BRASS A VOL A

(named in honour of A. M. Bra a vol a, a Venetian botanist). O RD. Orchideæ. A genus of epiphytal orchids, requiring the heat of an intermediate house. Flowers large, usually with narrow acuminate greenish petals and sepals, and a white lip, which is sometimes broad; column having a pair of great falcate ears on each side of the front, and eight pollen ma es. Leaves solitary, succulent. They are of easy culture on blocks of wood, with a little mo , suspended from the roof. Water should be plentifully given during the growing season; at other times, a very small quantity will suffice. About seventeen or eighteen species have been introduced, of which the following only are worth growing: