A re-evaluation of subtidal Lithophyllum species (Corallinales, Rhodophyta) from North Carolina, USA, and the proposal of L. searlesii sp. nov.

作者：Richards Joseph L; Gabrielson Paul W; Hughey Jeffery R; Freshwater D Wilson

来源：Phycologia, 2018, 57(3): 318-330.

DOI：10.2216/17-110.1

• Hard bottom
• Lithophyllum atlanticum
• Lithophyllum intermedium
• Lithophyllum subtenellum
• psbA
• rbcL
• Subtidal
• Systematics
• UPA

The current identification of crustose coralline algae from North Carolina is based on a few morphoanatomical studies from the last century. We reassessed the type specimens of the two Lithophyllum species historically reported from offshore communities in North Carolina, L. intermedium with a Caribbean Sea type locality and L. subtenellum with an Atlantic southern France type locality, using scanning electron microscopy images and diagnostic rbcL sequences. Neither of the sequences generated from the type specimens matched rbcL sequences from contemporary specimens collected from subtidal North Carolina epibenthic communities. On the basis of analyses of rbcL and other loci (psbA, UPA, and COI), we instead found L. atlanticum, recently described from Brazil, and L. searlesii sp. nov. from Onslow Bay, North Carolina. These sequence data show that L. atlanticum is related to northeast Pacific species, whereas L. searlesii is related to Mediterranean species.

• 出版日期2018