A new genus and species from the North Atlantic, Archestenogramma profundum (Phyllophoraceae, Rhodophyta), with taxonomic resolution of the orphaned Leptofauchea brasiliensis

作者：Schneider Craig W^*; Chengsupanimit Tayoot; Saunders Gary W

来源：European Journal of Phycology, 2011, 46(4): 442-452.

DOI：10.1080/09670262.2011.628699

• Archestenogramma brasiliense comb. nov.
• Archestenogramma gen. nov.
• Archestenogramma profundum sp nov.
• COI-5P
• Gigartinales
• Leptofauchea
• Leptofauchea brasiliensis
• LSU
• Phyllophoraceae
• rbcL

A recent collection of a red alga from Bermuda showed great similarities to Leptofauchea brasiliensis from Brazil, providing the impetus for a morphological and anatomical evaluation of the two. Based on these studies, the two appear to be congeneric. Molecular phylogenetic analyses of the Bermudian plants showed them to be to be a new genus and species of the Phyllophoraceae (Gigartinales), Archestenogramma profundum C. W. Schneider, Chengsupanimit & G. W. Saunders. In light of our anatomical observations, our phylogenetic results also proved instructive as to the disposition of L. brasiliensis, a species that was suggested to be incorrectly assigned to the Rhodymeniales for over a quarter of a century and even recently excluded from Leptofauchea. The morphological and anatomical similarity of L. brasiliensis to A. profundum suggested its movement from the Faucheaceae to a new taxonomic placement in the Phyllophoraceae, as A. brasiliense (A. B. Joly) C. W. Schneider, Chengsupanimit & G. W. Saunders, comb. nov.

• 出版日期2011