Sigmatostalyx
(from sigma, sigmatos, S-shaped, and stalix, a stake). ORD. Orchideae. A genus comprising about seven species of dwarf, stove Orchids, natives of tropical America. Flowers mediocre or rather small, shortly pedicellate, scattered, racemose; claw of the lip long, two-keeled; peduncles axillary under the one-leaved pseudo-bulbs. Few of the species are yet in cultivation. For culture, see Oncidium.
S. malleifera (hammer-bearing). fl. yellow, brown-spotted, developed at distant periods; sepals and petals ligulate-triangular, acute; lip three-parted, the divisions linear, emarginate; callus hammer-like; raceme slender. l. light green, cuneate-ligulate, 5in. long, 1/2in. broad. Pseudo-bulbs dark brown, oblong, 1 1/2in. long, 1/2in. broad. New Grenada, 1883.
S. radicans (rooting). fl. yellow, greenish, and violet-purple, in an elongated raceme; sepals and petals cuneate-oblong, acute; lamina of the lip transversely sagittate, one to three-lobulate; calli in one or two series. l. cuneate, linear-ligulate, acute, twin. Pseudo-bulbs oblong-ligulate. Rhizome radicant. Brazil.