SCROPHULAREOUS PLANTS. 
199 
delight in sandy loam and peat; the young plants should be kept 
in the dormant season in small pots on a warm light shelf in the 
greenhouse, and early in spring should be shifted at once into 
large ones ; they grow away rapidly, and by June become filled 
with their immense flower-spikes. While growing they may be 
treated liberally with manure water, but at other times must be 
carefully guarded from excessive moisture, especially of a stagnant 
nature. 
The genus Manulea contains five or six species, far too good to 
be suffered to lie in obscurity; those I would particularly recom¬ 
mend • are rubra and tomentosa , dwarf-growing shrubs, and 
rhynchantha and violacea , evergreen herbaceous perennials, all 
of them ranking among greenhouse plants. The first-named 
species rises about two feet high, its bright red flowers are pro¬ 
duced in rather remote racemes, but sufficiently numerous to form 
an elegant object when well grown. M. tomentosa has a more 
decumbent habit, not attaining more than a foot in height; its 
flowers are similarly produced, but the spikes are more dense; 
the blossoms are yellow. Both these grow best in very sandy, 
well-drained peat, with rather limited pot-room; they should 
have a warm position in winter, and plenty of air and water in 
the growing season. 
Of the two herbaceous species, the first mentioned has yellow 
flowers, and those of the latter are violet; the soil for them 
should have an addition of one third loam, and in winter they 
should be kept rather dry. In general management they may be 
assimilated with Calceolarias. With respect to Castilleja , you 
have recently shown what a handsome object the old and almost 
forgotten C. lithospermoides may be made, and at least the same 
may be said for the closely-allied C. coccinea; nor is it mere 
fancy to suppose the yellow-flowering C. sessiliflora may be made 
to contribute almost equally to our summer’s display, it can only 
be requisite to point out omissions in these days of determined 
perseverance and enterprise to have them corrected. 
VlNDEX. 
