EXT SI ACTS — FLO RICLLTUKE. 
42 [ 
pearance ol being sprinkled with green dew. Its flowers are white, and by no 
means shewy. We presume it requires the green-house, and may be easily 
multiplied by layers.— Bot. Reg. 
malv'acEj®. —The Mallow Tribe. 
Ma'lva umbell'ata, Umbel-flowered Mallow. This curious species is an in¬ 
habitant of Mexico, and although cultivated many years ago in the Royal 
Gardens at Madrid, it never found its way to our collections until introduced 
from its native country by Mr. Lambert, in 1826. It has hitherto been treated 
as a hot house plant, for it is apt to suffer from the damp of a green-house in 
winter, otherwise it appears to endure a considerable degree of cold. It is rather 
a eoarse-looking plant, but its many elegant scarlet blossoms compensate for its 
less graceful habit.— Bot. Reg. 
scrophular'ine;. —The Figwort Tribe. 
Calceolaria crenatifloiia, Crenate-flowered Slipperwort. There is no 
species of this beautiful genus which forms so striking an object in the green¬ 
house as this. How far it will bear cultivation in the open air has not been 
ascertained. The flowers are a very bright yellow, sprinkled with orange-brown 
spots. 
car yopiiyllee. —The Chick weed Tribe. 
Agroste'mma pyren'aica, Pyrenean Rose-Campion, a small and pretty 
perennial, extremely local in its native country, being limited to one spot on the 
western Pyrenees. It is hardy, has flowers of a very pale purple, is increased by 
seeds or by slips, and is admirably suited for rock work. The better mode in 
winter is to keep the plants in pots, under the protection of a pit or frame. 
They should be planted in a mixture of sandy loam and peat, and in small-sized 
pots, as they are apt to suffer from damp,— Sw. FI. Gard. 
trop.eole.e. —The Nasturtium Tribe. 
Tropeolum Majus atrosanguineum, Dark-red Indian Cress, an annual, 
with very dark-red flowers, and of a rich velvet hue. Perhaps of all plants cul¬ 
tivated for a long series of years, the common Nasturtium is the most striking 
example that can be adduced of the power possessed, by certain species, of resist¬ 
ing the influences of soil and climate, and of preserving their characters un¬ 
changed, even to the colour of their flowers, the present is almost the only varia¬ 
tion. Its large dark blossoms of a velvet hue, render it a most desirable acquisi¬ 
tion to the flower garden. It is usually more dwarf than the common kind, and 
like that species will thrive in almost any soil.— Sweet’s FI. Gard. 
General Management of Plants under Glass.— Continued from Page 
374.— Frame Plants require exactly the same treatment as green house plants, 
except that in winter they require no fire, but are protected from the frost by 
mats.— Stove Plants are such as are natives within the tropics, and therefore at 
certain seasons of the year require a great degree of heat and plenty of moisture. 
The house in which they are grown should be very closely glazed, so as to keep 
the temperature regular during winter, or cold windy nights. The temperature 
should never be allowed to fall below 60 degs. Fahr. in winter; in fine days, 
when it rises to 70 degs. a little air may be given ; but the house should be closed 
early in the afternoon. Formerly the pots of stove plants were plunged in tan, 
but this method is now entirely exploded, and a bed of gravel or sand is sub¬ 
stituted, which is much more conducive to the health of the plants, and greatly 
diminishes the expense. The houses may be heated with hot water, or with 
