146 BOTANICAL GAZETTE [FEBRUARY 
Gracilaria coronopifolia J. Agh.—This species is called limu 
manauea, and is extensively used for food by the Hawaiians. It 
grows in shallow water along the reefs, on sandy bottoms, and in 
stormy weather often drifts ashore in considerable quantities. It 
is plentiful along the low beaches of leeward Kauai, Oahu, and 
Molokai. Because of the less favorable coasts, it is not abundant 
on Maui, and less so on Hawaii. The season of greatest abundance 
is spring and early summer, although it is fairly plentiful through- 
out the year. It is one of the limus commonly offered for sale in 
the native fishmarkets. Its air dry composition is, roughly, water 
12 per cent, protein 8 per cent, starches, sugars, etc., 58 per cent, 
crude fiber 3 per cent, and ash 17 per cent. It makes fine clear 
gelatine of excellent quality, and requires less cooking for its 
preparation than do the other algae. 
G. confervoides (L.) Bory.—Widely distributed in all oceans; 
fronds long, terete, much branched; edible, but not common. 
Hypnea nidifica. J. Agh—Intricately caespitose, expanded; 
known from various parts of the Pacific Ocean. 
H. armata (Mert.) J. Agh.—Elongate; corymbosely branched. 
This and the preceding species are known as limu huna and are 
among the most commonly eaten of the Hawaiian seaweeds. They 
are especially relished by the natives when boiled with octopus. 
They are abundant along the coral reefs, in shallow waters, and 
often drift ashore in considerable quantities. The species of 
Hypnea are common on Kauai, Oahu, and Molokai; scarce on 
~ Maui, and very rare on Hawaii. They are outranked by both 
Gracilaria and Ahmfeltia in the quality and quantity of their 
gelatine. 
RHODOMENIACEAE 
Plocamium sandvicense J. Agh.—Known only from the Hawai- 
ian Islands, leeward shores of Oahu; fronds pinnately decompound, 
very beautiful. 
Champia compressa Harv.—Fronds branched, tubular, nodose, 
purple, gelatinous, membranous; known to the Hawaiians as limu 
o-olu; common along the reefs, both in shallow water and farther 
out. Its distribution is very irregular. Also in the South Pacific 
and African waters. 
