Algae. 1993; 8(2): 161-178.

Taxonomy of the Rhodochortaceae with Special Reference to the Plants in the Northwestern Pacific Ocean

Yong-Pil Lee

Department of Biology, Cheju National University

A normal association analysis of 10 genera hitherto referred to the Rhodochortaceae on the basis of characters of the type species results in three groups. One group is composed of two genera, Rhodochorton and Rhodothamniella, and separated by the character absence of monosporangium. The other group, characterized by presence of monosporangium, is segregated by the characters forming a discoid or filamentous basal system in tetrasporophyte. The group characterized by forming a discoid basal system comprises three genera, Acrochaetium, Kylinia, and Chromastrum. A cluster analysis of 36 taxa of the Rhodochortaceae int he northwestern Pacific region also results in three clusters: Acrochaetium-cluster, Auduinella-cluster, and Rhodochorton-cluster. The results of normal association analysis and cluster analysis correspond to the generic classification schemes suggested by Woelkerling (1983) and Lee and Lee(1988).

Keywords : taxonomy, Rhodochortaceae, Auduinella dictyotae, Acrochaetium alariae, Rhodochorton subimmersum