We find the best material to grow them in is rough fibrous peat, with good drainage, which should be thus applied:—fill the pots three-parts full of broken crocks and charcoal mixed together; add a few lumps of charcoal to the peat, which helps to keep it open, moreover, the roots of the plant like to cling to it; let the plant be elevated on this material three inches above the pot rim, from which the roots will be delighted to run down, and can either go inside or work over the material, which should always be kept sweet and not allowed to stagnate. The plant is easy of cultivation if its requirements are attended to. It must be kept moist during the growing season, not, however, continually soaked with water, but just sufficient being given to keep the plant in vigorous state of growth. When the growth is completed, give just enough water to keep the pseudobulbs and foliage in a good plump state. [Illustration: PL. 138. LÆLIA ALBIDA.] LÆLIA ALBIDA. [Plate 138.] Native of Mexico. Epiphytal. _Pseudobulbs_ ovate, clustered, about the size of pigeon’s eggs, becoming furrowed in age, marked about the middle by a transverse ring or scar, diphyllous. _Leaves_ narrow lanceolate acute, somewhat leathery, of a deep green colour. _Scape_ terminal, slender, two or three times as long as the leaves, bearing a raceme of five to eight flowers, and furnished with rigid sessile ovate bracts. _Flowers_ white, powerfully sweet-scented, with an odour resembling that of the glandular leaves of the Chinese Primrose, but having a honey-like sweetness superadded, rather small as compared with other species of the genus, being a little over two inches in expanse in each direction; _sepals_ oblong-lanceolate acute, spreading, plane, mucronulate, ivory white; _petals_ oblong ovate, subundulate, rather shorter than the sepals, recurved at the tip, mucronulate, also of an ivory white; _lip_ obovate, three-lobed, the lateral lobes obtuse, of a rosy hue externally, inside veined with red-pink, erect, that is folded up against the column, the middle lobe roundish-oblong obtuse, obscurely apiculate, recurved, slightly tinted with rose; disk with three yellow crests running out in the front lobe into a pale red bar or central line, with rosy veins on each side which give a faint rosy tint to the surface, the two lateral crests yellow spotted with dark reddish-purple. _Column_ elongate, glabrous, crimson-purple on the inner face. Lælia albida, _Bateman_, in _Botanical Register_, 1839, misc. 4; _Lindley_, _Botanical Register_, 1839. t. 54; _Hooker_, _Botanical Magazine_, t. 3957. Bletia albida, _Reichenbach fil._, in _Walpers’ Annales Botanices Systematicæ_, vi., 428.