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Filaments of the lower stamens c. 1·6 mm. long, those of the upper ones c. 2 mm. long; anthers apiculate, yellow, those of the lower stamens 1·6-2 mm. long and c. 8 mm. below the sinuses between the corolla-lobes, those of the upper ones c. 1-1·25 mm. long, slightly exserted.
Corolla-tube 43-50 mm. long and 7-12·6 mm. in diameter at the subquadrangular base, thence attenuate, pale green; corolla-lobes 18·25 x 9·5-15 mm., lanceolate to elliptic, acute but not apiculate, pure white, spreading.
Flowers large, upright, in 3-8-flowered cymes, forming corymbose inflorescences 22-30 x 15-22 cm., with suberect branches; pedicels 16-19 mm. long and 1·5-2 mm. in diameter, glaucous.
Calyx-tube 1-1·75 mm. long; sepals 6-12 mm. long and 1-4 mm. broad at the base, oblong, attenuate, obtuse to acute, separated by rounded sinuses, fleshy.
Carpels 16-22 mm. long; styles 22-24 mm. long, filiform; stigmas included, c. 3 mm. below the base of corolla-lobes.
Stem 1·8-2·5 cm. in diameter at the base, erect, stout, terete, smooth, glaucous.
A completely glabrous, 60-75 cm. high, perennial succulent.
Scales c. 10·5 mm. long, linear, bifid.
