CORR^A. 



CORTDALIS. 



ing, all the kinds are propagated by 

 layers or cuttings of the old ■wood, 

 both of which strike root freely. C. 

 florida is generally grown in peat, in 

 a sheltered situation, and thrives best 

 when its roots are kept in the shade ; 

 but unless its foliage is fully exposed 

 to the influence of the sun, it will 

 not flower. Travellers in North 

 America describe what are called 

 there the Dogwoods, as vast forests 

 of this tree, about twelve feet high, 

 with their branches so interlaced as 

 to prevent a gleam of sunshine from 

 reaching their roots. 



Coroni'lla, — Lerjumindsce . — 

 Ornamental shrubs, hardy and half- 

 hardy, with bright yellow flowers, 

 and pinnate leaves. C. E'merus, the 

 Scorpion Senna, a native of the South 

 of Europe, and the commonest and 

 hardiest species, has the flower-buds 

 red, and the expanded flowers of a 

 bright yellow. It will grow in any 

 soil or situation, and, as it will bear 

 clipping without much injury, it may 

 be used as a hedge-plant. It will 

 thrive in any garden-soil, and it is 

 propagated by cuttings of the ripe 

 wood or by layers . C. Gla uca, which 

 is a native of France, has bluish-green 

 leaves and yellow flowers, which are 

 fragrant during the day, but lose 

 their scent at night. It flowers early 

 and freely, and though generally 

 kept in the greenhouse, it is very 

 nearly hardy. The soil should be a 

 sandy loam, mixed with a foiu-th 

 part of vegetable mould, or rotten 

 manure ; and the pots should be well 

 Grained. It is propagated by seeds, 

 which it ripens in abundance, or by 

 cuttings in sand, under a bell-glass. 



Corr^^a. — Rutacece. — Dwarf 

 greenhouse shrubs, with leathery 

 leaves, which are generally either 

 brown or white on the under surface. 

 The flowers are tubular, but those of 

 C. alba, and C. rilfa, which are white, 

 are much less so than the others. 



Several new species, or hybrids, have 

 been iatroduccd since 1535, all of 

 which appear most nearly allied to 

 C. speciosa. All the species and 

 varieties flower abundantly, pro- 

 ducing in a greenhouse a constant 

 succession of flowers from November 

 to June . They require an airy, but 

 a somewhat shaded situation. The 

 pots should be well drained, and 

 the soil should be heath-mould, 

 mixed with a little loam, 



CoRYA'^'THES. — OrcMdacccs. — 

 Helmet - flower. — C. mdcrantha 

 Lindl. {Gonrjora mdcrantha Hook.) 

 has a most singular red and yellow 

 flower, part of which resembles a 

 skeleton's head, with the vertebne of 

 the neck, and part two folded bat's 

 wings. The plant is grown in a pot 

 in sandy peat, mixed with lime rub- 

 bish ; and the soil is raised above the 

 level of the pot, as the flower-stalk 

 hangs down from the root. It is a 

 native of the West Indies ; and, like 

 most of the other tropical Orchi- 

 dacece, it requires abundance of heat 

 and moisture to throw it into flower. 

 A new species of this genus, with 

 still more singular flowers than those 

 of C. macrantha, was introduced in 

 1842. It is called C. Feildhigii, 

 and is the largest orchideous flower 

 that has ever yet been found. 



Coryda'lis. — Fuinaridcece."Th.e 

 plants composing this genus were 

 formerly considered to belong to 

 Fumdria, the Fumitory, but they 

 have been separated on account of the 

 different conformation of the capsule. 

 C. [/laiica, which is the most common 

 species, is an annual from North 

 America, which may be sown at 

 almost any season, and in any soU. 

 and sitxiation. C. claviculdta is a 

 British climber, also an annual, and 

 pretty from the abundance of its 

 smaU white flowers. It is of very 

 rapid growth, and it is useful ia 

 covering a treUis, kc, from the 



