Achnanthes .] 
IX. ALGiE. 
721 
1. A. brevipes, Agardh. Frond with a very short stipes and 2-5 
frustules, which have 2 coloured spots. — Mont, in Voy. au Pole Sud, 1. 
Lord Auckland’s Island, on Polysiphonia glomerulata, D'Urville. (Common in 
many seas.) 
114. SCHIZONEMA, Agardh. 
Frond of microscopic, brownish or greenish, flat filaments, which are ex- 
cessively fragile, breaking up into rectilinear frustules ; frustules in longitu- 
dinal series, enclosed in the simple or branched mucous or membranous frond. 
Very minute Algae, parasitic on other Algae, etc., or occurring in floating mass. 
1. S. crispum, Montagne ; — FI. N. Z. ii. 266. Threads tufted, green, 
very crisp, ■£- £ in. long, the tips penicellate ; branchlets obtuse ; frustules 
nearly parallelograms. 
Lord Auckland’s group, on Polysiphonia, glomerulata , D'Urville. 
