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Luebert, F. et al. 2017. ?Historical biogeography of Boraginales: West Gondwanan vicariance followed by long-distance dispersal??. Journal of Biogeography 44:158?169. Retrieved  (http://onlinelibrary.wiley.com/doi/10.1111/jbi.12841/abstract).

Holstein, N., and M.  Weigend. 2016. ?Lectotypifications and nomenclatural notes in the Boraginaceae s.str. for the Flora of Ecuador?. Phytotaxa 278(1):73. Retrieved  (http://biotaxa.org/Phytotaxa/article/view/phytotaxa.278.1.9).

Chacón, J. et al. 2016. ?The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera?. Taxon 65(3):523?546. Retrieved  (http://www.ingentaconnect.com/content/iapt/tax/2016/00000065/00000003/art00007).

Holstein, N., and M.  Weigend. 2015. ?(2388) Proposal to reject the name Myosotis collina (Boraginaceae)?. Taxon 64(5):1058?1059.

Gottschling, M., N.  Diane, H. H.  Hilger, and M.  Weigend. 2004. ?Testing hypotheses on disjunctions present in the primarily woody Boraginales: Ehretiaceae, Cordiaceae, and Heliotropiaceae, inferred from ITS1 sequence data?. Int. J. Plant Sci. 165:S123?S135.

Hilger, H. H. et al. 2005. ?The {Euro+Med} treatment of Boraginaceae in Willdenowia 34 - a response?. Willdenowia 35:43?48.

Gottschling, M., J. S.  Miller, M.  Weigend, and H. H.  Hilger. 2005. ?Congruence of a phylogeny of Cordiaceae (Boraginales) inferred from {ITS1} sequence data with morphology, ecology, and biogeography?. 92:425?437.

Weigend, M., M.  Gottschling, F.  Selvi, and H. H.  Hilger. 2010. ?Fossil and extant Western Hemisphere Boragineae, and the polyphyly of "Trigonotideae" Riedl (Boraginaceae: Boraginoideae)?. Systematic Botany 35(2):409 - 419. Retrieved  (http://www.bioone.org/doi/abs/10.1600/036364410X518874).

Weigend, M., M.  Gottschling, H. H.  Hilger, and N. M.  Nürk. 2010. ?Five new species of Lithospermum L. (Boraginaceae tribe Lithospermeae) in Andean South America: Another radiation in the Amotape-Huancabamba zone?. Taxon 59(4):1161 - 1179. Retrieved  (http://www.ingentaconnect.com/content/iapt/tax/2010/00000059/00000004/art00015).

Weigend, M., and H. H.  Hilger. 2010. ?Codonaceae ? a newly required family name in Boraginales?. Phytotaxa 10:26 - 30.

Weigend, M., M.  Gottschling, F.  Selvi, and H. H.  Hilger. 2009. ?Marbleseeds are gromwells - Systematics and evolution of Lithospermum and allies (Boraginaceae tribe Lithospermeae) based on molecular and morphological data?. Molecular Phylogenetics and Evolution 52(3):755 - 768. Retrieved  (http://www.sciencedirect.com/science/article/B6WNH-4WBK7BK-3/2/5ef424fa3684d5c985634011154460d5).

Thomas, D. C., M.  Weigend, and H. H.  Hilger. 2008. ?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?. Taxon 57(1):79 - 97.

Weigend, M., F.  Luebert, F.  Selvi, G.  Brokamp, and H. H.  Hilger. 2013. ?Multiple origins for Hound?s tongues (Cynoglossum L.) and Navel seeds (Omphalodes Mill.) ? The phylogeny of the borage family (Boraginaceae s.str.)?. Molecular Phylogenetics and Evolution 68(3):604 - 618. Retrieved  (http://www.sciencedirect.com/science/article/pii/S1055790313001590).

Luebert, F., and M.  Weigend. 2012. ?Three new species of Heliotropium sect. Heliothamnus (Heliotropiaceae) from Peru?. Phytotaxa 49:35 - 44.

Luebert, F., H. H.  Hilger, and M.  Weigend. 2011. ?Diversification in the Andes: Age and origins of South American Heliotropium lineages (Heliotropiaceae, Boraginales)?. Molecular Phylogenetics and Evolution 61(1):90 - 102. Retrieved  (http://dx.doi.org/10.1016/j.ympev.2011.06.001).

Luebert, F., G.  Brokamp, J.  Wen, M.  Weigend, and H. H.  Hilger. 2011. ?Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae)?. Taxon 60(3):663 - 680. Retrieved  (http://www.ingentaconnect.com/content/iapt/tax/2011/00000060/00000003/art00004).

Luebert, F., M.  Weigend, and H. H.  Hilger. 2010. ?Epitypification of Heliotropium arborescens L. (Heliotropiaceae)?. Taxon 59(4):1263 - 1266. Retrieved  (http://www.ingentaconnect.com/content/iapt/tax/2010/00000059/00000004/art00023).

Weigend, M. et al. 2014. ?From capsules to nutlets ? Phylogenetic relationships in the Boraginales?. Cladistics 30(5):508-518. Retrieved  (http://onlinelibrary.wiley.com/doi/10.1111/cla.12061/abstract).