CLU 



[257] 



CLU 



with charcoal. Summer temp., 60 to 



80 ; winter, 50 to 60. 



C. ro'sea (rosy). . White, pink. Brazil. 



CLUB-MOSS. Lycopo dium. 



CLUB-ROOT. See Amburtj. 



CLUMPS, when close, are sometimes 

 called Thickets, and when open, Groups 

 of Trees. They differ only in extent 

 from a wood, if they are close, or from a 

 grove, if they are open ; they are small 

 woods, and small groves, governed hy 

 the same principles as the larger, after 

 allowances made for their dimensions. 

 But besides the properties they may have 

 in common with woods, or with groves, 

 they have others peculiar to themselves. 

 They are either independent or relative ; 

 when independent, their beauty as single 

 objects is solely to be attended to ; when 

 relative, the beauty of the individuals 

 must be sacrificed to the effect of the 

 whole, which is the greater considera- 

 tion. The least clump that can be, is of 

 two trees ; and the best effect they can 

 have, is that their heads united should 

 appear one large tree ; two, therefore, of 

 different species, or seven or eight of 

 such shapes as do not easily join, can 

 hardly be a beautiful group, especially 

 if it have a tendency to a circular form. 



A peculiarity of clumps is the facility 

 with which they admit a mixture of trees 

 and of shrubs, of wood and of grove ; in 

 short, of every species of plantation. 

 None are more beautiful than those 

 which are so composed. Such composi- 

 tions are, however, more proper in com- 

 pact than in straggling clumps ; they 

 are most agreeable when they form one 

 mass. If the transitions from very lofty 

 to very humble growths, from thicket to 

 open plantations, be frequent and sudden, 

 the disorder is more suited to rude than 

 to elegant scenes. 



The occasions on which independent 

 clumps may be applied are many. They 

 are often desirable as beautiful objects 

 in themselves ; they are sometimes ne- 

 cessary to break an extent of lawn, or a 

 continued line, whether of ground or of 

 plantation ; but on all occasions, a jeal- 

 ousy of art constantly attends them, 

 which irregularity in their figure will 

 not always alone remove. Though ele- 

 vations show them to advantage, yet a 

 hillock evidently thrown up on purpose 



to be crowned with a clump is artificial 

 to a degree of disgust ; some of the trees 

 should therefore be planted on the sides 

 to take off that appearance. The same 

 expedient may be applied to clumps 

 placed on the brow of a hill, to interrupt 

 its sameness ; they will have less osten- 

 tation of design if they are in part carried 

 down either declivity. 



A line of clumps, if the intervals be 

 closed by others beyond them, has the 

 appearance of a wood, or of a grove ; and 

 in one respect the semblance has an ad- 

 vantage over the reality in different 

 points of view; the relations between 

 the clumps are changed, and a variety of 

 forms is produced, which no continued 

 wood or grove, however broken, can fur- 

 nish. These forms cannot all be equally 

 agreeable, and too anxious a solicitude 

 to make them everywhere pleasing may 

 perhaps prevent their being ever beauti- 

 ful. 



The effect must often be left to chance, 

 but it should be studiously consulted 

 from a few principal points of view ; and 

 it is easy to make any recess, any promi- 

 nence, any figure in the outline, by 

 clumps thus advancing before, or retiring 

 behind one another. Watheley. 



CLU'SIA. Balsam Tree. (Named after 

 C. de VEcluse, a French botanist. Nat. 

 ord., Guttifers [Clusiacea?]. Linn., 23- 

 Polygamia, 1-Moncecia). Stove ever- 

 green trees. Cuttings of half-ripe shoots, 

 in sand, under a glass, and with good 

 bottom heat. Rich sandy loam. Sum- 

 mer temp., 60 to 85 ; winter, 50 to 55. 

 C. a'lba (white-flowered}. 30. White. South 



America. 1752. 



fla'va ( yellow -flowered}. 30. Yellow. 

 Jamaica. 1759. 



rot 'sea (rose-coloured}. 30. Red. July. Ca- 



rolina. 1692. 



tetra'ndria (four-stamened). White. South 



America. 1820. 



veno'sa (veiny- leaved}. White. South 



America. 1733. 



CLUY'TIA. (Named after Cluyt, a 

 professor of botany at Ley den. Nat. 

 ord. , Euphorbiads [Euphorbiaceae] . Linn. , 

 22-Dicecia, Z-Triandria). Greenhouse 

 evergreen shrubs, except where other- 

 wise specified. Cuttings of small side 

 shoots ; but if not to be got, points of 

 shoots before they become hard, in sand, 

 over a layer of sandy peat, and covered 

 with a bell-glass ; sandy loam and fibry 



