Mascarenhasia
(from the Mascarene Islands, where it is found). ORD. Apocynaceae. This genus comprises about four species of stove shrubs or small trees, natives of Madagascar. Flowers whitish-purple, sub-sessile in the nodes, fasciculate or sub-solitary, terminal, or in one species scarcely axillary, large; calyx small, five-parted, the segments ovate or narrow; corolla salver-shaped, the tube cylindrical, the throat contracted; lobes five, ovate, twisted. Leaves opposite. For culture of the under-mentioned species, see Dipladenia.
M. Curnowiana (Curnow's).* fl., corolla scarlet, glabrous; tube 2/3in. long, swollen above; lobes nearly 1in. long, ovate-lanceolate, acuminate; calyx of five subulate, erect teeth, much shorter than the corolla tube; cymes terminal, few-flowered; peduncles rather longer than the petioles; pedicels shorter. August. l. opposite, 3in. to 4in. long, shortly stalked, oblong or oblong-lanceolate, entire, obtusely pointed, the base acute and rounded; petioles 1/10in. long. A slender shrub. (B. M. 6612.)