Macradenia
(from makros, long, and aden, a gland; referring to the long process of the pollen-masses). SYN. Rhynchadenia. ORD. Orchideae. A genus comprising only two or three species of stove epiphytal Orchids, confined to the West Indies, and differing from Oncidium in mere technical details. They are rather more curious and interesting than beautiful. For culture, see Oncidium.
M. Brassavolae (Brassavola).* fl., sepals and petals cinnamon, margins ochre-coloured; lip trifid, side lobes rhomboid, middle very large, cuspidate, white, with purple streaks, with yellow borders to the side lobes; peduncle densely-flowered. l. one or two, oblong, acute, 5in. long, 1/2in. broad. Columbia, 1864.
M. lutescens (yellowish). fl. dingy yellow, spotted with brownish-purple; lip undivided, cucullate-concave, taper-pointed; peduncle four or five-flowered. November. l. solitary. Trinidad, 1821. (B. R. 612.)