XIV 
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. 24-th, 1838. 
This is represented at Plate XI, Fructification, figs. 4, 6, 7, 8, and 9, and elsewhere, as 
if it were the funiculus of the nucleus. 
