@booklet {116, title = {No longer shipwrecked{\textemdash}Selkirkia (Boraginaceae) back on the mainland with generic rearrangements in South American {\textquotedblleft}Omphalodes{\textquotedblright} based on molecular data}, howpublished = {PhytotaxaPhytotaxa}, volume = {270}, number = {4}, year = {2016}, month = {24 Aug 2016}, pages = {231{\textendash}251}, publisher = {Magnolia Press}, edition = {24 Aug 2016}, chapter = {231}, abstract = {

The genus Omphalodes (Boraginaceae) has recently been shown to be polyphyletic. Two distantly related lineages have already been segregated into the genera Memoremea (Central Europe) and Nihon (East Asia), respectively. We expanded the taxon sampling in the Omphalodeae and confirm that the genus is still paraphyletic to the two monotypic genera Selkirkia from the Juan Fern\ández Islands off the coast of Chile and Myosotidium from Chatham Island off the coast of New Zealand, plus two South American species currently assigned to Cynoglossum, and one species recently segregated from the latter genus as Mapuchea. Four clades are retrieved in a narrowly delimited Omphalodes group: 1) Iberodes, the annual southwestern European species of Omphalodes s.l. that have been recently segregated into this genus, 2) Omphalodes s.str., perennial western Eurasian species (including the type species of the genus), 3) the North American species of Omphalodes, and 4) the southern hemispheric Myosotidium as sister to a monophyletic group with Mapuchea plus the two other South American species of \“Cynoglossum\” and the island shrub Selkirkia berteroi. We argue that the taxa of this latter clade are best placed into an expanded genus Selkirkia. Selkirkia then represents a morphologically coherent entity with glochidiate nutlets. Its considerable difference in vegetative morphology to Myosotidium is easily explained by the highly divergent habitats the respective plants occupy. Lectotypifications, illustrations, and descriptions are provided for Myosotidium and the species of the expanded genus Selkirkia.

}, keywords = {island woodiness, ITS, molecular phylogeny, Taxonomy, trnL{\textendash}trnL{\textendash}F}, author = {Holstein, Norbert and Chac{\'o}n, Juliana and Hilger, Hartmut H. and M. Weigend} } @article {32, title = {Phylogeny, karyotype evolution and taxonomy of Cerinthe L. (Boraginaceae)}, journal = {Taxon}, volume = {58}, year = {2009}, chapter = {1307}, abstract = {

A phylogenetic and karyological analysis of the small and poorly known genus Cerinthe L. (Boraginaceae-
Lithospermeae) was performed using ITS sequences and standard chromosomal techniques. All taxa are
diploid with 2n = 16 or 2n = 18 and show a variable degree of infraspecific variation, in particular in the
polymorphic C. major and C. minor. Change in base number is associated with an early split between the
two well-supported clades of C. major, corresponding to Cerinthe sect. Cerinthe, and that of all other taxa
belonging to C. sect. Ceranthe, with the base x = 8 found only in the strictly annual C. major group, and
x = 9 in the other five species of the genus: C. minor, C. glabra, C. tenuiflora, C. retorta and C. palaestina.
The latter section is subdivided into the E Mediterranean, annual lineage of C. palaestina\–C. retorta and
the mainly continental, perennial group of C. minor\–C. glabra, the sister of which is the Corsican endemic
C. tenuiflora. The hypothesis that x = 9 represents the primary haploid number and x = 8 is derived through
descending aneuploidy, is discussed. A taxonomic revision of the genus is provided and the following formal
taxonomic changes are proposed: C. major L. subsp. oranensis (Batt.) Selvi \& Cecchi, stat. nov.; C. major
L. subsp. purpurascens (Boiss.) Selvi \& Cecchi, stat. nov.; C. minor L. subsp. cleiostoma (Boiss. \& Sprun.)
Selvi \& Cecchi, stat. nov. Cerinthe tenuiflora, C. retorta and the poorly known C. palaestina are well-defined
species with little internal variation.

}, keywords = {Boraginaceae, Cerinthe, chromosome evolution, molecular phylogeny, systematics, Taxonomy}, url = {http://www.jstor.org/stable/27757019}, author = {Federico Selvi and L. Cecchi and A. Coppi} }