Comprehensive Description

provided by North American Flora
Portlandia daphnoides Graham, Edinb. New Phil. Jour. 30: 206
Gonianthes Sagraeana A. Rich, in Sagra, Hist. Cuba 11: 11. 1850. Portlandia longiflora Meissn.; Griseb. Cat. PI. Cub. 126. 1866.
Shrub, 1-2 meters high, glabrous throughout except on the pedicels, the branches brownishgray, the branchlets stout, compressed, green, the internodes short; stipules annular, 4-1 1 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, anastomosing 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.
bibliographic citation
Paul Carpenter Standley. 1918. RUBIALES; RUBIACEAE (pars). North American flora. vol 32(1). New York Botanical Garden, New York, NY
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