The remarkable arrangement of the flowers of T spiraliflora can be explained in the following manner: In the young stages of the spikes the flowers are arranged in 2 ranks. In course of the development of the spikes, however, their axis begins to twist, and the result is a twisted, spirostichous arrangement of the flowers. Sometimes one can see the twisting, when looking from above on a spike. unfortunately no young stages were at hand, although the plant has already flowered in cultivation, but exactly in this time the author was absent from Heidelberg and on expedition. —SeeJ. Bromeliad Soc.
