@article {gottschling_testing_2004, title = {Testing hypotheses on disjunctions present in the primarily woody Boraginales: Ehretiaceae, Cordiaceae, and Heliotropiaceae, inferred from ITS1 sequence data}, journal = {Int. J. Plant Sci.}, volume = {165}, number = {4 Suppl.}, year = {2004}, pages = {S123{\textendash}S135}, abstract = {

Hypotheses on the origin of the current distribution patterns and bicontinental disjunctions of Cordiaceae, Ehretiaceae, and Heliotropiaceae (Primarily Woody Boraginales) are tested by pairwise comparison of Kimura two-parameter distances. Estimated absolute dates of fossils and geological events (plate tectonics, climate changes) were used to calibrate a molecular clock. A mid-Cretaceous origin of the Primarily Woody Boraginales is proposed with an initial diversification in South America. Plate tectonics appear to play a minor role in their phylogeography. Most disjunctions are best explained by the rare events of long-distance dispersal because of the widespread occurrence of drupaceous fruits and their potential for endozoochoria. Furthermore, migrations and extinctions might have played a considerable role in the formation of the current distribution patterns.

}, keywords = {{ITS1}, distribution, divergence rate, Kimura two-parameter distances, long-distance dispersal, paleoclimate, phylogeography, vicariance.}, author = {Marc Gottschling and Diane, N and HH Hilger and M. Weigend} } @article {hilger_euro+med_2005, title = {The {Euro+Med} treatment of Boraginaceae in Willdenowia 34 - a response}, journal = {Willdenowia}, volume = {35}, year = {2005}, pages = {43{\textendash}48}, author = {HH Hilger and Marc Gottschling and Federico Selvi and Bigazzi, M. and E. Langstr{\"o}m and Zippel, E. and Diane, N. and M. Weigend} } @article {gottschling_congruence_2005, title = {Congruence of a phylogeny of Cordiaceae (Boraginales) inferred from {ITS1} sequence data with morphology, ecology, and biogeography}, volume = {92}, year = {2005}, pages = {425{\textendash}437}, keywords = {Boraginales 2013}, author = {Marc Gottschling and Miller, JS and M. Weigend and HH Hilger} } @article {22, title = {Fossil and extant Western Hemisphere Boragineae, and the polyphyly of "Trigonotideae" Riedl (Boraginaceae: Boraginoideae)}, journal = {Systematic Botany}, volume = {35}, year = {2010}, note = {

doi: 10.1600/036364410X518874
0363-6445
doi: 10.1600/036364410X518874

}, month = {2010///}, pages = {409 - 419}, abstract = {null}, url = {http://www.bioone.org/doi/abs/10.1600/036364410X518874}, author = {M. Weigend and Marc Gottschling and Federico Selvi and HH Hilger} } @article {23, title = {Five new species of Lithospermum L. (Boraginaceae tribe Lithospermeae) in Andean South America: Another radiation in the Amotape-Huancabamba zone}, journal = {Taxon}, volume = {59}, year = {2010}, note = {

[1]
[2]
[3]
[4]

