362 



THE DICTIONARY OF GARDENING, 



Collinsia continued. 

 C. grandiflora (large-flowered).* /..corolla pale purple, dilated, 



retuse ; upper lip blue ; pedicels verticillate. May to July. 



1., lower ones spathulate ; superior ones oblong-linear, h. 1ft. 



Columbia, 1826. (B. R. 1107.) 

 C. parviflora (small-flowered), fi. purple, blue. June. h. 1ft. 



California, &c., 1826. Trailer. (B. B. 1082.) 

 C. sparsiflora (scattered-flowered). Jl. violet. May. h. 1ft. 



California, 1836. 

 C. tinctorla (dyers'). A. pale pink. May. h. 1ft. California, 



C. verna (spring).* /., corolla white ; lower lip blue ; pedicels 

 axillary, solitary. May. 1. lanceolate. Stem erect, a little 

 branched. A. 1ft. Eastern United States, 1855. (B. M. 4927.) 



C. violacea (violet), fl., corolla bright violet ; upper lip paler. 

 I. ovate-lanceolate, and remotely denticulated, h. Sin. to 1ft. 

 Arkansas, &c., 1871. 



COLLINSONIA (named in honour of Peter Collinson, 

 F.R.S., a well-known patron of science and correspondent 

 of Linnaeus ; he first introduced this and a host of other 

 plants to English gardens). OKD. Labiates. Strong- 

 scented, rather coarse-growing, hardy herbaceous plants 

 or shrubs. Flowers pedicellate, solitary ; pedicels opposite, 

 disposed in simple, but usually paniculately-branched, 

 racemes; corolla exserted, sub-campanulate. They grow 

 well in common garden soil, but prefer sandy peat, and a 

 moist situation. Propagated readily by dividing the roots, 

 in spring. 



C. anisata (Anise-scented).* Jl. pale yellow ; panicle dense. Sep- 

 tember. I. broad-ovate, a little toothed, roundly truncate at the 

 base, wrinkled, pubescent on the nerves beneath, and on the 

 stems, which are a little branched, h. 2ft. to 3ft. South United 

 States, 1806. This species requires protection from severe frosts. 

 (B. M. 1213.) 



C. canadensls (Canadian). Jl., corolla yellow, four times longer 

 than the calyx ; panicles elongated, loose, many-flowered. 

 August. I. broad-ovate, acuminate, rounded at the base, sub- 

 cordate, glabrous. Stems branched, glabrous, or a little downy. 

 h. 1ft. to 2ft. North America, 1734. This hardy perennial has 

 a peculiar scent, which is agreeable, but very strong. 



COLLOMIA, (from kolla, glue; in reference to the 

 seeds being enveloped in a mucilaginous substance, of a 

 most remarkable character). OBD. Polemoniacece. This 

 genus is allied to Gilia, and contains about a dozen species 

 of very pretty hardy annuals. Flowers disposed in dense 

 heads, propped by broad, ovate, quite entire bracts ; corolla 

 salver-shaped. Leaves alternate, the lower ones rarely 

 opposite, rarely pinnatifid. They are of very easy culture 

 in ordinary soil, and may be treated like Collinsia 

 (which see). 



C. Cavanillesli (CavaniUes 1 ). A synonym of C. grandiflora. 

 C. cocclnea (scarlet).* fl. deep red ; corolla more than twice 

 as long as the calyx. June to October. I. lanceolate linear ; 

 upper ones ovate-lanceolate, quite entire, or deeply two to four- 

 toothed at the apex. h. 1ft. to lift. Plant erect, branched, 

 beset with glandular down. Chili, 1831. SYN. C. Cavanillesii. 

 (B. R. 1622.) 



C. grandiflora (large-flowered).* Jl. of a very uncommon reddish- 

 yellow colour, disposed in hemispherical, pruinose, clammy 

 heads ; corolla ventricose. June to October. I. oblong-lanceo- 

 late, entire, shining, ciliated with glands. Plant erect, branched, 

 rather downy at top. h. lift, to 2ft. North-west America, 1826. 



C. heterophylla (various-leaved). Jl. purplish, few, in sessile 

 heads. Summer. I. alternate, petiolate, deeply and doubly 

 pinnatifid ; the segments lanceolate, rather acute, pubescent. 

 h. 1ft. to lift. North-west America, 1828. (B. M. 2895.) 



C. linearls (lined). /. yellowish-brown, in dense, sessile, ter- 

 minal heads, surrounded by an involucre of the uppermost leaves. 

 May to July. I. linear-lanceolate, lanceolate, or broadly lanceo- 

 late, the shorter ones almost ovate, alternate, patent, sessile, 

 waved, entire, h. 1ft. to lift. North-west America, 1828. An 

 erect, much-branched annual. (B. M. 2893.) 



COLOCASIA (from kolokasia, the Greek name for 

 the root of an Egyptian plant). GBD. Aroidece (Aracece). 

 A small genus of stove herbaceous plants, with a perennial 

 tuberous or creeping rhizome. Flowers unisexual ; the 

 females at the base of the spadix, separated from the males 

 by short ovoid neutral organs ; spathe with a convolute 

 persistent base; the lamina long-lanceolate, deciduous. 

 Scapes and leaves radical; the lamina often very large, 

 cordate or peltate, undivided. For culture, see Caladium. 



Colocasia continued. 



ANTIQUORUM. 

 /., spathe green, with the 



FIG. 501. COLOCA 

 C. antiquorum (ancient).* Ta 



lamina or blade 6in. or more long, much longer than the spadix. 

 I. ovate, more or less peltate and cordate, often above 1ft. long 

 and broad, h. 2ft. East Indies (cultivated in South Europe 

 and throughout the tropics), 1551. See Fig. 501. 



Fia. 502. COLOCASIA ESCULENTA. 



