September.} GREEN-HOUSE — HOLLAND BULBS. 279 
multiflbra, profuse flowering, white. 0. versicolor, striped. 
0. dippii, lilac, which blooms in summer. 0. caparina, 
yellow ; there is also a double yellow variety, though not 
pretty ; for a few others see last month. There should be 
three or four bulbs planted in a five-inch pot, giving very 
little water till they begin to grow. They will all keep in 
good pits, as well as in the green-house. (Soil No. 11.) 
Spardxis. We are enraptured with this beautiful genus 
of small bulbs, closely allied to Ixia, but more varied in 
colour. S. grandiflbra striata is striped with purple and 
white. S. versicolor, colours crimson, dark purple, and yel- 
low. S. tricolor, yellow, black, and scarlet. S. allida, 
large white, with black spots. S. coelestis, bluish purple. S. 
sulphibrea, yellow. S. purpurascens, purple. Treat as Oxdlis. 
(Soil No. 11.) 
Tritbnia, a genus of about twenty-five species. Few of 
them deserve culture in regard to their beauty. T. croedta, 
is in our collections as I. croedta, which is among the finest, 
and T. zantkospila has white flowers, curiously spotted with 
yellow. (Soil No. 11.) 
Watsbnia, a genus containing several species of showy 
flowers, several of which are in our collections under the 
genus Gladiolus, but the most of the species may be dis- 
tinguished from it by their flat shell-formed bulbs. W. iridi- 
fblia is the largest of the genus, and has flowers of a flesh 
colour. W. rosea is large growing, the flowers are pink, and 
on the stem in a pyramidal form. W. humilis is a pretty 
red-flowering species. W. ful<jida, once Antholyza fuhjens, 
has fine bright scarlet flowers. W. rubens is an esteemed 
red-flowering species, but scarce. (Soil No. 11.) 
These genera of bulbous plants are in general cultivation. 
There are, no doubt, some splendid species that have not 
come under our observation, and others which may be ob- 
tained from the Cape of Good Hope and China that are not 
known in any collection, all of which would be perfectly 
hardy in our Southern States. Bulbs generally require very 
little water until they begin to grow ; then supply mode- 
rately, and keep them near the light. Of the Holland or 
Dutch bulbs, the Hyacinth is the favourite to bloom in the 
green-house. A few of the Tulip, Narcissus, Iris and Crocus, 
may, for variety, be also planted with any other that curiosity 
may dictate. When these are grown in pots, the soil should 
