110 NORTH AMERICAN FLORA [Volume 32 



long, densely tomentose; calyx-lobes linear or lanceolate, 5-8 mm. long, acute, tomentose; 



corolla densely villous-tomentose outside, the tube 4-5 cm. long, about 2 mm. thick above, 



the lobes spreading, oblong or elliptic-oblong, 8-9 mm. long, 3 mm. wide, acute, villosulous 



within; anthers linear, 4 mm. long; style-branches slender, 5 mm. long. 



Type locality: Chiapas. 

 Distribution: Chiapas. 



26. Bouvardia Langlassei Standley, sp. nov. 



? Bouvardia longiflora latifolia Mart. & Gal. Bull. Acad. Brux. II 1 : 236. 1844. 



Shrub, about 1 meter high, the branches stout, subangulate, brown or grayish, hirtellous 

 or villosulous when young, the internodes short; stipules 3-5 mm. long, lobed or laciniate, 

 villosulous; leaves opposite, the petioles slender, 3-7 mm. long, hirtellous or villosulous, the 

 blades ovate, lanceolate, ovate-rhombic, or oblong-rhombic, 1.7-4 cm. long, 0.5-1.4 cm. wide, 

 acute or obtuse at the base, more or less decurrent, long-attenuate to obtuse or even rounded 

 at the apex, thin, subconcolorous, villosulous or glabrate above, hirtellous or villosulous be- 

 neath, the lateral veins plane, ascending at an acute angle; flowers terminal, solitary, sessile 

 or subsessile; hypanthium subglobose, 2-3 mm. long, densely villous or tomentulose; calyx- 

 lobes linear or lance-linear, 3-9 mm. long, villosulous; corolla white, the tube very slender, 

 4.5-5.5 cm. long, 1.5-2 mm. thick above, villosulous or hirtellous above, glabrous below, the 

 lobes oblong or elliptic-oblong, 1-1.7 cm. long, 3-5 mm. wide, obtuse or acute, glabrous, 

 spreading; anthers linear, 3-3.5 mm. long. 



Type collected at Testla, Michoacan or Guerrero, altitude 1500 meters, June, 1899, E. Langlasse 

 1049 (U. S. Nat. Herb. no. 386352). 



Distribution: Guerrero and Oaxaca. 



27. Bouvardia erecta (DC.) Standley. 



Catesbaea erecta DC. Prodr. 4: 401. 1830. 



Hedyotis spinescens Sesse & Moc. Fl. Mex. 22. 1893. 



Bouvardia Flos-Joannis K. Schumann, in Loesener, Bull. Herb. Boiss. 3: 621. 1895. 



Shrub, 1-2 dm. high, the branches stout, rigid, spreading, subangulate or acutely angulate, 

 scaberulous when young, the internodes very short; stipule-sheath very short, pluriaristate.; 

 leaves opposite, subsessile or short-petiolate, the blades lanceolate or linear-lanceolate, 5-16 

 mm. long, 1-4 mm. wide, acute to attenuate at the base, attenuate to the acute apex, yellowish- 

 green, scaberulous or glabrate, the venation mostly obsolete; flowers terminal and axillary, 

 mostly in sessile 3-flowered cymes, the pedicels 1-5 mm. long; hypanthium about 1.5 mm. long, 

 hemispheric, scaberulous; calyx-lobes lance-triangular or lance-linear, 2.5-6 mm. long, thick, 

 scaberulous; corolla white, pruinose-puberulent or glabrate outside, the tube 1.8-5.5 cm. long, 

 glabrous within, the lobes oblong or elliptic, 5-11 mm. long, acute or subobtuse, spreading, 

 sometimes sparsely villous within; anthers subsessile, included, 3.5 mm. long; style included. 



Type locality: [Near Tehuacan, Puebla] Mexico. 



Distribution: Puebla. 



Illustrations: Bull. Herb. Boiss. 3: pi. 17. f. 5; Moc. & Sesse, Calq. Dess. pi. 460. 



28. Bouvardia glabra Polak. Linnaea 41: 565. 1877. 



Bouvardia glabra gracilis Polak. Linnaea 41: 566. 1877. 



Shrub, the branches stout, subangulate, grayish, the internodes short or elongate; stipule- 

 sheath short, cuspidate and glandular-aristate ; leaves opposite, the petioles stout, 2-9 mm. long, 

 glabrous, the blades ovate, lance-ovate, or broadly ovate, 3-7 cm. long, 0.8-2.5 cm. wide, 

 obtuse or abruptly short-acuminate at the base, acute to attenuate at the apex, thin, glabrous, 

 bright-green above, paler beneath, the lateral veins few, conspicuous, arcuate, ascending at 

 an acute angle; flowers in terminal or axillary, pedunculate, mostly 3-5-flowered cymes, the 

 pedicels 2-12 mm. long or sometimes wanting, glabrous; bracts usually large and leaf-like; 

 hypanthium 2 mm. long, glabrous; calyx-lobes lanceolate, elliptic, or oblanceolate, foliaceous, 

 4-12 mm. long, acute, scaberulous on the margins; corolla white, glabrous outside, the tube 

 slender, 1.5-3.5 cm. long, about 1 mm. thick, glabrous within, the lobes oblong or elliptic, 

 6-11 mm. long, 2-5 mm. wide, acute or acutish, glabrous wit'iin; anthers sessile or nearly so, 