}, month = {2010///}, pages = {1161 - 1179}, url = {http://www.ingentaconnect.com/content/iapt/tax/2010/00000059/00000004/art00015}, author = {M. Weigend and Marc Gottschling and HH Hilger and Nicolai M. N{\"u}rk} } @article {24, title = {Codonaceae {\textemdash} a newly required family name in Boraginales}, journal = {Phytotaxa}, volume = {10}, year = {2010}, month = {2010///}, pages = {26 - 30}, author = {M. Weigend and HH Hilger} } @article {25, title = {Marbleseeds are gromwells - Systematics and evolution of Lithospermum and allies (Boraginaceae tribe Lithospermeae) based on molecular and morphological data}, journal = {Molecular Phylogenetics and Evolution}, volume = {52}, year = {2009}, month = {2009///}, pages = {755 - 768}, keywords = {America Fruit Historical biogeography Macromeria Nomosa Onosmodium Phylogeny Pollen morphology Timing}, url = {http://www.sciencedirect.com/science/article/B6WNH-4WBK7BK-3/2/5ef424fa3684d5c985634011154460d5}, author = {M. Weigend and Marc Gottschling and Federico Selvi and HH Hilger} } @article {26, title = {Phylogeny and systematics of Lithodora (Boraginaceae-Lithospermeae) and its affinities to the monotypic genera Mairetis, Halacsya and Paramoltkia based on ITS1 and trnL(UAA)-sequence data and morphology}, journal = {Taxon}, volume = {57}, year = {2008}, month = {2008/02//}, pages = {79 - 97}, isbn = {0040-0262}, author = {Thomas, Daniel C. and M. Weigend and HH Hilger} } @article {9, title = {Multiple origins for Hound{\textquoteright}s tongues (Cynoglossum L.) and Navel seeds (Omphalodes Mill.) {\textendash} The phylogeny of the borage family (Boraginaceae s.str.)}, journal = {Molecular Phylogenetics and Evolution}, volume = {68}, year = {2013}, month = {2013/09//}, pages = {604 - 618}, abstract = {AbstractRecent studies all indicated that both the affinities and subdivision of Boraginaceae s.str. are unsatisfactorily resolved. Major open issues are the placement and affinities of Boraginaceae s.str. in Boraginales and the major clades of the family, with especially the large tribes Cynoglosseae and Eritrichieae repeatedly retrieved as non-monophyletic groups, and the doubtful monophyly of several larger genera, especially Cynoglossum and Omphalodes. The present study addresses and solves these questions using two plastid markers (trnL{\textendash}trnF, rps16) on the basis of a sampling including 16 outgroup taxa and 172 ingroup species from 65 genera. The phylogeny shows high statistical support for most nodes on the backbone and on the individual clades. Boraginaceae s.str. are sister to African Wellstediaceae, Wellstediaceae{\textendash}Boraginaceae s.str. is sister to African Codonaceae. Echiochileae are retrieved as sister to the remainder of Boraginaceae s.str., which, in turn, fall into two major clades, the Boragineae{\textendash}Lithospermeae (in a well-supported sister relationship) and the Cynoglosseae s.l. (including Eritrichieae). Cynoglosseae s.l. is highly resolved, with Trichodesmeae (incl. Microcaryum, Lasiocaryum) as sister to the remainder of the group. Eritrichieae s.str. (Eritrichium, Hackelia, Lappula) are resolved on a poorly supported polytomy together with the Omphalodes-clade (incl. Myosotidium, Cynoglossum p.p.), and the Mertensia-clade (incl. O. scorpioides, Asperugo). The Myosotideae (Myosotis, Trigonotis, Pseudomertensia) are retrieved in a well-supported sister-relationship to the core-Cynoglosseae, the latter comprising all other genera sampled. Cynoglossum is retrieved as highly para- and polyphyletic, with a large range of generic segregates embedded in Cynoglossum, but other species of Cynoglossum are sister to Microula or to the American {\textquotedblleft}Eritrichieae{\textquotedblright} (Cryptantha and allied genera). Representatives of the genus Cynoglossum in its current definition are segregated onto six independent lineages, members of Omphalodes onto three independent lineages. At least 11 of the genera here sampled are deeply nested in other genera. The data show that individual details of nutlet morphology (e.g., winged margins, glochidia) are highly homoplasious. Conversely, a complex of nutlet characters (e.g., characters of the gynobase and cicatrix together with nutlet orientation and sculpturing) tends to circumscribe natural units. Geographical distribution of major clades suggests that the family originated in Africa and western Asia and radiated to eastern Eurasia, with several independent dispersal events into Australia and the New World. }, keywords = {Boraginaceae, Nutlet morphology, Phytogeography}, isbn = {1055-7903}, url = {http://www.sciencedirect.com/science/article/pii/S1055790313001590}, author = {M. Weigend and Federico Luebert and Federico Selvi and Grischa Brokamp and HH Hilger} } @article {12, title = {Diversification in the Andes: Age and origins of South American Heliotropium lineages (Heliotropiaceae, Boraginales)}, journal = {Molecular Phylogenetics and Evolution}, volume = {61}, year = {2011}, month = {2011///}, pages = {90 - 102}, url = {http://dx.doi.org/10.1016/j.ympev.2011.06.001}, author = {Federico Luebert and HH Hilger and M. Weigend} } @article {13, title = {Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae)}, journal = {Taxon}, volume = {60}, year = {2011}, month = {2011///}, pages = {663 - 680}, url = {http://www.ingentaconnect.com/content/iapt/tax/2011/00000060/00000003/art00004}, author = {Federico Luebert and Grischa Brokamp and Wen, J. and M. Weigend and HH Hilger} } @article {15, title = {Epitypification of Heliotropium arborescens L. (Heliotropiaceae)}, journal = {Taxon}, volume = {59}, year = {2010}, month = {2010///}, pages = {1263 - 1266}, url = {http://www.ingentaconnect.com/content/iapt/tax/2010/00000059/00000004/art00023}, author = {Federico Luebert and M. Weigend and HH Hilger} } @article {2, title = {From capsules to nutlets {\textendash} Phylogenetic relationships in the Boraginales}, journal = {Cladistics}, volume = {30}, year = {2014}, month = {2014}, pages = {508-518}, doi = {10.1111/cla.12061}, url = {http://onlinelibrary.wiley.com/doi/10.1111/cla.12061/abstract}, author = {M. Weigend and Federico Luebert and Marc Gottschling and Couvreur, T. L. P. and HH Hilger and James S. Miller} }