380 P. ORPEN BOWER, 
I think, however, that the two accounts may be harmon- 
ised by the supposition that Mr. Monteiro has made the 
very natural mistake of regarding the feeder of Welwitschia 
as the homologue of the cotyledon of Commeleyna. This 
supposition is, moreover, supported by the fact that he 
describes the ‘‘ plumule” as developing “ two germinal 
leaves,” which from his further description are, without 
doubt, the structures which I have throughout called coty- 
ledons. Toascribe to the true cotyledons a plumular origin 
is the natural result of regarding the feeder-as a cotyledon. 
