Bibliographic Detail
Athanasiadis, A., 1999
Reference:
Athanasiadis, A. (1999). The taxonomic status of Lithophyllum stictaeforme (Rhodophyta, Corallinales) and its generic position in light of phylogenetic considerations. Nordic Journal of Botany 19: 735-745.
Abstract:
The type of Lithophyllum stictuqfimne (Areschoug) Hauck (= Melobesiu
stictat!formis Areschoug in J. Agardh) is re-examined and shown to be conspecific
with a common Mediterranean foliose coralline recently recognized as Lithophvllum
jirotic/osum (Dufour) Furnari, Cormaci et Alongi (eM ehbesiu $ Y J ~ ~ O SDU u four) and
previously known by the misapplied name Lithophyllum (Pseudolithophyllum)
expunsum Philippi. The generic position of the species in Lithophyllum or
Pseudolithophyllum is phylogenetically examined, in the Hennigian sense. It is
shown that secondary perithallial outgrowths (faux hypothalle) may represent a
synapomorphy for these genera that traditionally have been segregated from each
other by the presence, respectively absence, of a coaxial faux hypothalle.
Recognition of both Lithophyllum and Pseudolithriphyllum by virtue of a single
character in its two states (absent vs. present) is however not tenable, if these genera
are considered to be sister-taxa.
