220 
THE SEAWEEDS 
Nit'ophyllum Gunnianum Harvey. 
Frond with a short stipe to 3 mm. long, broadly membranaceous, pro- 
foundly sub-palmato-laciniate, the laciniae broad, 2 cm. to 10 cm. wide, with 
narrow axils and blunt apices. Whole frond 15 cm. to 25 cm. long, 20 cm. 
to 30 cm. wide. In older plants the frond riddled with roundish holes. 
Cystocarps less than 1 mm. in diameter, dark-coloured and sprinkled over 
the frond. Sori of tetrasporangia very minute, dispersed over the frond. 
Colour sometimes rosy, sometimes dark-purple. 
The Southern States and Tasmania. 
Fig. 84. — Nitophyllum Gunnianum: a, plant; b, section 
through a cystocarp and the frond; c, strings 
of spores from the same; d, small portion of 
the surface and of the erose margin. (After 
Harvey.) 
