Lessonia tholiformissp. nov. (Phaeophyta: Laminariales) from the Chatham Islands, New Zealand
- 1 July 1989
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Botany
- Vol. 27 (3), 461-469
- https://doi.org/10.1080/0028825x.1989.10414126
Abstract
A new species of Lessonia Bory, L. tholiformis C.H. Hay is described from the Chatham Islands of New Zealand. Unlike most other Lessonia species, the holdfast of L. tholiformis is a semi-solid dome or mound formed by overlapping layers of flattened, lobed haptera. In this respect, L. tholiformis is somewhat similar to L. nigrescens, a species growing in the intertidal region of Chile, but it differs from that species in other ways. Juveniles of L. tholiformis have rugose blades. However, the rugosity wanes with age and blades of mature plants are consistently smooth. L. tholiformis is the only species of Lessonia found growing on the Chatham Islands where it is apparently endemic. In many localities it is the dominant kelp forming thick, subtidal forests to a depth of 10 m. L. tholiformis is the fifth species of Lessonia now recorded from the south-west Pacific region — the other species being: L. variegata J. Ag. (New Zealand mainland), L. brevifolia J. Ag. (Auckland, Campbell, Antipodes, and Bounty Islands), L. corrugata Lucas (Tasmania) and L. adamsiae C.H. Hay (Snares Island).Keywords
This publication has 6 references indexed in Scilit:
- Lessonia adamsiaesp. nov. (Phaeophyta: Laminariales) from the Snares Islands, New ZealandNew Zealand Journal of Botany, 1987
- Lessonia trabeculata sp. nov. (Laminariales, Phaeophyta), a new kelp from ChilePhycologia, 1986
- The genusLessoniaBory (Phaeophyta, Laminariales) in Southern Chile and ArgentinaBritish Phycological Journal, 1978
- Notes on the marine algal ecology of some exposed rocky shores of Northland, New ZealandBotanica Marina, 1960
- The Intertidal Flora and Fauna of the Chatham IslandsNature, 1954
- Occurrence of Durvillea caepestipes on Chatham IslandNature, 1954