ACANTHOSTACHYUM (from akanthos, a spine, and stachys, a spike). ORD. Bromeliaceae. A monotypic genus of stove evergreen herbaceous plants; of easy culture in a compost of equal parts sand, decayed wood, and rotten leaves. Propagated by suckers, which strike readily in bottom heat. ACANTHOSTACHYUM strobilacea (cone-fruited). fl. red and yellow; scape simple, long, scurfy; bracts coloured. June. l. radical, very long, in-curved, narrow, thick, pungent, channelled, spiny-toothed, covered with white scurf. h. 4ft. Brazil, 1840.