DISTINCTION OF SOUTH-AMERICAN HAPLOGLOIA-ANDERSONII AND CHORDARIA-LINEARIS (PHAEOPHYCEAE) BASED ON DIFFERENCES IN SEXUAL REPRODUCTION, MORPHOLOGY, ECOPHYSIOLOGY, AND DISTRIBUTION

Haplogloia andersonii (Farlow) Levring is an anti-tropical species that occurs on cold and warm-temperate Pacific coasts of both Americas. In its habit it resembles the subantarctic species Chordaria linearis (Hooker et Harvey) Cotton. Culture studies show that the species differ in morphology and e...

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Bibliographic Details
Main Author: PETERS, AF
Format: Article in Journal/Newspaper
Language:English
Published: 1992
Subjects:
ANTARCTICA
BIOGEOGRAPHY
CHORDARIA-LINEARIS
HAPLOGLOIA-ANDERSONII
LIFE HISTORY
MORPHOLOGY
PHAEOPHYCEAE
SOUTH-AMERICA
TAXONOMY
Cape Horn
Hooker
Pacific
Patagonia
Antarc*
Antarctica
Macquarie Island
Online Access:http://hdl.handle.net/11370/5e92b09b-4dcf-4af9-a474-5699608e7223
https://research.rug.nl/en/publications/distinction-of-southamerican-haplogloiaandersonii-and-chordarialinearis-phaeophyceae-based-on-differences-in-sexual-reproduction-morphology-ecophysiology-and-distribution(5e92b09b-4dcf-4af9-a474-5699608e7223).html
Description
Summary:Haplogloia andersonii (Farlow) Levring is an anti-tropical species that occurs on cold and warm-temperate Pacific coasts of both Americas. In its habit it resembles the subantarctic species Chordaria linearis (Hooker et Harvey) Cotton. Culture studies show that the species differ in morphology and ecophysiology of their microscopic gametophytes and in gamete behavior. Details of sporophyte anatomy are presented that also allow the distinction of field plants. In South America, H. andersonii occurs only on the Pacific coast, from central Peru (14-degrees-S) to southern Chile (50-degrees-S). Chordaria linearis occurs on the Pacific coast from Chiloe Island (43-degrees-S) to Cape Horn (56-degrees-S). In the shared area the species may co-occur. On the Atlantic coast, C. linearis was newly collected at a locality in northern Patagonia (41-degrees-S). In addition, C. linearis occurs in Antarctica. Haplogloia moniliformis Ricker, recently described from Macquarie Island, is probably synonymous with Chordaria linearis.

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