New and interesting marine algae from the shetland isles ii. Hollow and solid stiped laminaria (simplices)

Abstract

In addition to Laminaria saccharina, plants fitting Borgesen’s description of L. faeroensis, with hollow stipes, occurred in Shetland. Relative to the frond, the stipe length of L. saccharina increased with shelter; hollow stipes were even longer, were inflated and occurred only in extreme shelter. There is no justification for calling the hollow stiped specimens L. faeroensis and the situation seems best explained by postulating a genetic but not specific difference. © 1976 Taylor & Francis Group, LLC.