eptotes_).--Dwarf species with white flowers, having rose
labellums. Intermediate house.

~Thunia.~--A section of Phaius with erect, terete stems and deciduous
leaves. Grow them in a warm and moist house, but keep them cool and dry
during the resting period.

~Trichocentrum.~--Dwarf, evergreen South American Orchids. Grow in pans
suspended in a shady part of the intermediate house.

~Trichopilia.~--An ornamental, epiphytal genus, including Pilumna, the
white, fragrant _T. fragrans_, and its variety _nobilis_, representing
that section. _T. suavis_ is one of the showiest species. All are worthy
of a place in collections. Intermediate house.

~Trichosma.~--_Trichosma suavis_ is a pretty, cool-house species, with
white, fragrant flowers.

~Trigonidium.~--There are several curious species of Trigonidium, with the
sepals usually developed and arranged differently to Orchids generally.
Intermediate house.

~Vanda.~--The genus is one of the largest and most interesting, and, like
the other large genera, it may be divided into several sections. The
largest-growing and best-known species are _V. tricolor_ and _V.
suavis_, which have white or yellowish flowers, spotted with purple, and
without any distinguishing botanical feature between them. _V.
coerulea_ is one of the finest blue Orchids; _V. Sanderiana_ one of
the handsomest; _V. insignis_, _V. lamellata_, _V. Denisoniana_, _V.
limbata_, and _V. Bensonii_ are all desirable kinds. _V. Kimballiana_,
_V. Amesiana_, and _V. Watsonii_ form a distinct section, with fleshy
leaves and erect spikes of pretty, white flowers, marked with rose in
the two first, and requiring to be grown, where possible, in baskets
suspended in the intermediate house. _V. teres_, _V. Hookeriana_, and
their hybrid _V. Miss Joaquim_, have erect stems, bearing terete leaves,
and fine, rose-coloured flowers. _V. alpina_, _V. cristata_, and _V.
pumila_ are pretty, dwarf species. All are generally grown together in
the warm or East Indian house, but it is an open question whether the
keeping of these plants and the Aerides and Saccolabiums continuously in
the same house is not the cause of the unsatisfactory condition of many
of them in gardens. Each section should be watched, and, when growth is
completed, a change should be given to a cool, intermediate house for a
couple of months. Aerides, Vandas, and Saccolabiums suffer most from
being kept too hot and close in winter. After spring opens the amount o