ACANTHOPHIPPIUM (the derivation of this word is not apparent). ORD. Orchideae. A peculiar class of terrestrial stove orchids. Flowers rather large, racemose, few; sepals combined in a broad oblique pitcher, including the petals, which are adnate to the base of the column; column short, produced into a long foot. Pseudo-bulbs oblong. Leaves few, large, longer than the scapes. The best species are the two first-mentioned. They will thrive well in sandy peat, with a quantity of small stones, broken pots, or gravel. A great deal of heat and moisture are absolutely essential during the growing period. Propagated, as soon as growth commences, by dividing the pseudo-bulbs. ACANTHOPHIPPIUM bicolor (two-coloured).* fl. purple and yellow, about 2in. long, campanulate, produced in clusters of three or four together; petals oblong-lanceolate, acutish; lateral lobes of lip rounded. June. h. 9in. Ceylon, 1833. ACANTHOPHIPPIUM Curtisii (Curtis's).* fl. same shape as above (except the lip), with numerous purple spots, light rose, and flush; column white, nail of lip yellow, keels yellowish, laciniae white with purple. Malay Archipelago, 1881. The five keels between the side laciniae distinguish it from the foregoing species and ACANTHOPHIPPIUM sylhetense. ACANTHOPHIPPIUM javanicum (Javanese).* fl. yellow and red, with distinct longitudinal stripes; petals triangular; lip three-lobed; lateral lobes truncate; intermediate lobe constricted in middle, ovate, and tuberculate at the apex, fleshy on both sides at base, with truncate emarginate inflexed teeth. September. h. 1 1/2ft. Java, 1843. ACANTHOPHIPPIUM sylhetense (Sylhet). fl. white, with many irregular spots and blotches towards the extremities of the outer portions. June. h. 9in. Sylhet, 1837.