Morphological Study of the Marine Algal Genus Padina (Dictyotales, Phaeophyceae) from Southern Philippines: 3 Species New to Philippines

doi:2005.20.2.99

Algae > Volume 20(2); 2005 > Article

Algae 2005;20(2): 99-112. doi: https://doi.org/10.4490/algae.2005.20.2.099

Paul John L. Geraldino, Lawrence M. Liao and Sung Min Boo¹^*

Department of Biology, University of San Carlos, 6000 Cebu City, Philippines
¹Department of Biology, Chungnam National University Daejeon 305-764, Korea

ABSTRACT

This monographic study presents morphological descriptions of eight species of Padina collected from the Visayas and Mindanao regions of southern Philippines, including distributions of each species and a taxonomic key for all the species examined. Of these species, three are new records for the Philippines, namely: P. fernandeziana Skottsberg and Levring, P. jonesii Tsuda and P. moffittiana Abbott and Huisman. One species, P. antillarum (Kutzing) Piccone, represents a new nomenclatural record, which is applied to a Philippine species for the first time. Four species previously reported in the Philippines are reconfirmed and described P. australis Hauck, P. minor Yamada, P. boryana Thivy and P. sanctae-crucis Børgesen. All eight species studied have distromatic thalli, except for P. antillarum which is tetrastromatic. Three of these have indusiate sporangia, namely: P. sanctae-crucis, P. moffittiana and P. fernandeziana.

Key words: Dictyotales, morphology, Padina, Phaeophyceae, taxonomy