466 
Notes . 
colour, similar to those on other prothalli of Trichomcines. As in the 
case of Tr. alatum , the prothalloid growths bear on their apices short 
branchlets, or sterigmata (Woodcut 3) ; these occur singly or in tufts, 
and balanced upon the apex of each in the most elegant manner is 
a single gemma, of spindle-form, similar to those in Tr. alatum (1. c. 
Plates XV, XVI). The attachment of these is very slight, and the 
gemmae very easily displaced. 
That the gemmae germinate readily is seen from the fact that on the 
specimen kindly sent to me by the Director of the Royal Gardens, 
