The Morphology of Phylloglossum Drummondii. 
BY 
H. F. WERNHAM, B.Sc. 
t 
With eight Figures in the Text. 
pHYLLOGLOSSUM was first described in 1843 by Kunze, in the 
1 Botanische Zeitung; its morphology was investigated in great 
detail by Bertrand in 1885 ( 5 ). Other 
contributors to our knowledge of the ^ 
plant will be referred to as we pro¬ 
ceed ; they are, notably, Bower (1), 
Mettenius ( 9 ), Treub ( 12 ), and Thomas 
( 13 ), who has given a detailed de¬ 
scription of the gametophyte. 
The observations recorded in the 
present paper were made on serial micro- 
tomed sections of two plants which, in 
their external features, showed no im¬ 
portant points of dissimilarity ; on the 
other hand, they were not precisely 
the same as regards their anatomy: 
the differences will be referred to in the 
description which follows. 
External Morphology. 
A small plant (Fig. 1), about 1 
to 1^ in. high; on the under side of 
the thickened lower part two tubers 
are borne, each upon what appears to 
be a relatively long stalk. Immediately 
above the insertion of these stalks, 
borne laterally to the thickened part, 
are the roots, which are horizontal, or 
almost so. 
This thickened part, which is the stem, is much compressed vertically. 
On its upper surface it bears five or six subcentric fleshy leaves, each 
[Annals of Botany, Vol. XXIV. No. XCIV. April, 1910.] 
Fig. i. General appearance, y.t., young 
tuber; ct., current season’s tuber; si., stem 
region; r, r , roots; /, leaves; s, strobilus; 
P , pedicel of strobilus. 
