This _Cattleya_ is one of those which should always be kept plump in the stems and leaves, for if allowed to shrivel it will be found difficult to get them again into a plump healthy condition. Give all the light possible, so that the stems may be well ripened. A great deal of success depends upon the thorough maturation of the successive growths, for if they are weak or immature they will produce but puny results. The plants require the same temperature as _C. Trianæ_.
Cattleya Mossiæ.--We have lately received from De Barry Crawshay, Esq., Sevenoaks, flowers of a fine series of varieties of _Cattleya Mossiæ_. The flowers were all large and very richly marked, some of the colours being exceedingly distinct, and the lips very large.--B. S. W.
Dendrobium Dearei.--We were agreeably surprised to see this novelty exhibited by Sir T. Lawrence, Bart., at the Summer Show of the Royal Horticultural Society. The flowering bulb was two feet six inches high, and was furnished with two spikes of flowers. This species seems to differ from the _formosum_ section of the genus, by throwing out lateral as well as terminal spikes. The flowers were about thirty in number, pure white, with a slight tinge of green in the throat. In shape they resemble those of _D. Jamesianum_, but they are somewhat smaller.--H. W.
[Illustration: PL. 94. ODONTOGLOSSUM ALEXANDRÆ GUTTATUM.]
ODONTOGLOSSUM ALEXANDRÆ GUTTATUM. [Plate 94.] _Native of New Grenada._
Epiphytal. _Pseudobulbs_ ovate-oblong, compressed, green while young, becoming tinged with purple as they grow older, diphyllous, with one or two accessory ones from the base of the pseudobulbs, bright green. _Racemes_ proceeding from the axils of the accessory leaves, drooping. _Flowers_ crowded, white, beautifully spotted with bright chocolate-red, nearly four inches across; _sepals_ lanceolate, crispy, white, with a few bold spots and blotches of chocolate-red about the middle part; _petals_ broader and more wavy, with a solitary nearly central spot on each; _lip_ oblong, subcordate at the base, much crisped at the margin, the apex recurved so as to produce an emarginate appearance, white, slightly dashed with yellow on the disk, where there are a few longitudinal lines and a series of radiate lines of light red-brown, and two divergent yellow crests, the margins half way down being marked by confluent blotches and a few largish spots both on the edge and on the surface towards the front. _Column_ white, slightly spotted with brown.