MarcLI green-house — REPOTTma. 221 



is an excellent evergreen, but has no beauty in its flower. 

 The foliage, when bruised, has a camphorated odor. (Soil 

 No. 10.) 



CistuSj or Kock rose. There are above thirty species, 

 principally natives of Europe, consequently hardy there, and 

 form a great ornament to their gardens, being very abundant 

 and various in flower; but with us they will not stand the 

 rigor of winter. We have no doubt, however, but, through 

 time, some kinds may be grown that will withstand the great- 

 est cold of the Middle States ; they are low shrubby plants, 

 of easy cultivation. C. ladaniferusj C. salignus, C. populifo- 

 liusj C. undulatu^j and C. /orniGsuSj are perhaps the best; 

 the flowers are of short duration, frequently only for one 

 day ; but the quantity makes up this deficiency, being con- 

 stantly in flower in May and June, and sometimes flower 

 again in autumn. C. creticti^ is most productive of the gum 

 laudanum, which is secreted about its leaves and branches. 

 The flowers are generally five-petaled, and some of them 

 large and showy; centre full of stamens. (Soil No. 3.) 



Citrus. This genus contains the most grand and noble of 

 fruit-bearing trees ; Loudon says, The golden apples of the 

 heathens, and forbidden fruit of the Jews, are supposed to 

 allude to this family .^^ They are all handsome evergreen 

 shrubs or trees, bearing highly odoriferous flowers and beau- 

 tiful golden fruit. In cultivation, the orange fruit is dry 

 and more insipid than in the tropics, but the lemon is far 

 superior in its quality. The varieties of orange are exten- 

 sive, nearly eighty kinds being cultivated in Italy ; but, with 

 us, the sweet, sour, and rough-skinned are the principal 

 sorts, and more recently we cultivate the mandarin, Otahei- 

 tan, and other beautiful dwarf Chinese varieties ; also, the 

 striped-leaved varieties of Bergamotte. The lemon are 

 nearly as numerous, though not so apparently distinct; it is 

 very valuable as a cultivated fruit, and should be in every 

 green-house or conservatory. The lime and the shaddock 

 should not be overlooked, as they are very ornamental, espe- 

 cially the latter when it arrives at a fruit-bearing state. 

 (Soil No. 18, when young plants, and when fruit-bearing 

 keep from it the portion of sand.) 



Clematis^ Virgin's Bower. There are only six of these 

 belonging to the green -house, all climbing plants, C. avis- 

 tdta and C. hracliidta are the best; flowers in racemose 



19* 



