Callista

: Dendrobium.

Callopsis

(Calla-Like)

Araceae. A single species from German E. Africa: C. Volkensii, Engler. Spathe like that of a little calla, snow-white, 1 1/4 in. long by 1 in. broad, the spadix partly united to it (and yellow): leaves crowded, cordate-ovate, 5 in. long, shining, the petiole about 2 in. long; semi-epiphytic, with creeping rhizome. Probably cult, only in botanic gardens or other collections.

Caloscordum

: Nothoscordum.

Caltrops

: Trapa.

Calvoa

(apparently a personal name). Melas-tomaceae. A half-dozen or more herbs and shrubs in tropical Africa, often succulent, with terete or 4-angled branches, enlarged nodes, long-petioled ovate 3-5-nerved leaves, and red, rosy or violet flowers in scorpioid cymes. None of them is likely to be in commerce for cultivation, although C. orientalis, Taub., is known in botanic gardens. It is a small shrub with 4-angled stems producing aerial roots: leaves nearly ovate, shining green and veined red at the base, the petioles red: flowers red, becoming violet, less than 3/4in. across.

Calycanthus

(Kalyx and anthos, flower; the calyx is large and conspicuous). Syn. Butneria. Calycanthaceae. Carolina Allspice. Sweet-scented Shrub. Ornamental shrubs, cultivated chiefly for their fragrant flowers.

Winter-buds small, without bud-scales, hidden by the base of petiole before the leaves fall: leaves opposite, petioled, entire: flowers with numerous imbricate sepals and no distinct petals; stamens many, short with innate anthers; pistils many, inclosed in a hollow receptacle: fruit caps. - ke, formed like the rose-hip by the calyx-tube and containing numerous achenes. - Four species in N. Amer.

Calycocarpum

(Greek, cup-fruit, alluding to the stone). Menispermaceae. A tall-climbing vine: genus monotypic. C. Lyonii, Nutt., in rich woods, Ky. to Kans. and south: woody twiner: leaves large and broad, simple, deeply palmately 3-5-lobed, the lobes pointed: flowers small, greenish, in long racemose panicles, in May and June: fruit a globular drupe, the stone or pit hollowed out on one side, ripe in Aug.

Calystegia

: Convolvulus.

Camarotis

(a, vault, in reference to the cavity in the apex of the lip). Orchidaceae. Epiphytic hothouse orchids.

Stems elongated, with short leaves, and many-flowered racemes: sepals and petals similar, spreading; lip spurred, 3-lobed; rostellum and anther beaked; pollinia 2, upon long thin stipes. - Species 2, in E. India.

Rostrata

Reichb. (C. purpurea, Lindl. Sarchochilus purpureus, Benth.). Fig. 755. stems 2-3 ft. long, climbing: leaves oblong-linear, bifid at apex, 3-4 in. long: racemes longer than leaves; flowers crowded, about 1 in. diam., rose-purple, the lip somewhat darker. India. P.M. 7:25. - A scarce plant, now offered in American lists. Free-growing plant with aerial roots similar to some epidendrums. The treatment accorded to the vandas and saccolabiums with similar roots will suit the camarotis. George V. Nash.

Camarotis rostrata.

Fig. 755. Camarotis rostrata.