(from the Greek goddess, whose name signifies concealment; referring to its rarity and beauty). Orchidalceae. One of the rarest and most prized native orchids.

A delicate bog-plant, 3-4 in. high, with a small bulb, 1 roundish or ovate striated If., and 1 pink flower with a spotted sac. For culture, see Calopogon; but more difficult to grow than that plant. A monotypic genus.

Bulbosa

Oakes. Fig. 754. leaf an inch wide and long: scape 3-4 in. high, with about 3 sheaths; sepals and petals similar, ascending, lanceolate, acuminate, pink; lip larger than the rest of the flower, with brown spots in lines and purple and yellow markings, woolly-hairy within; column petal-like, ovate, bearing the lid-like anther just below the apex. Maine to Minn, and N.; also Eu. Abundant in parts of Ore. and Wash. B.M. 2763. G.C.II. 16:656.

Fig. 754. Calypso borealis.

These are deciduous shrubs of aromatic fragrance, with opposite rather large leaves usually rough above and brown or brownish usually fragrant flowers, terminal on leafy branchlets followed by a large capsulelike dry fruit. Except C. occidentalis, the species are hardy or nearly hardy North. They grow in almost any well-drained and somewhat rich soil, and succeed as well in shady as in sunny positions. Propagated by seeds sown in spring; also increased by layers put down in summer, and by suckers or division of older plants.

Fig. 752. Calycanthus floridus.

a. Leaves densely pubescent beneath.

Floridus

Linn. Fig. 752. Three to 6 ft.: leaves oval or broad-ovate, acuminate, dark green above, pale or grayish green beneath, 1 1/2-3 in. long: flowers dark reddish brown, fragrant, about 2 in. broad. Va. to Fla. B.M. 503. Gn. 21, p. 184; 33, p. 392. - This species is much cultivated for its very fragrant flowers and is the hardiest of all. variety ovatus, Lav. (C. ovatus, Ait.). Leaves ovate to ovate-oblong, rounded or subcordate at the base. L.I. 24.

aa. Leaves glabrous beneath or nearly so: flowers slightly or not fragrant.

Fertilis

Walt. (C. ferax, Michx. C. laevigatus, Willd. C. nana, Loisel.). Three to 6 ft.: leaves usually elliptic or oblong, acute or acuminate, green beneath, 2-5 1/2 in. long: flowers reddish brown, 1 1/2 in. broad; anthers oblong: fruit ovoid, contracted at the mouth as in the preceding species. Alleghanies; from Ga. to N. C. and Ala. B.R. 6:481. - Roots, leaves and bark used for their antiperiodic properties. fruit said to be poisonous to sheep. variety glaucus, Schneid. (C. glaucus, Willd.). Fig. 753. Leaves usually ovate or oblong-ovate, acuminate, glaucous beneath: flowers paler. B.R. 5:404. variety oblongifplius, Nutt., with oblong-lanceolate leaves glaucous beneath.

Fig. 753. Calycanthus tertilis variety glaucus. (X 1/3)

Occidentalis

Hook. & Arn. (C. macrophyllus, Hort.). To 12 ft.: leaves usually rounded at the base, ovate or oblong-ovate, green beneath and sometimes slightly pubescent, 4-6 in. long: flowers light brown, 3 in. broad; anthers linear: fruit campanulate, not contracted at the mouth. Calif. B.M. 4808. F.S. 11:1113. R.H. 1854: 341. Gn. 33, p. 392.,

C. Mohrii, Small. Shrub, 2-6 ft.: leaves ovate to oblong-ovate at the base, rounded to subcordate or broadly cuneate, densely pubescent beneath, 2-7 in. long: flowers purple, fragrant, more than 2 in. across. Tenn, and Ala. Little-known species, very similar to C. floridus variety ovatus, but the fruit campanulate and not contracted at the mouth. It has proved hardy at the Arnold Arboretum. - C, praecox, Linn.=Meratia praecox. Alfred Rehder.