smooth; the margin is either quite entire and naked, or more frequently it 
is pinnated with linear-lanceolate or subulate processes. These pinne are 
1_1 inch long, 1-14 line wide, patent, and subacute, mostly quite simple. 
No cystocarps have been observed. etraspores cruciate, in minute, dot- 
like, deep-red sori, immersed in the cortical layer of the frond. The colour 
is a pale brownish-red, deeper below, and changing to orange and yellow. 
The sudstance is rigid and tough, somewhat leathery. In drying, the frond 
scarcely adheres to paper, except after long steeping and under considerable 
pressure. 
Some doubt must rest on this species until its cys/ocarps shall 
have been discovered. Meanwhile our figure may direct atten- 
tion to it from our friends in T'asmania, where it seems to be 
not uncommon. Some forms of it may be confounded with 
Rhodymenia polymorpha, but an appeal to the microscopic struc- 
ture of the frond will enable the student to ascertain to which 
of these externally similar plants his specimens should be re- 
ferred. | 
No other Austraiian Alga can well be mistaken for it. 
Fig. 1. Gr@arTINA LANCEOLATA,—the natural size. 2. Section of the frond, 
showing two immersed sovi of tetraspores. 3. Tetraspores from the same, 
—magnified. 
