Sometimes one finds here fronds of laminaria which have been washed ashore.
The stipes or stalks of laminaria cloustoni are used in surgery.
At first they could see little below them, save a dark jungle of laminaria, with an occasional darting fish.
Stems of laminaria thrown out by the waves should also be carefully examined.
This species is often abundant on the fronds of laminaria washed ashore, and also on Rhodymenia and Fucus.
Algin, a viscous, gummy substance obtained from certain seaweeds, more especially those of the genus laminaria.
Fucus and laminaria constitute the kelp from which iodine is obtained, and were at one time the source of the potash of commerce.
The weeds most valued for the purpose are the Fucus vesiculosus, nodosus, and serratus, and the laminaria bulbosa and digitata.
The shells of laminaria, 23, 24, are completely enveloped in similar lobes.
laminaria digitata, six feet long, is found here sometimes under these circumstances.