CAL 



[174] 



CAL 



dark brown spots appear on the leaves 

 and stems, and in a week's time the 

 disease spreads and the plants arc dead. 

 No cure is known. As soon as it ap- 

 pears on any plant remove it at once, 

 and throw it away, because the disease 

 is contagious, and soon spreads to the 

 healthy plants. Too much wet at the 

 root, or damp in the house, will accele- 

 rate the disease. 



Insects. The most destructive is the 

 green fly (aphis). Whenever it appears 

 fill the house with tobacco smoke. Eed 

 spider (ctcarm} will sometimes appear if 

 the house be kept hot and dry. Dust 

 the leaves with sulphur where it is ob- 

 served. 



Calceolarias for bedding-out should be 

 propagated in the autumn, and kept in 

 the cutting-pots through the winter. 

 Pot them singly in the spring, place 

 them in a cold frame, and gradually 

 harden them off by May. Then plant 

 them out in a rich light soil, where they 

 are to flower. 



CALDA'SIA. (Named after G. Caldas, 

 a naturalist at Bogota. Nat. ord., Phlox- 

 worts [Polemoniaceae] Stove annual : 

 seeds in hotbed in spring; sandy peat. 

 Temp., 50 to 70. 



C. heterophy'lla (variable-leaved). 2. Blue. 

 July. New Spain. 1813. 



CALBCLU'VIA. Named after A. Cald- 

 cleugh, F.R.S., who collected botanical 

 specimens in Chili. Nat. ord., Cunoniads 

 [Cunoniaceae], Linn., 8-Octandria, 2- 

 digynia. Allied to Cunonia). The prin- 

 cipal character of this and other Cunoni- 

 ads, is the leaves growing opposite with 

 stipules between the leaf stalks. The 

 panicles of little white flowers have a 

 pretty appearance. Greenhouse ever- 

 green shrubs , cuttings of half-ripened 

 wood in sand, under glass, and a little 

 bottom heat ; peat and loam. Winter 

 temp., 40 to 45. 



C. panicul'ata (panicled-^owcred). White. 

 June. Australia. 1831. 



CA'LEA. (From kalos, beautiful; re- 

 ferring to the flowers. Nat. ord., Com- 

 posites [Astcracese]. Linn., \$-Syngenesia, 

 l-aqualis. Allied to Galinsogia). Stove 

 evergreen shrubs ; seed in March ; side- 

 shoots strike freely at any time, in sand, 

 and placed in bottom heat, under a glass, 



Summer temp., 60 to 75 ; winter 55 

 to 60. 



C. cordlfoflia (heart-leaved). 2. Jamaica. 1822. 

 Jamaica? mis (Jamaica). 3. Purple. June. 

 West Indies. 1739. 



pinnati'fida (leafleted). Yellow. June. 



Brazil. 1816. 



solidaqi'nea (Solidago-like). 4. Caraccas. 



1817. 



urticcefo'lia (Nettle-leaved). 2. Yellow 



July. Vera Cruz. 1740. 



CALEA'CTE. See Ca'lea. 



CALECTA'SIA. (From kalos, beautiful, 

 and stachys, a spike. Calectasias are 

 branched herbs, with dry, permanent, 

 starry flowers, of a bright violet. Nat. 

 ord., Rushes, [ Juncacea?]. Linn., 6-Hex- 

 andria, \-monogynia. Allied to Baxte- 

 ria). Unless we had it on authority we 

 should not take this for a rush, but a lily- 

 wort. Greenhouse herbaceous perennial ; 

 divisions ; peat and loam, or common 

 soil. Winter temp., 35 to 45. 

 C. cya'nea (blue-flowered). Blue. June. Aus- 

 tralia. 1840. 



CALE'NDULA. Marigold. (From ca- 

 lendce, the first day of the month ; its 

 flowers produced almost all the year 

 round." Nat. ord., a section of Composites 

 [Asteracea3], Linn., \Q-Syngenesia, 4- 

 necessaria}. Hardy annuals may be sown 

 in the border in April ; tenderer ones in a 

 slight hotbed, and transplanted in May. 

 Greenhouse varieties by cuttings ; sandy 

 loam ; and loam and peat for the green- 

 house ones. See MARIGOLD. 



GREENHOUSE EVERGREENS. 

 C. arbore'scens (tree-like). 3. Yellow. De- 

 cember. Cape of Good Hope. 1774. 



chrysanthemifo'lia (Chrysanthemum -leav- 



ed). 2. Yellow. April. Cape of Good 

 Hope. 1790. 



denta'ta (toothed) 1. Yellow. May. 



Cape of Good Hope. 1790. 



denticula'ta (small-toothed). \\, Yellow. 



December. Barbary. 1821. 

 frutico'sa (shrubby). 2. Yellow. June. 

 Cape of Good Hope. 1752. 



murica'ta (prickled). 2. Yellow. Decem- 



ber. Cape of Good Hope. 



oppositifo'lia (opposite-leaved). 2. Yellow. 



August. Cape of Good Hope. 1774. 



suffiutico'sa (sub-shrubby). 1. Yellow. 



December. Cape of Good Hope. 1823. 



tra'gus (Goat-rwsA). 2. White purple. May. 



Cape of Good Hope. 1774. 

 fla'ccida (feeble). 2. Orange. May. Cape 

 of Good Hope. 1774. 



visco'sa (clammy). 2. Orange. August. 



Cape of Good Hope. 1790. 



HARDY ANNUALS. 



C. arvdnsis (corn-field). 2. Yellow. June 

 Europe. 1597. 



