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

Cecchi, L., A.  Coppi, H. H.  Hilger, and F.  Selvi. 2014. ?Non-monophyly of Buglossoides (Boraginaceae: Lithospermeae): Phylogenetic and morphological evidence for the expansion of Glandora and reappraisal of Aegonychon?. Taxon 63(5).

Buys, M., and H. H.  Hilger. 2003. ?Boraginaceae cymes are exclusively scorpioid and not helicoid?. Taxon 52:719?724.

Hilger, H. H., and U. R.  Böhle. 2000. ?Pontechium: a new genus distinct from Echium and Lobostemon (Boraginaceae)?. Taxon 49:737?746.

Gottschling, M., and H. H.  Hilger. 2004. ?The systematic position of Ehretia cortesia nom. nov. (= Cortesia cuneifolia: Ehretiaceae, Boraginales) inferred from molecular and morphological data?. Taxon 53:919?923.

Greuter, W., V.  Stier, and H. H.  Hilger. 2014. ?Proposal to conserve the name Omphalodes verna against Omphalodes omphaloides (Boraginaceae)?. Taxon 63(2):435.

Cecchi, L., and F.  Selvi. 2009. ?Phylogenetic relationships of the monotypic genera Halacsya and Paramoltkia and the origins of serpentine adaptation in circum- mediterranean Lithospermeae (Boraginaceae): insights from ITS and matK DNA sequences?. Taxon 58 (3). Retrieved  ( http://www.jstor.org/stable/27756939).

Selvi, F., A.  Coppi, and L.  Cecchi. 2011. ?High epizoochorous specialization and low DNA sequence divergence in Mediterranean Cynoglossum (Boraginaceae): Evidence from fruit traits and ITS region?. Taxon 60(4). Retrieved  (http://www.ingentaconnect.com/content/iapt/tax/2011/00000060/00000004/art00003).

Selvi, F., L.  Cecchi, and A.  Coppi. 2009. ?Phylogeny, karyotype evolution and taxonomy of Cerinthe L. (Boraginaceae)?. Taxon 58(4). Retrieved  (http://www.jstor.org/stable/27757019).

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).

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.

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).