Literature

Authors	Year	Title
D. N. Gibson	1970	Boraginaceae in Flora of Guatemala - part IX, numbers 1 and 2.
M. Gottschling, Diane, N., Hilger, H. H., Weigend, M.	2004	Testing hypotheses on disjunctions present in the Primarily Woody Boraginales: Ehretiaceae, Cordiaceae, and Heliotropiaceae, inferred from ITS1 sequence data
M. Gottschling, Hilger, H. H., Wolf, M., Diane, N.	2001	Secondary structure of the ITS1 transcript and its application in a reconstruction of the phylogeny of Boraginales
A. Graham, Jarzen D. M.	1969	Studies in neotropical paleobotany. I. The Oligocene communities of Puerto Rico
E. F. Guimarães, Barroso, G. M., Falcão-Ichaso, C. L., A. Bastos, R.	1971	Flora da Guanabara: Flacourtiaceae, Olacaceae, Boraginaceae
L. C. Higgins	1979	Boraginaceae of the southwestern United States
H. H. Hilger	1992	Morphology of Heliotropium (Boraginaceae) dispersal units
H. H. Hilger	1989	Flower and fruit development in the Macaronesian endemic Ceballosia fruticosa (syn. Messerschmidia fruticosa, Boraginaceae, Heliotropioideae)
H. H. Hilger	1987	Fruchtbiologische Untersuchungen an Heliotropioideae (Boraginaceae). I. Die Ontogenie der monospermen Früchte von Heliotropium supinum L.
H. H. Hilger, Diane N.	2003	A systematic analysis of Heliotropiaceae (Boraginales) based on trnL and ITS1 sequence data
H. H. Hilger, Gottschling, M., Selvi, F., Bigazzi, M., Långström, E., Zippel, E., Diane, N., Weigend, M.	2005	The Euro+Med treatment of Boraginaceae in Willdenowia 34 – a response
H. H. Hilger, Zippel E.	2001	"Studies in the Boraginaceae": An index to the publications of Ivan M. Johnston dealing with the Borage family
S. Ibáñez, Luebert, F., Gómez, M.	2011	Primer registro de Heliotropium amplexicaule (Heliotropiaceae) en Chile
J. Jeiter, Staedler, Y. M., Schönenberger, J., Weigend, M., Luebert, F.	2018	Gynoecium and fruit development in Heliotropium sect. Heliothamnus (Heliotropiaceae)
I. M. Johnston	1959	Some noteworthy American Borages
I. M. Johnston	1957	Boraginaceae. in: Steyermark. J. A. and collaborators: Contributions to the flora of Venezuela
I. M. Johnston	1951	Studies in the Boraginaceae XX. Representatives of three subfamilies in eastern Asia
I. M. Johnston	1949	Studies in the Boraginaceae XVIII. Boraginaceae of the southern West Indies
I. M. Johnston	1939	Studies in the Boraginaceae, XIII. New or otherwise noteworthy species, chiefly from western United States
I. M. Johnston	1937	Studies in the Boraginaceae XII. 2. Novelties and critical notes
I. M. Johnston	1935	Studies in the Boraginaceae XI. 1. The species of Tournefortia and Messerschmidia in the Old World
I. M. Johnston	1935	Studies in the Boraginaceae X. The Boraginaceae of Northeastern South America
I. M. Johnston	1932	New records for the flora of the Nitrate Coast
I. M. Johnston	1930	Studies in the Boraginaceae VIII. I. Observations on the species of Cordia and Tournefortia known from Brazil. 3. Treatment of Tournefortia
I. M. Johnston	1929	The coastal flora of the departments of Chañaral and Taltal
I. M. Johnston	1929	The flora of the Nitrate Coast
I. M. Johnston	1928	Studies in the Boraginaceae VII. The South American species of Heliotropium
I. Murray Johnston	1931	The flora of the Revillagigedo Islands
T. Fathima Khaleel	1978	Embryology of Heliotropium scabrum and H. strigosum (Boraginaceae)
F. Klotzsch	1852	Heliotropium submolle, eine neue Art aus dem Freistaate Ecuador
W. H. Lack	1979	Die südamerikanischen Sammlungen von H. Ruiz und Mitarbeitern im Botanischen Museum Berlin-Dahlem
J. Ruth Lawrence	1937	A correlation of the taxonomy and the floral anatomy of certain of the Boraginaceae
J. Georg Chri Lehmann	1829	Pugillus plantarum, in Botanico hamburgensium horto occurrentium
A. Lingelsheim, Pax, F., Winkler, H.	1909	Plantae Bolivianae. III
H. A. Liogier	1973	Novitates Antillanae. VI (1)
D. H. Lorence, Wagner W. L.	2015	Heliotropium (Boraginaceae) in the Marquesas Islands (French Polynesia) with description of a new species
F. Luebert	2017	Los géneros de Heliotropiaceae en Argentina
F. Luebert	2013	A revision of Heliotropium sect. Cochranea (Heliotropiaceae)
F. Luebert, Brokamp, G., Wen, J., Weigend, M., Hilger, H. H.	2011	Phylogenetic relationships and morphological diversity in Neotropical Heliotropium (Heliotropiaceae)
F. Luebert, Frohlich M. W.	2016	Four new combinations in Argentinian Heliotropiaceae
F. Luebert, Hilger H. H.	2014	Typification of Heliotropium and Tournefortia (Heliotropiaceae) species described by Ruiz and Pavón
F. Luebert, Hilger, H. H., Weigend, M.	2011	Diversification in the Andes: Age and origins of South American Heliotropium lineages (Heliotropiaceae, Boraginales)
F. Luebert, Jacobs, P., Hilger, H. H., Muller, L. A. H.	2014	Evidence for nonallopatric speciation among closely related sympatric Heliotropium species in the Atacama Desert
F. Luebert, Pinto R.	2004	Nota sobre la presencia de Heliotropium krauseanum Fedde (Heliotropiaceae) en Chile
F. Luebert, Muñoz-Schick M.	2014	Heliotropium geissei (Heliotropiaceae): nuevos registros, tipificación, posición sistemática y estado de conservación
F. Luebert, Weigend M.	2012	Three new species of Heliotropium sect. Heliothamnus (Heliotropiaceae) from Peru
F. Luebert, Weigend, M., Hilger, H. H.	2010	Epitypification of Heliotropium arborescens L. (Heliotropiaceae)
F. Luebert, Wen J.	2008	Phylogenetic analysis and evolutionary diversification of Heliotropium sect. Cochranea (Heliotropiaceae) in the Atacama Desert
C. L. Lundell	1942	Undescribed plants from Mexico and Central America
T. Luque	1996	Karyological studies on Spanish Boraginaceae. VII. Heliotropium L.

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