212 GREEN-HOUSE REPOTTING. [March. 



Burchellias, two species. B. capensis is a beautiful 

 dwarf evergreen shrub, with tubular orange-coloured flow- 

 ers, in large terminal clusters ; when well treated, grows 

 and flowers freely, and highly deserving of attention. B. 

 parviftora differs from the above in the flowers being 

 smaller and paler, and the foliage more pointed. (Soil 

 No. 10.) 



Cactus : for descriptions of, see hot-house in May. 



Calceolaria. This genus of giants has undergone a 

 complete revolution. Within these few years hundreds of 

 superb hybrid varieties have been brought to notice, many 

 of them truly splendid. With us the herbaceous kinds are 

 very delicate during summer; they are generally all cut off 

 by our intense heat, or severe droughts. The shrubby 

 varieties appear to withstand the vicissitudes of our climate 

 better, though, as yet, we confess we are not even alto- 

 gether successful in their summer culture. However, a 

 few of them have done well, and are C. angustifolia, bright 

 yellow, and in great profusion ; C. jupiter, brown and yel- 

 low; C. marjoridna superba, nearly scarlet; C. smithii, 

 red and yellow ; C. ignea, bright crimson ; C. meteor, dark 

 crimson; C. Vulcan, dark red; C. maculata, superbly 

 marked with red or crimson. There are many others of 

 very great merit of the shrubby kinds cultivated in Europe, 

 such as whites of different shades, dark crimsons, with 

 white capes, and others blending into almost every descrip- 

 tion of colour and character. Any quantity of new sorts 

 may be obtained by cross impregnation between any two 

 of very different colours : the seeds will ripen in July, when 

 they may be sown on light soil, and they will flower the 

 following season. Flowering plants require to be greatly 

 encouraged, and must be shaded during summer from the 

 violent noon-day sun. (Soil No. 10.) 



Calolhdmnus, four species. This genus is named in 

 allusion to the splendid appearance of the branches, cov- 

 ered with scarlet flowers of curious construction, which 

 come out of the old wood. All the species are of easy cul- 

 ture, and very like dwarf pines. C. quadriffida has the 

 largest flowers ; C. clavdta the most abundant. They are 

 all evergreens, and flower from April to November, and 

 are very desirable in a collection. (Soil No. 6.) 



Callicoma serratifolia, the only species, and remarkable 



