Leptophytum flavescens comb. nov. (Corallinales, Rhodophyta), an Arctic endemic from the sublittoral of NW Spitsbergen, North Norway, and western Novaya Zemlya, with epitypification of L. laeve

• Main Author: Athanasiadis, Athanasios
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Figshare 2016
• Subjects: Cell Biology; Genetics; FOS Biological sciences; Physiology; Evolutionary Biology; 59999 Environmental Sciences not elsewhere classified; FOS Earth and related environmental sciences; Ecology; 69999 Biological Sciences not elsewhere classified; Developmental Biology; Cancer; Infectious Diseases; FOS Health sciences; Arctic; Kjellman; Norway; Karlsøy; North Norway; Novaya Zemlya; Spitsbergen; Troms
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.3261850; https://figshare.com/collections/_i_Leptophytum_flavescens_i_comb_nov_Corallinales_Rhodophyta_an_Arctic_endemic_from_the_sublittoral_of_NW_Spitsbergen_North_Norway_and_western_Novaya_Zemlya_with_epitypification_of_i_L_laeve_i_/3261850

Type material of Lithothamnion flavescens Kjellman, originally described from Karlsøy (Troms) and Karmakul Bay (Novaya Zemlya), is re-examined and a lectotype is selected. Type specimens and other collections from NW Spitsbergen and North Norway possess distinctive characters of the genus Leptophytum , including the development of flattened epithallial cells, short subepithallial cells, and simple spermatangial structures. Leptophytum flavescens (Kjellman) comb. nov. resembles the generitype Leptophytum laeve , differing in having: (1) a thicker perithallium, to 900 µm (vs. 350 µm in L. laeve ), that embeds older conceptacles, and (2) non-differentiated (in size or shape) pore cells of multiporate roofs. An epitype for L. laeve is also selected, which consolidates the status of this species and the genus, in agreement with the current literature and all publications prior to 1996.