Mai/.'] HOT-HOUSE — OF REPOTTING, ETC. 161 
drainage to the pots, and, when the plants are growing, give 
a liberal stipply of water. (Soil No. 17.) 
Heliotrbpiums, about twelve species, of little merit, except 
H. peruvianum, H. intermedia, H. valitariana, pale bluish 
white ; H. ficur de Liege, represented as yellow, but is only 
a very dull white, with a faint yellow eye ; these are all 
very agreeably scented, especially the two former, which are 
universal favourites. (Soil No. 3.) 
Hibiscus. — This genus affords many fine species and varie- 
ties of plants for the hot-house, besides others for every de- 
partment of the garden. The most popular in our collec- 
tions of the hot-house is H. rbsa sinensis, with its varieties, 
which are magnificent, and flower profusely from February 
to September. The single or original species is also beauti- 
ful ; the varieties are H. rbsa sinensis riibro plenus, double 
red; H. r. s. cornea plenus, double salmon; H. r. s. varie- 
gatus, double striped; striped on the back of the outside 
petals ; H. r. s. flava plenus, or earned, double buff; H. r. 
s. liitea plenus, double yellow, or rather sulphur. The plants 
grow freely, and produce their flowers three or four inches 
in diameter, from the young wood ; the leaves are ovate, 
acuminate, smooth, entire at the base, and coarsely teethed 
at the end. All the varieties are of the same character, and 
highly deserving of a situation in every collection. There 
is said to be a double white variety, which we doubt. If. 
mvtabilis fibre pleno is a splendid plant, of strong growth, 
and will, when well established, flower abundantly, if the 
wood of last year is cut to within a few eyes of the wood of 
the previous year; the flowers are produced on the young 
wood, and come out a pale colour, and change to bright red, 
and about the size of a garden Provins rose ; leaves downy, 
cordate, angular, five-lobed, acuminate, and slightly in- 
dented. H. lillii-fibrus is a new highly esteemed species; 
the flowers are various in colour, being pink, blush, red, and 
purple. The leaves vary in character, but are generally 
cordate, crenate, acuminate ; the petioles are brown, and the 
whole slightly hirsute ; is deciduous, and requires to be kept 
in the warmest part of the house. (Soil No. 9.) 
Hoyas, wax-plant, twelve species. All of them are climb- 
ing succulents, requiring plenty of heat and little water. H. 
carnbsa is a fine flowering species, and known in our collec- 
tions as the wax-plant; the leaves are green and fleshy; 
14* 
