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Type: Article
Published: 2017-09-01
Page range: 139–148
Abstract views: 20
PDF downloaded: 1

A new marine alga, Pterocladiella andresii sp. nov. (Gelidiales, Rhodophyta) and its relationship to P. caloglossoides from Pacific South America

University Herbarium, University of California, 1001 Valley Life Sciences Building #2465, Berkeley, CA 94720, USA Department of Biology, Chungnam National University, Daejeon 34134, Korea
Department of Biology, Chungnam National University, Daejeon 34134, Korea
Department of Biology, Chungnam National University, Daejeon 34134, Korea
Chile cox1 morphology Peru Pterocladiaceae rbcL taxonomy Algae

Abstract

The taxonomy of Pterocladiella from Pacific South America remains less studied. On the basis of morphological observations and mitochondrial cox1 and plastid rbcL sequences, we describe a new species, P. andresii, from Chile and characterize recently collected specimens of P. caloglossoides from Peru, the first verified since Howe’s original collections of the type. Pterocladiella andresii is distinguished by small turfs of simple, narrow, compressed thalli that are rarely irregularly branched, and possess rhizines in the medulla, tetrasporangial sori with sterile a margin, and v-shaped to irregularly arranged tetrasporangia. New collections of Pterocladiella caloglossoides from northern Peru accord well with its original description. Both cox1 and rbcL phylogenies revealed that P. andresii was sister to P. caloglossoides from Peru, and this group formed a clade with P. luxurians from California, USA. Morphological differences among P. andresii and its putative relatives are presented.