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Calonyction aculeatum, House (C. speciosum, Choisy. Ipomaea Bona-noae, Linn.). Moonflower. Fig. 750. St. 10-20 ft. high, with milky juice: Ivs. 3-8 in. long, cordate to hastate, angular or 3-lobed. acute, glabrous: peduncles 2-6 in. long, 1-7-fld., equaling the petioles; corolla 3-6 in. long; 3-6 in. wide, trumpet-shaped, white, sometimes with greenish plaits; fls.fragrant,usually closing in the morning, sometimes remaining open till noon. Aug.,Sept. B.M. 752. B.R. 11:889, 917 (as Ipomaea latiflora). Gn. 21, p. 259; 27, p. 473. V. 10:359. Known in gardens chiefly as Ipomaea Bona-noae var. grandiflora, Hort. (I. grandiflora, Roxbg. and Hort., not Lam.), which does not differ materially from the type. Most of the large-fld. and very fragrant forms in cult, may be referred here. Var. grandiflorum, Hort., is sold under the following names: Ipomaea Childsii,I. noctiphyton, I. noctiflora, I. mexicana grandiflora, I. mexicana grandiflora alba, I. mexicana grandiflora vera. These trade names represent strains of varying excellence. (C. grandiflorum, Choisy, is Ipomoea Tuba.) A form with variegated lvs. is offered. Var. heterophyllum, has lvs. 3-5-lobed and subhastate.—The moonflower is most popular as a garden plant, but it also does well trained along the roof of a low house or against a pillar. It is excellent for cut-lvs. in the evening. Little grown in the open N. because it does not mature in the short seasons. It grows wild in swamps and thickets in peninsular Fla., and is probably indigenous there. Widespread in tropics of both hemispheres.

Calonyction aculeatum, House (C. speciosum, Choisy. Ipomaea Bona-noae, Linn.). Moonflower. Fig. 750. St. 10-20 ft. high, with milky juice: Ivs. 3-8 in. long, cordate to hastate, angular or 3-lobed. acute, glabrous: peduncles 2-6 in. long, 1-7-fld., equaling the petioles; corolla 3-6 in. long; 3-6 in. wide, trumpet-shaped, white, sometimes with greenish plaits; fls.fragrant,usually closing in the morning, sometimes remaining open till noon. Aug.,Sept. B.M. 752. B.R. 11:889, 917 (as Ipomaea latiflora). Gn. 21, p. 259; 27, p. 473. V. 10:359. Known in gardens chiefly as Ipomaea Bona-noae var. grandiflora, Hort. (I. grandiflora, Roxbg. and Hort., not Lam.), which does not differ materially from the type. Most of the large-fld. and very fragrant forms in cult, may be referred here. Var. grandiflorum, Hort., is sold under the following names: Ipomaea Childsii,I. noctiphyton, I. noctiflora, I. mexicana grandiflora, I. mexicana grandiflora alba, I. mexicana grandiflora vera. These trade names represent strains of varying excellence. (C. grandiflorum, Choisy, is Ipomoea Tuba.) A form with variegated lvs. is offered. Var. heterophyllum, has lvs. 3-5-lobed and subhastate.—The moonflower is most popular as a garden plant, but it also does well trained along the roof of a low house or against a pillar. It is excellent for cut-lvs. in the evening. Little grown in the open N. because it does not mature in the short seasons. It grows wild in swamps and thickets in peninsular Fla., and is probably indigenous there. Widespread in tropics of both hemispheres.

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