Part 2, 1921] RUBIACEAE 109 



22. Bouvardia gracilipes B. L. Robinson, Proc. Am. Acad. 

 45:404. 1910. 



Shrub, the branches slender, terete or subangulate, grayish, glabrous, the internodes 

 mostly elongate; stipule-sheath short, more or less dentate or laciniate, long-subulate; leaves 

 opposite, the petioles slender or stout, 2-3 mm. long, puberulent, the blades ovate or lance- 

 oblong, 3.5-6.5 cm. long, 1.4-2.2 cm. wide, rounded at the base, long-attenuate at the apex, 

 thin, subconcolorous, puberulent beneath along the veins, the costa slender, prominent be- 

 neath, the lateral veins few, distant, arcuate, the secondary veins finely reticulate; inflorescence 

 axillary and terminal, cymose-corymbose, many-flowered, short-pedunculate, the pedicels 

 slender, 5-18 mm. long, glabrous; calyx-lobes lance-subulate, 1-1.5 mm. long, glabrous, often 

 ciliate; capsule didymous-globose, 4-6 mm. broad, glabrous; seeds suborbicular, about 2 mm. 

 broad, dark-brown, broadly winged. 



Type locality: Tepic, Tepic. 



Distribution: Known only from the type locality. 



23. Bouvardia dictyoneura Standley, sp. nov. 



Stems slender, terete, herbaceous or suffruticose, grayish, glabrous, or sparsely pilose at 

 the nodes; stipules short, subulate; leaves opposite, sessile or short-petiolate, the blades lance- 

 olate or lance-ovate, 2.5-9 cm. long, 1.2-4 cm. wide, rounded at the base, long-attenuate to the 

 apex, membranaceous or chartaceous, prominently reticulate-veined, concolorous, glabrous, 

 the costa and lateral veins impressed above, prominent beneath, the lateral veins 5 or 6 on 

 each side, arcuate-ascending; inflorescence terminal, cymose-corymbose, usually many- 

 flowered, the pedicels slender, 3-10 mm. long; hypanthium glabrous, hemispheric, 1-1.5 mm. 

 long, costate; calyx-lobes linear-subulate, 2.5-3.5 mm. long; corolla glabrous outside, the tube 

 stout, about 11 mm. long, 1.5-2 mm. thick, with a villous ring within near the base, the lobes 

 ovate-oval, 3.5-4 mm. long, acute or acutish, ascending; anthers sessile, included, 2.5 mm. 

 long; style included; capsule subglobose, 4-5 mm. broad, costate, reticulate-veined. 



Type collected at Chichorras, Chiapas, February, 1896, E. W. Nelson 3757 (U. S. Nat. Herb. 

 no. 256554). 



Distribution: Chiapas. 



24. Bouvardia Rosei Standley, sp. nov. 



Shrub, the branches stout, subangulate, grayish, pruinose-puberulent when young, the 

 internodes short; stipules 3-5 mm. long, the base triangular, the apex subulate-cuspidate; 

 leaves opposite, sessile, the blades oval-ovate, broadly ovate-oval, or ovate, 2-3.5 cm. long, 

 0.8-1.5 cm. wide, rounded or obtuse at the base, obtuse to short-acuminate at the apex, rather 

 thick, subconcolorous, minutely scaberulous above when young, glabrous beneath; inflorescence 

 terminal or axillary, usually 3-5-flowered, the flowers sessile; hypanthium 4 mm. long, pruinose- 

 puberulent; calyx-tube about 2 mm. long, the lobes linear or lance-linear, 7-11 mm. long, 

 acute to attenuate, scaberulo-ciliolate ; corolla white, glabrous outside, the tube slender, 4.5-6 

 cm. long, 2.5 mm. thick above, the lobes oblong or elliptic-oblong, 12-16 mm. long, 4.5-6 mm. 

 wide, acute or acutish, sparsely villosulous within; anthers oblong-linear, 4 mm. long, included; 

 style-branches slender, about 5 mm. long. 



Type collected in the Sierra Madre, Durango, August 16, 1897, J. N. Rose 3516 (U. S. Nat. 

 Herb. no. 302493). 



25. Bouvardia induta (B. L. Robinson) Standley, sp. nov. 



Bouvardia longiflora induta B. L. Robinson, Proc. Am. Acad. 45: 404. 1910. 



Shrub, about 4 dm. high, sparsely branched, the branches slender, subangulate, densely 

 grayish-hirtellous ; stipules triangular-acuminate, 1-2 mm. long, hirtellous; leaves opposite, the 

 petioles stout, 1-3 mm. long, hirtellous, the blades ovate or lance-ovate, 2-3 cm. long, 0.6- 

 1.2 cm. wide, acute or acuminate at the base and short-decurrent, acute to long-attenuate at 

 the apex, thick, concolorous, densely hirtellous or villosulous above, densely villous-tomentose 

 beneath, the lateral veins nearly obsolete, the margin plane or subrevolute; flowers axillary 

 and terminal, mostly in 3-flowered cymes, sessile or nearly so; hypanthium subglobose, 2-3 mm. 



