Bouvardia multiflora (Cav.) Schult. & Schult. fil.

Bouvardia heterophylla Standley, sp. nov
Shrub, the branches slender, terete, grayish, pruinose-puberulent when young, the internodes short or elongate; stipules short, long-cuspidate, sometimes laciniate; leaves opposite, the petioles slender, 2-4 mm. long, the blades suborbicular, broadly ovate, or lance-ovate, 2-4 cm. long, 0.8-3 cm. wide, obtuse to truncate at the base, usually abruptly short-decurrent, the narrower leaves attenuate or acuminate at the apex, the broader ones abruptly longor short-acuminate, with an acumen 3-8 mm. long, very thin, bright-green above, glabrous, paler beneath, glabrous or sparsely puberulent along the veins, the lateral veins evident, arcuate-ascending; flowers in terminal, sessile or short-pedunculate, 3-5-flowered cymes, the pedicels slender, 2-8 mm. long; hypanthium hemispheric, 1.5 mm. long, obscurely pruinosepuberulent; calyx-lobes lanceolate or linear, 2.5-5 mm. long, glabrous; corolla white, glabrous outside, the tube 18-21 mm. long, 2-3 mm. thick above, glabrous within, the lobes triangularoblong, 4-5 mm. long, obtuse or acutish, ascending, glabrous within; filaments elongate, the anthers exserted, about 2 mm. long; style short-exserted.
Type collected at Santa Rosa, Guatemala, altitude 1000 meters, May, 1892, Heyde b° Lux 3137 (U. S. Nat. Herb. no. 398167).
Distribution: Jalisco to Guatemala.

Bouvardia versicolor Ker, Bot. Reg. 3: pi. 245. 1817
? Bouvardia triflora hirsnta Mart. & Gal. Bull. Acad. Brux. II 1 : 236. 1844. Bouvardia bicolor Kunze, Linnaea 20: 24. 1847.
Shrub, much branched, the branches usually slender, terete, grayish, densely puberulent or hirsutulous when young, the internodes short or elongate; stipule-sheath short, often pluriaristate; leaves opposite, the petioles slender, 2-3 mm. long, the blades mostly ovate, sometimes lanceolate or broadly ovate, rounded or very obtuse at the base, acute to attenuate at the apex, thin, bright-green above, scaberulous, beneath slightly paler, hirsutulous along the veins, elsewhere scaberulous, the lateral veins evident, arcuate-ascending at an acute angle; flowers mostly in 3-5-flowered terminal cymes, these sessile or short-pedunculate, the pedicels slender, 2-6 mm. long, densely puberulent or hirsutulous, the flowers sometimes pendulous; bracts often large and leaf-like; hypanthium subglobose, 1.5-2 mm. long, densely puberulent or short-hirsutulous ; calyx-lobes lance-linear, 2-4.5 mm. long, scaberulous; corolla red, or sometimes yellow at first, glabrous outside, the tube 2.2-3.4 cm. long, tapering from top to base, 3.5-4 mm. thick above, sparsely villous within, the lobes ovate-oblong or triangularoblong, 3-5 mm. long, obtuse or acutish, glabrous within, ascending; anthers nearly sessile
or on elongate filaments, included or exserted, 1.5-2.5 mm. long; style exserted.
Type locality: Described from cultivated plants of Mexican origin. Distribution: Guanajuato to Oaxaca.

Bouvardia macrantha Standley, sp. nov
Shrub, much branched, the branches stout or slender, terete or subangulate, grayish,
densely puberulent when young, the internodes very short ; stipule-sheath very short, cuspidate
or pluriaristate; leaves opposite, the petioles slender, 1-3 mm. long, puberulent or villosulous,
the blades ovate or broadly ovate, 1-2.5 cm. long, 0.3-1.2 cm. wide, rounded to acutish at the
base, often short-decurrent, subabruptly acuminate to obtuse at the apex, thin, green above,
scaberulous or villosulous, paler beneath, sparsely scaberulous or villosulous, the lateral veins
evident beneath, ascending at a very acute angle; flowers in terminal, 3-few-flowered, sessile
or short-pedunculate cymes, the pedicels 5 mm. long or shorter; hypanthium 1.5-2 mm. long,
puberulent or hirsutulous; calyx-lobes narrowly triangular, lanceolate, or linear, 2-6 mm. long,
scaberulous; corolla white, glabrous outside, the tube 2.4-3.3 cm. long, 2.5-3 mm. thick above,
sparsely villous within, the lobes triangular-oblong or lance-oblong, ascending, 4-7 mm. long,
acute or acutish, glabrous within; anthers subsessile, included, and 2 mm. long, or on long
filaments, exserted, and about 1 mm. long; style included or exserted; capsule subglobose,
almost wholly inferior, 4-6 mm. in diameter.
Type collected at Tlalcuilotepec, Puebla, altitude 2100 to 2400 meters, July, 1909, C. A. Pur pus 3981 (U. S. Nat. Herb. no. 841341). Distribution: Jalisco to Oaxaca.

Bouvardia multiflora (Cav.) Schultes, in R. & S. Syst Veg. Mant. 3: 118. 1827.
Aeginetia multiflora Cav. Anal. Ci. Nat. 3: 131. 1801.
Bouvardia triflora H. B. K. Nov. Gen. & Sp. 3: 386. 1820.
Ceslrum s per macocei folium Willd.; R. & S. Syst. Veg. 4: 808, as synonym. 1819.
Bouvardia Cavanillesii DC. Prodr. 4: 366. 1830.
Anotis longiflora Benth. PI. Hartw. 23. 1839. ? Bouvardia Schiedeana Schlecht. Linnaea 26: 123. 1854.
Houstonia iriflora A. Gray, Proc. Am. Acad. 4: 314. 1860.
Bouvardia gracilis A. Gray, Proc. Am. Acad. 22: 306. 1887.
Bouvardia versicolor graciliflora A. Gray, in S. Wats. Proc. Am. Acad. 22: 416. 1887.
Shrub, 1-1.5 meters high, the branches stout or slender, terete or subangulate, brown or grayish, rimose, finely puberulent when young; stipule-sheath short, long-cuspidate, dentate or laciniate; leaves opposite, the petioles slender, 1-6 mm. long, puberulent, the blades lanceolate, ovate, or broadly ovate, 1.5-5 cm. long, 0.4-1.6 cm. wide, very obtuse to acuminate at the base, short-decurrent, acute to attenuate at the apex or rarely obtuse, thin, subconcolorous, finely puberulent or scaberulous, sometimes glabrate in age; flowers in terminal and axillary, 3-5fiowered, sessile or short-pedunculate cymes, the pedicels 3 mm. long or shorter; hypanthium densely whitish-hirsutulous; calyx-lobes oblong-lanceolate or lance-subulate, 2-10 mm. long, hirtellous; corolla white or greenish-white, glabrous outside, the tube slender, 10-15 mm. long, 1.5-2 mm. thick in the throat, sparsely villous within near the base, the lobes oblong, spreading, 4-5 mm. long, acute or acutish, glabrous within; filaments usually elongate, the anthers exserted, 1-1.5 mm. long; capsule didymous-globose, 4-6 mm. broad, almost wholly inferior, glabrous, the pedicel usually recurved; seeds orbicular, 2-3 mm. broad, dark-brown, broadly winged.
Type locality: Mexico.
Distribution: Cliffs and rocky hillsides. Chihuahua to Queretaro and Guerrero.

Bouvardia multiflora là một loài thực vật có hoa trong họ Thiến thảo. Loài này được (Cav.) Schult. mô tả khoa học đầu tiên năm 1827.