COG 



[259] 



coc 



C. laurlfo'lia (Laurel-leaved). 20. White, 

 green. August. Caraccas. 1822. 



longifo'Iia (long - leaved). 30. White, 



green. West Indies. 1810. 



- microsta' chya (small-spiked). 16. White, 



green. West Indies. 1824. 



ntvea (white-teared). 20. White, green. 



Jamaica. 1818. 



obova'ta (reversed-egg-7eed). 50. White, 



green. South America. 1824. 



obtusifo'lia (blunt -leaved). 20. \Vhite, 



green. Carthagena. 1822. 



orbicula'ris (round- leaved). 15. White, 



green. South America. 1825. 



pube'scens (downy). White, green. West 



Indies. 1690. 



puncta'ta (dotted). 15. White, green. 



West Indies. 1733. 



tenuifo'lia (narrow-leaved). 30. White, 



green. Jamaica. 1820. 



twffera (Grape - bearing). 60. White, 



green. West Indies. 1690. 



CO'CCULUS. (From coccus, cochineal- 

 colour; in reference to the scarlet colour 

 of the fruit. Nat. ord., Menispermads 

 [Menispermaceae]. Linn., ZI-Di&cia, 6- 

 Hexandria). Stove evergreen climbers 

 from the East Indies. The Coceulus 

 indicus of the druggists' 'shops are the 

 berries of C. Plukenetii and subcrosus. 

 Cuttings of half-ripened small side shoots, 

 in sandy soil, under a glass ; peat and 

 loam, both fibry and sandy. Summer 

 temp., 60 to 80 ; winter, 50" to 55. 



C. cordifo'lius (heart -leaved). 20. White, 

 green. 1820. 



crfspus (curled). 20. White, green. 1822. 



inert mix (hoary). 10. White, green. 1820. 



laurifo'Uus (Laurel-leaved). 10. White, 



green. 1816. 



orbicula'tus (round- leaved}. 6. Green, 



yellow. 1790. 



palma'tus (hand-feaeetf). 10. White, green. 



1800. 



P/wfcene'ZM (Plukenet's). 10. Green, yel- 



low. 1790. 



rotundifo'lius (round-leaved). 20. White, 



green. 1820. 



subero'sm ( Cork-barked] . 20. White, green. 



1800. 



tomento'sus (woollv). 10. White, green. 



1819. 



mllo'sus (long-haired). 6. Green, yellow. 



1800. 



Coccus. Scale Insect. The species 

 of this family are most usually, but not 

 exclusively, found upon the tenants of 

 our greenhouses and hothouses. The 

 males are active, but the females usually 

 fixed to a part of the plant ; the former 

 have wings, and are so small as to re- 

 quire a magnifier to distinguish them 

 clearly : they then appear somewhat 

 like a gnat in form. The females are 



much larger, and in shape not unlike a 

 bed-bug, but with a scaly skin. "When 

 hatching they envelop themselves in a 

 woolly case. The eggs are oval, but no 

 larger than dots. Brushing the stems 

 and branches of trees and shrubs with a 

 hard scrubbing brush, will destroy many 

 of these vermin, and if spirit of turpen- 

 tine, with a painter's brush, is applied, 

 so as to visit every cranny of the bark, 

 the application is perfectly effectual. 

 Smaller and more delicate plants in pots, 

 may be placed under a sea-kale or other 

 cover, with a little of the spirit in a sau- 

 cer, and then submitted to a gentle heat; 

 the vapour of the turpentine will destroy 

 the insect in an hour or two. If the 

 first application fails, the second will 

 not fail. 



C. ado'nidum. Mealy Bug. If this 

 insect is attacked the moment the first is 

 seen the pest may be usually avoided. 

 Vines attacked by it should have every 

 branch and stem brushed over sedulously 

 with a hard brush, and then with a 

 painter's brush as thoroughly painted 

 over with this mixture : Soft soap, 2 

 Ibs. ; flowers of sulphur, 2 Ibs. ; tobacco, 

 1 Ib. ; and a wine-glass of spirit of tur- 

 pentine. Mix the sulphur, turpentine, 



and soap into a paste with warm water ; 

 boil the tobacco for an hour in a covered 

 saucepan in some more water, strain it, 

 mix it with the soapy mixture, and then 

 add enough water to make five gallons. 

 More tender plants can only have their 

 stems and leaves sponged with water at 

 a temperature of 115, frequently, and 

 so long as a single insect can be detected. 

 The Mealy Bug on pine-apples mny be 

 destroyed by shutting these up in a from 



