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Stems leafy, without pseudobulbs: lvs. distichous, coriaceous or fleshy, the persistent sheaths covering the St.: fls. borne in simple or compound lateral clusters; sepals about equal, spreading, the dorsal broader than the lateral; petals similar to the dorsal sepal; lip erect. or bent in, attached to the foot of the column, spurred at the base, the spur hollow; pollinia 2.—Species about 30, distributed from Malay Archipelago to India, E. Asia and Japan.

Stems leafy, without pseudobulbs: lvs. distichous, coriaceous or fleshy, the persistent sheaths covering the St.: fls. borne in simple or compound lateral clusters; sepals about equal, spreading, the dorsal broader than the lateral; petals similar to the dorsal sepal; lip erect. or bent in, attached to the foot of the column, spurred at the base, the spur hollow; pollinia 2.—Species about 30, distributed from Malay Archipelago to India, E. Asia and Japan.

Nearly all the species of this genus are from the East Indies and therefore require the warmhouse treatment, with a minimum of 65° F. in winter. As they have no pseudobulbs, but an erect, evergreen stem, they must never be allowed to become perfectly dry. Ample drainage of charcoal and broken pots is very essential, with a surfacing of moss, preferably sphagnum, renewed each year, the usual peat fiber being omitted. The best-known species is A. odoratum and is often seen in collections flowering freely. A. Fieldingii is also an interesting plant, as the spikes grow to the length of 18 inches, are dense-flowered, and known as the "fox-brush orchid," the color being a beautiful rose-pink. A. Lamrenciae is another fine plant, from the Philippines but not yet common in gardens.— Propagation is effected only by cutting off the top of the plant and setting it down in another pot, and waiting for the other part to send out shoots. The roots are mostly aerial, and no attempt must be made to confine these to the pots. If the size pot used is large, it should be perforated at the sides to admit of a free circulation of air. (Orpet.)

Nearly all the species of this genus are from the East Indies and therefore require the warmhouse treatment, with a minimum of 65° F. in winter. As they have no pseudobulbs, but an erect, evergreen stem, they must never be allowed to become perfectly dry. Ample drainage of charcoal and broken pots is very essential, with a surfacing of moss, preferably sphagnum, renewed each year, the usual peat fiber being omitted. The best-known species is A. odoratum and is often seen in collections flowering freely. A. Fieldingii is also an interesting plant, as the spikes grow to the length of 18 inches, are dense-flowered, and known as the "fox-brush orchid," the color being a beautiful rose-pink. A. Lawrenciae is another fine plant, from the Philippines but not yet common in gardens.— Propagation is effected only by cutting off the top of the plant and setting it down in another pot, and waiting for the other part to send out shoots. The roots are mostly aerial, and no attempt must be made to confine these to the pots. If the size pot used is large, it should be perforated at the sides to admit of a free circulation of air. (Orpet.)

A. Micholitzii, Rolfe. A recently intro. species, allied to A. odoratum. Light rose-purple fls. and a rather short spur. Annam.—A. cylindricum, Lindl. Resembles A. vandarum in habit and foliage. Fls. about 1 1/2 in. across; the sepals and petals waxy white, sometimes tinged rose, the lip white, the side lobes purple-streaked, the middle lobe yellow with a crimson tip. India.—A. Duqueanei, Hort. Fls. white dotted with rose.—.A. Emericii, Reichb. Fls. 1 in. long, the sepals and petals white, amethyst-blotched at apex, the side lobes of Up purple-spotted, the middle lobe small, narrowly oblong, acute, amethyst; spur incurved.—A. Thibautianum, Reichb. Racemes longer than the lvs.: fls. rose with an amethyst lip; spur curved.

A. Micholitzii, Rolfe. A recently intro. species, allied to A. odoratum. Light rose-purple fls. and a rather short spur. Annam.—A. cylindricum, Lindl. Resembles A. vandarum in habit and foliage. Fls. about 1 1/2 in. across; the sepals and petals waxy white, sometimes tinged rose, the lip white, the side lobes purple-streaked, the middle lobe yellow with a crimson tip. India.—A. Duqueanei, Hort. Fls. white dotted with rose.—.A. Emericii, Reichb. Fls. 1 in. long, the sepals and petals white, amethyst-blotched at apex, the side lobes of Up purple-spotted, the middle lobe small, narrowly oblong, acute, amethyst; spur incurved.—A. Thibautianum, Reichb. Racemes longer than the lvs.: fls. rose with an amethyst lip; spur curved.