Part 2, 1921] RUBIACEAE 97 



1. Manettia coccinea (Aubl.) Willd. Sp. PI. 1: 624. 1797. 



Nacibea coccinea Aubl. PI. Guian. 96. 1775. 



Manettia unijlora H. B. K. Nov. Gen. & Sp. 3: 387. 1820. 



Manettia havanensis H. B. K. Nov. Gen. & Sp. 3: 388. 1820. 



Manettia cuspidata Bertero; Spreng. Syst. 1: 415. 1825. 



? Manettia tenuifolia Schultes, in R. & S. Syst. Veg. Mant. 3: 145. 1827. 



Bonvardia unijlora A. Rich. Mem. Soc. Hist. Nat. Paris 5: 272. 1834. 



Bcuvardia havanensis A. Rich. Mem. Soc. Hist. Nat. Paris 5: 272. 1834. t 



Manettia panamensis Uuchass. & Walp. Linnaea 23: 733. 1850. 



Manettia costaricensis Wernham, Gen. Manettia 38. 1919. 



Stems herbaceous or suffrutescent below, slender, angulate, glabrous, puberulent, or short- 

 pilose, usually retrorse-pilose on the angles, the internodes short or elongate; stipules 1-2 mm. 

 long, denticulate; petioles slender or stout, 2-14 mm. long; leaf-blades lanceolate, ovate, or 

 ovate-oblong, 3-10 cm. long, 1-5 cm. wide, acute or obtuse at the base, often short-decurrent, 

 acute or usually subabruptly acuminate at the apex, thin, bright-green above, glabrous or 

 scaberulous, paler beneath, short-pilose, especially along the veins, or glabrous, the lateral 

 veins conspicuous, arcuate; peduncles axillary, elongate, mostly 1 -flowered but often cymosely 

 few-flowered, the pedicels slender, 1.5-6 cm. long; hypanthium 3-5 mm. long, contracted and 

 slightly prolonged above the ovary, glabrous or short-pilose, the 8 calyx-lobes subequal, linear 

 or oblanceolate, attenuate, 4-14 mm. long, glabrous or sparsely short-pilose, ciliate, recurved; 

 corolla subsalverform, 1.7-2.8 cm. long, red, more or less pilose outside, densely barbate within 

 at the base, sparsely barbate in the throat or naked, the lobes 4-5 mm. long, ovate or triangular- 

 oblong, glabrous within or nearly so; stamens inserted in the corolla-throat, included, the 

 anthers 2.5-3 mm. long; capsule 6-10 mm. long, 6-8 mm. broad, thin; seeds 2-3 mm. broad, 

 the wing pale-brown, the body dark-brown. 



Type locality: French Guiana. 



Distribution: Veracruz and Oaxaca, south to Colombia and the Guianas; Cuba, Jamaica, 

 St. Vincent, and Trinidad. 



Illustration: Aubl. PI. Guian. pi. 37, f. 1. 



2. Manettia orbif era Wernham, Gen. Manettia 41. 1919. 



Stems scandent, filiform, glabrous; stipules reduced to a very short truncate sheath, this 

 sometimes glandular- fimbriate ; petioles 1 cm. long or shorter; leaf-blades ovate, 4-7 cm. long, 

 2-3 cm. wide, sometimes unequal at the base, acutely acuminate at the apex; flowers axillary, 

 solitary, the pedicels 2 cm. long or shorter; calyx-lobes 5-8, linear-lanceolate, 6 mm. long or 

 longer, acuminate, glabrous; corolla salverform, the tube broad, nearly 1.5 cm. long, 4 mm. 

 broad, glabrous outside, barbate within in the throat, the lobes orbicular, 8 mm. long and wide, 

 subacute. 



Type locality: Retalhuleu, Guatemala. 



Distribution: Known only from the type locality. 



3. Manettia domingensis Sprague, Bull. Herb. Boiss. 



11.5:266. 1905. 



Stems slender, tetragonous, scaberulous, the angles retrorse-pilose; stipules truncate, 

 glandular-ciliate, pilose outside; leaves short-petiolate, the blades ovate-oblong or narrowly 

 ovate, 7-16 mm. long, 3-7 mm. wide, rounded at the base, acute at the apex, coriaceous, 

 glabrous above, beneath, especially on the costa and margin, sparsely falcate-pilose; flowers 

 axillary, solitary, the pedicels 6-7 mm. long; hypanthium oblong-turbinate, 3.5 mm. long, 

 glabrous, the 4 calyx-lobes oblong, obtuse, 2.5 mm. long, glabrous; corolla-tube 2.5 cm. long, 

 villous within, the lobes deltoid-lanceolate, 6 mm. long, about 4 mm. wide at the base; stamens 

 inserted about 1 mm. below the top of the corolla-tube, the filaments 6 mm. long, the anthers 

 2.7 mm. long; style slightly exceeding the stamens. 



Type locality: In pine woods, Valle Nuevo, Santo Domingo, altitude 1900 meters. 



Distribution: Known only from the type locality. 



4. Manettia hirtella Mart. & Gal. Bull. Acad. Brux. 



II 1 : 238. 1844. 



Lygistum hirtellum Kuntze, Rev. Gen. 287. 1891. 



Stems herbaceous, slender, tetragonous, glabrous; leaves petiolate, the blades ovate, 

 3.7 cm. long, 1.2 cm. broad, attenuate at the base, acute at the apex, hirtellous above, paler 



