CAG 



C. le'nuis (slender). Pale yellow. May. Mexico. 

 1830. 



tetraca'ntha (four-spined). Rose. July. Mexico. 



turbina'ta (top-shaped). Striped. July. Mexico. 



1838. 



ve'tula (oldish). Light scarlet. 1835. 



vivi'para (viviparous). Red. Louisiana. 1811. 



Melo-ca'ctus (Turk's-Cap-Cactus). 

 C. amce'nus (lovely). Light scarlet. 1835. 



commu'nis (common). Red. July. W.Ind. 1789. 

 vi'ridis (green). 1836. 



depre'ssus (depressed). Scarlet. Pernambuco. 



macra'ntha (large-spined). White, red. S. 



Amer. 1820. 



meonaca'nlhus (oblong-spiraed). Jamaica. 1835. 



placentifo'rmis (placenta-shaped). Red. Brazil. 



polyuca'ntha (many-spined). Brazil. 



pyramida'lis (pyramidal). Red. Curacoa. 1824. 

 spi'nis-ru'bris (red-spined). 



There are many more species in all the above 

 subdivisions of Cactus mentioned in botanical 

 works ; but so little is known about them that 

 is certain that we have omitted them. We think, 

 also, that when this very numerous genus is better 

 known, many now considered as species will be 

 found to be a single species at different periods 

 of its growth. 



Culture. It is possible that under the 

 different names of Epiphy'llum, Mamil- 

 la'ria, and Meloca'ctus we may see occa- 

 sion to detail a few extra points of culture ; 

 but we may observe here, that there are 

 features of cultivation common to them 

 all, namely, a high temperature and a 

 somewhat moist atmosphere when grow- 

 ing in summer ; a dry atmosphere when 

 ripening their growth ; and a dry atmo- 

 sphere dryness comparatively at the 

 roots and a low temperature, when in 

 a, state of rest. Though a temperature 

 of from 80 to 95 will not be too high 

 in the one case, one not below 40 will 

 suffice in the other. 



Ecliinocactus culture. This group is 

 propagated, at times, by seed, which 

 should be sown as soon as ripe in shallow 

 pans, and plunged in a hotbed ; by offsets, 

 which should be well-dried at the base 

 before planting, and then plunged into 

 bottom-heat. This method of propa- 

 gating should only be resorted to in 

 spring or summer ; all changing of the 

 soil, or re-potting, should also be done 

 At that time, as, if done in winter, stag- 

 nation and decay are apt to ensue. Good 

 drainage constitutes an essential feature. 

 Soil, equal portions of sandy loam and 

 peat, and half parts of clear river or 

 silver-sand, leaf-mould, or dried, old cow- 

 dung, and brick-rubbish, consisting, how- 

 ever, more of the brick broken than the 

 lime. In addition to this compost, when 

 potting offsets without roots, a little 

 silver-sand may be advantageously placed 



round them, and firmness be secured by 

 placing some slight pins of wood round 

 their base. In re-potting, it is well to 

 use a thick, soft glove, to save alike 

 hands and spines; and then it is ad- 

 visable to remove most of the soil, as 

 well as drainage, and any faulty roots, 

 holding the plant well up, and shaking 

 the compost with the other hand care- 

 fully among the roots. Water at all 

 times must be given with care; but, 

 when growing in fine weather in summer, 

 they will require a considerable supply 

 both at the roots and as vapour in the 

 atmosphere, with a high temperature. 

 As soon as the spines change colour, 

 moisture must be gradually withheld, 

 the temperature lowered, and more air 

 given. Summer temp., 00 to 90 ; win- 

 ter, 40 to 50. 



Insects. The Red Spider seizes them 

 at times ; and he must be started imme- 

 diately, either by covering the surface of 

 the pot, and then placing your hand over 

 it, turning it topsy-turvy, and drawing 

 the plant rapidly several times through 

 water at 120 ; or by dusting the plants 

 with flowers of sulphur; or, as alike 

 prevention and cure, fuming the house 

 by placing sulphur on the hot-water pipes, 

 or on a hot-water plate kept on purpose. 

 The most remarkable are the E. Stancsii 

 and Viznaga, the monsters for size lately 

 introduced to Kew Gardens. 



CJELESTI'NA. (From calcslis, celestial ; 

 in reference to its sky-blue colour. Nat. 

 ord., Composites [Asteracese]. Linn., 19- 

 Synqenesia \-JEqualis. Allied to Agera- 

 tum.) 



Seed and cuttings take freely. Greenhouse 

 and cold pit in winter, and the flower-border 

 in summer. They grow most compactly in loamy 

 soil. 



C. ageratoi'des (ageratum-likc). 1. Blue. Au- 

 gust. New Spain. 



c<eru ! leu (sky-blue). 1. Blue. July. N 



Amer. 1732. 



micru'ntha (small-flowered). 14. Blue. July. 



8. Amer. 1800. 



C^ENO'PTERIS. (From ftainos, new, and 

 j a fern. Nat. ord., Ferns [Polypo- 



Divisions, like most Ferns; peat and loam. 

 Summer temp., 60 to /0; winter, 38 to 50. 



GREENHOUSE EVERGREENS. 

 C. appendicula'ta (appendaged). f . Brown. 



July. N. Holland. 1822. 

 odonti'tcs (odontites). ?. Brown. July. N. 



Holland. 1822. 



STOVE HERBACEOUS. 



C. myriophy'lla (myriad-leaved). 1. Brown 

 .December. W. Ind. 



