



Calyx lobes ovate or ovate-cordate. 



Leaves glabrous 3. P. schizadenia. 



Leaves densely sericeous or pilose. 



Leaves broadly elliptic or rounded-elliptic 4. P. mexicana. 



Leaves ovate-lanceolate : 5- P. sericea. 



