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HERBACEOUS PERENNIALS. 

 C. Caripe'nsis (Caripe). 2. Blue. June. Trinidad 

 1826. Stove. 



caiiestis (sky-5/we). Blue. June. 1813. Stove. 

 a'lba (white-lowered). 3. White. June. 



ere'cta (upright), l. Blue. August. Virginia. 



1732. Hardy. 



fasticula'ta (fascicled). 1. Blue. July. Lima. 



1817. Hardy. 



gra'cilis (slender). 1. Blue. July. Lima. 1830. 



Greenhouse. 



htrte'lla (hairyish). 1, Blue. June. N. Amer. 



1820. Hardy. 



tubero'sa (tuberous). 1, Blue. June. Mexico. 



1732. Stove. 



HARDY EVERGREEN TRAILERS. 

 C. Carolinia'na (Carolina). 2. Purple, blue. 

 America. 1732. 



Virgi'nica (Virginian). 1. Blue. June. Vir- 



ginia. 1779- 



GREENHOUSE EVERGREEN TRAILERS, 

 C, Africa'na (African). 1. Blue. July. Cape of 

 Good Hope. 1759. 



angustifo'lia (narrow-leaved). 1. Blue. June. 



Carolina. 1827. Half-hardy. 



cya'nea (bright blue). 1. Blue. July. N. 



Holland. 1820. 



STOVE EVERGREEN TRAILERS. 

 C, Bengale'nsis (Bengal). 3. Blue. June. Bengal. 

 1794. 



Cayenne'nsis (Cayenne). 1. Blue. June. 



Guiana. 1823. 



dqfi'ciens (deficient). 6. Blue, August. Brazil. 



1823. 



dianthifo'lia (pink-leaved). 1. Blue. July. 



J816. Twiner. 



du'bia (doubtful). 1. Blue. June. 1818. 



longicau'lis (long-stalked). 3. Blue. August. 



Caraccas. 1806. 



mo'llis (soft). 2. Blue; August. Caraccas. 1804, 



obli' qua (twisted-leaved). 1. Blue. June. 1820. 



pa'llida (pale). 1. Blue. June. Trinidad. 1820. 



parviflo'ra (small-flowered). 1. Blue. June. 



1824. 



poty'gama (various-flowered). Blue. June. 



China. 1818. 



COMMERSO'NIA, See BARRINGTO'NIA. 



COMOCLA'DIA. Maiden Plum. (From 

 home, hair, and klados^ a branch; in 

 reference to the dense, silky covering on 

 the young branches. Nat ord., Anacards 

 or Terebinths [Anacardiacese]. Linn., 

 S-Triandria \-Monogynia. Allied to Pis- 

 tacia.) 



Stove evergreen trees'. For cultivation, see BAB- 

 HINGTO'NIA. 



C. denta'ta (tooth-leaved). SO. Bed. July. W. 

 Ind. 1790. 



Uicifo'lia (holly-leaved). 15, Red. Caribbee 



Isles. 1789. 



tntegrifo'lia (whole-leaved). 16. Red. Ja- 



maica. 17/8. 



COMPARE' TTIA. (Named after Com- 

 paretti, an Italian botanist. Nat. ord., 

 Orchids [Orchidacege]. Linn., 20-Gy- 

 nandria 1-Monandria. Allied to Inopsis 

 and Trichocentron.) 



Stove orchids. Divisions and offsets ; fibry 

 peat, sphagnum, and broken potsherds. Plants 



raised above the surface of the pot, or fastened 

 in a very shallow, well-drained basket. Summer 

 temp., 60 to 90; winter, 50 to 55. 

 C. cocci'nea (scarlet). 1. Scarlet, August. Brazil. 



1838. 

 falca'ta (sickle-shaped), A. Rose. Mav. 



Mexico. 1836. 

 ro'sea (rosy). . Rose, May. Spanish Main. 



1843. 



COMPOST is a mixture of manures, or 

 of earths and manures, in such propor- 

 tions and of such qualities as are consi- 

 dered particularly applicable to the plant 

 or crops to which the composition is to 

 be applied. If leaves are required to be 

 largely developed, the compost can be 

 scarcely too rich ; for the greater the 

 quantity of food imbibed by the roots, 

 the greater will be the surface of leaves 

 requisite for its elaboration. But if 

 flowers and fruit, as well as leaves-, are 

 desired, the composts, if excessively rich, 

 will cause these to diminish in number 

 and size, the flower buds passing into leaf- 

 buds, for the reason already alleged. 



Composts must also duly regulate the 

 amount of moisture supplied to the roots, 

 totally independent of drainage, as com- 

 post retains to them moisture by its che- 

 mical and capillary powers. The richer 

 in decomposing animal and vegetable 

 matter, and the looser its texture, the 

 better does a compost retain moisture. 

 And this power is diminished in propor- 

 tion as siliceous sand, or calcareous 

 (chalky) matters preponderate. 



Gardeners prepare their composts 

 from strong, tenacious loam, half-rotten 

 leaf-mould, heath-soil, horse-manure, 

 cow-manure, charcoal and wood-ashes, 

 bone-dust, sharp sand, burnt turf, and 

 moss, well-scalded ; and, from these ma- 

 terials, there is no doubt that a compost 

 could be prepared, embracing any de- 

 sired degree of fertility.. See MANURES 

 and POTTING. 



COMPOST-GROUND. This should be an 

 enclosure concealed from sight, but in 

 the vicinity of the hotbeds, hothouses, 

 and other similar structures, for the con- 

 venience of moving the pots to it in the 

 potting season, conveyance of manures, 

 &c. All the earths and manures should 

 be under a shed ; and the dungs, being 

 liable to lose much of their fertile com- 

 ponents in drainage, should be in water- 

 tight tanks ; and if these are covered, all 

 the better. 



COMPTO'NIA. (Named after Bishop 

 Comptou. Nat. ord., Galeworts [Myrica- 

 cea?.] Linn., 21-Monoecia 3-Triandria.) 



