prolonged at the point into a tube*, or is coated by a brittle crustaceous
integument. At that end of the nucleus which is next the apex of the
seed, is uniformly found a very distinct chalaza of a deep brown, or a
bright brown colour. The interior of the nucleus is a cellular fleshy
homogeneous body, and must be regarded as an embryo destitute of
albumen.
Nothing certain is known of the germination of Orchidaceae.
University College, London, Oct. 24th, 1838.
* This is represented at Plate XI, Fructification, figs. 4, 6, 7, S, and 9, and elsewhere, as
if it were the funiculus of the nucleus.
