Collomia

(Greek for glue, alluding to the mucilaginous character of the wetted seeds). Polemoniaceae. In Asa Gray's late treatment, Collomia is included with Gilia, although at first kept distinct by him (Proc. Amer. Acad. Arts. & Sci. XVII, 223), and this disposition is followed here, particularly since none of the species seems to be known in the trade as Collomia. Engler & Prantl keep the genus distinct, however, ascribing to it eighteen species from western North America and Chile. Such as are cultivated will be found in this Cyclopedia under Gilia. The Collomias are annual, biennial and perennial.

Colocynth

: Citrullus.

Coltsfoot

: Tussilago Farfara. Sweet coltsfoot is Petasites, formerly called Nardosma.

Columbine

: Aquilegia.

Comarella

: Potentilla.

Comarostaphy-Lis

: Arctostaphylos.

Comfrey

: Symphytum.

Compass Plant

: Silphium.

Compteris

The only published reference to this generic name and species is in G.C. III. 29: May 21, 1901, suppl. 2, where its introduction to cultivation by L. Linden is noted. The name Compteris may be a corruption, or the plant may have been a young form of some known form. The description below is quoted from The Gardeners' Chronicle.

C. Brazzaiana, Hort. Intro, in Eu. about 1900, as a remarkably distinct large fern with long bipinnate fronds narrow at base and broad across the middle and tapering to a narrow point; barren pinnae oval or oblong and simple; fertile pinnae distinctly lobed.

R. C. Benedict.

Comptonia

(Henry Compton, Bishop of London, patron of horticulture, died 1713). Myricacex. A small native shrub, useful for covering banks and to grow on sterile sandy and stony soil.

The genus is allied to Myrica, and by some not regarded as sufficiently different in botanical characters to justify separate generic rank: branching brown-twigged bush, dioecious or monoecious, with globular fertile catkins, the 1-celled ovary surrounded by 8 linear persistent scales or bractlets: leaves long-oblong, pinnatifid: fruit a bur-like axillary head of few small nuts. The only species is C. asplenifolia, Gaertn. (C. pere-grlna, Coulter. Myrica asplenifolia, Linn.) Sweet Fern. In dry, sterile soil in the E. and N. U. S.; also in the trade. It is an attractive undershrub (1-3 ft.) with fern-like, scented foliage and brownish heads of imperfect flowers: roots long and cord-like: staminate catkins 1 in. or less long, slender, in clusters at the ends of the branchlets. L. H. B.

Conandron

(cone-shaped anther). Gesneriaceae. Almost stemless herb with radical glabrous rugose leaves Differs from Streptocarpus, its nearest horticultural relative, in having a straight, not twisted pod. For cult, see Streptocarpus. It should be grown in shade and is hardy only south of N. C.

C. ramondioides, Sieb. & Zucc, of Japanese mountains, is the only species. It is an interesting little tuberous-rooted herb, with oblong, rugose, irregularly toothed root-leaves and scapes bearing 6-42 white or purple, dodecatheon-like flowers: cymes nodding or drooping pubescent; corolla 1 in. diam.: seeds very minute.

B.M. 6484

This is one of several groups of rare and widely scattered herbs, of which Ramondia, Haberlea, Wulfenia, Didymocarpus, Shortia and Schizocodon are examples. Conandron is adapted to growing in shady rockeries. Scapes less than 1 ft. high. Little known in cultivation, but is in the trade. N. Taylor.†