Diotis

(two-eared, denoting the structure). Cotn-pdsitse. One cottony perennial on sea sands of Eu., sometimes planted in rock-gardens and for edgings. D. candidissima, Desf. (D. maritima, Smith). Cotton-Weed. Usually less than 1 ft. high, has hard stems almost woody at base, arising from a creeping root-stock : leaves alternate, oblong, entire or slightly toothed, about 1/2in. long: flower-heads nearly globular, 1/3in. across, in dense terminal clusters, in Aug. and Sept. It is readily prop, by seeds or cuttings. Diotis is closely allied to Achillea, being distinguished by the florets being all tubular and having 2 ears at the base of the corolla which persist and inclose the achene.

Diphylleia

(Greek, double leaf). Berberidaceae. Umbrella-Leaf. An interesting hardy perennial herb, sometimes transferred to the wild-garden.

Plant with thick creeping jointed knotty rootstocks, sending up a huge peltate cut-lobed umbrella-like radical If. on a stout stalk, and a flowering stem bearing 2 similar (but smaller and more 2-cleft) alternate leaves, which are peltate near one margin, and a terminal cyme of white flowers: sepals 6, fugacious; petals and stamens 6; ovules 5 or 6: berries globose, few-seeded. This is one of the genera having only 2 species, one of which is found in N. E. N. Amer., the other in E. Asia or Japan, of which there are two others in this family.

Cymosa

Michx. Root-leaves 1-2 ft. across, 2-cleft, each division 5-7-lobed; lobes toothed: stem 1-4 ft. tall: berries blue. May. Wet or springy places in mountains from Va. to Ga. B.M. 1666. - Grows readily in dry soil under cult, but is dwarf.

Diphysa

(two bladders, because of the structure of the pod). Leguminosae. Shrubs or trees, usually glandular, with odd-pinnate leaves and papilionaceous flowers, of about 10 or 12 species in Mex., Cent. Amer., to Venezuela, rarely seen in cult, abroad in warmhouses: calyx with 5 unlike teeth, the 2 upper short; standard of the corolla orbicular, clawed, with 2 callosities inside; wings obovate or oblong or nearly lanceolate; keel as long as the wings or somewhat longer: fruit a stipitate more or less inflated pod: flowers yellow, in short racemes or fascicles. D. carthagenensis, Jacq., is a shrub or small unarmed tree, with 2-3-flowered axillary peduncles, and about 5 pairs of leaflets D. floribunda, Peyr., has been offered in S. Calif.: much-branching shrub: leaves alternate; leaflets 7-13, elliptic or broad-oblong, the mid-nerve ending in a mucro: flowers yellow, in short secund racemes; standard strongly reflexed, 1/2in. broad. S. Mex. L H. B.

Diplacus

: Mimulus.

Diploglottis

(double-tongued, referring to the divided scale inside the petals). Sapindaceae. Australian tree; one species: D. australis, Radlk. (D. Cun-ninghamii, Hook, f.), mentioned in recent horticultural literature. Leaves large (1-2 ft. or more), pinnate, more or less villous; leaflets 8-12, oblong-elliptic to ovate-lanceolate, sometimes more than 1 ft. long: flowers greenish, many, in a large panicle; calyx deeply 5-lobed, small; petals about twice as long as calyx (1/4in.), 4, thin, orbicular, ciliate, about equaled by the 2 inner scales; stamens 8, exserted or included; ovary 3-celled, the style short and incurved, stigma entire or somewhat 3-lobed: fruit a nearly globular 3-valved caps., tomentose, about 1/2in. diam. B.M. 4470 (as Cupania Cunning-hamii).