ParT 1, 1918] RUBIACEAE 13 
15. Portlandia mexicana (Zucc. & Mart.) Hemsl. Diag. Pl. Nov. 31. 
1879. 
Coutarea mexicana Zucc. & Mart.; DC. Prodr. 4: 350. 1830. 
Shrub, glabrous throughout, the branches yellowish-gray, the branchlets subangulate, 
green, the internodes short; stipules subannular, 3-6 mm. long, green, the lobes triangular, 
long-cuspidate; petioles stout, 3-5 mm. long, subterete; leaf-blades elliptic or very narrowly 
elliptic-oblong, 3—-7.5 cm. long, 0.7—2 cm. wide, acute or acutish at the apex, acute at the base, 
thick-coriaceous, lustrous above, paler and dull beneath, the margins revolute, the costa stout 
prominent beneath, the lateral veins evident on the upper surface, 5-8 on each side, obsolete 
beneath; flowers axillary, solitary, the pedicels stout, 3-12 mm. long, bibracteate at the base; 
hypanthium 4-5 mm. long, turbinate; calyx-lobes 5, linear or linear-subulate, 10-14 mm. long, 
acute to attenuate; corolla 6—8 cm. long, the 5 lobes triangular, rounded; capsule oval-obovoid, 
1.3-1.8 cm. long, about 1 cm. broad, obscurely costate, acute at the base, truncate at the apex, 
brownish-black. 
TYPE LOCALITY: Mexico. 
DISTRIBUTION: San Luis Potosi and Hidalgo. 
16. Portlandia daphnoides Graham, Edinb. New Phil. Jour. 30: 206. 
1841. 
Gonianthes Sagraeana A. Rich. in Sagra, Hist. Cuba 11:11. 1850. 
Portlandia longiflora Meissn.; Griseb. Cat. Pl. Cub. 126. 1866. 
Shrub, 1—2 meters high, glabrous throughout except on the pedicels, the branches brownish- 
gray, the branchlets stout, compressed, green, the internodes short; stipules annular, 4-11 mm. 
long, green, the lobes triangular, acuminate or long-cuspidate; petioles stout, 3-10 mm. long, 
semiterete, sulcate above; leaf-blades elliptic-oblong or elliptic, 7-16 cm. long, 2.5—6.5 cm. 
wide, subabruptly acute at the apex or sometimes obtuse, acute at the base and abruptly 
short-decurrent, coriaceous or subcoriaceous, scarcely paler beneath, the margins plane, the 
costa stout, prominent, the lateral veins prominent beneath, 4-8 on each side, arcuate, anasto- 
mosing near the margin; flowers axillary, sessile, the pedicels stout, 1-3 cm. long, angulate; 
hypanthium turbinate, 12-15 mm. long; calyx-lobes linear, 1.5—2 cm. long, acuminate; corolla 
white, 20-32 cm. long, the tube about 10 cm. long, 7 mm. thick; anthers linear, about 4 cm. 
long; capsule turbinate, 2.5—-3 cm. long, truncate at the apex, tapering at the base, acutely 
angulate; seeds reddish-brown, about 3 mm. long. 
TYPE LOCALITY: Cuba. 
DISTRIBUTION: On rocks along streams at lower and middle elevations, Cuba. 
17. Portlandia domingensis Britton, Bull. Torrey Club 41: 24. 
1914. 
Shrub, glabrous throughout, the branches yellowish-gray, the branchlets subterete, green, 
the internodes short; stipules annular, 5-7 mm. long, green, the lobes triangular, long-cuspi- 
date; petioles very stout, 2-3 mm. long, shallowly sulcate above; leaf-blades oval or oval- 
oblong, 5-13 cm. long, 3.5—6.5 em. wide, abruptly acute or acuminate at the apex, rounded or 
obtuse at the base, concolorous or nearly so, the margins plane or subrevolute; flowers axillary, 
solitary, the pedicels very stout, 5-8 mm. long, subangulate; calyx-lobes linear, 1.5—2.5 cm. 
long, attenuate; capsule oval-elliptic, 4-4.5 cm. long, much constricted at the apex, narrowed at 
the base, acutely 5-angulate; seeds dark reddish-brown, compressed, 3-4 mm. long, punctic- 
ulate. 
TYPE LocaALity: Near San Pedro de Macoris, Santo Domingo. 
DISTRIBUTION: Known only from the type locality. 
DOUBTFUL SPECIES 
PORTLANDIA PLATANTHA Hook. Bot. Mag. pl. 4534. 1850. Described from cultivated 
plants, the source of which was not known. ‘The species is very similar to P. grandiflora, but 
the corolla is described as only half as large. 
