@article {628,
	title = {Anatom{\'\i}a comparada de la l{\'a}mina foliar de las especies de Heliotropium L. (Boraginaceae) presentes en Venezuela},
	journal = {Interciencia},
	volume = {28},
	year = {2003},
	pages = {68{\textendash}74},
	issn = {0378-1844},
	url = {http://www.redalyc.org/resumen.oa?id=33907702},
	author = {Fari{\~n}a, {\'A}ngel and Arrieche, Dwight and Sucre, Alpidio Boada and Vel{\'a}zquez, Dilia}
}
@article {thulin2003,
	title = {Three new species of Heliotropium (Boraginaceae) from the Horn of Africa region},
	journal = {Nordic Journal of Botany},
	volume = {23},
	number = {5},
	year = {2003},
	pages = {527{\textendash}532},
	issn = {1756-1051},
	doi = {10.1111/j.1756-1051.2003.tb00428.x},
	url = {http://onlinelibrary.wiley.com/doi/10.1111/j.1756-1051.2003.tb00428.x/abstract},
	author = {Thulin, Mats}
}
@article {ariza-espinar2003,
	title = {Una especie de Tournefortia (Boraginaceae) nueva para la flora argentina},
	journal = {Kurtziana},
	volume = {30},
	number = {1-2},
	year = {2003},
	pages = {61{\textendash}63},
	keywords = {Tournefortia breviflora},
	author = {Ariza-Espinar,L.}
}
@article {525,
	title = {Notas sobre Heliotropium krauseanum Fedde, la {\'u}nica especie de Heliotropium sect. Cochranea del Per{\'u} (Heliotropiaceae = Boraginaceae subfam. Heliotropioideae)},
	journal = {Arnaldoa},
	volume = {10},
	year = {2003},
	month = {2003///},
	pages = {61 - 74},
	author = {Weigend, Maximilian and Brokamp, G. and Kirbach, A. and F{\"o}rther, H.}
}
@article {443,
	title = {Heliotropium abbreviatum (Boraginaceae), su hallazgo en Argentina},
	journal = {Kurtziana},
	volume = {30},
	year = {2003},
	month = {2003///},
	pages = {57 - 60},
	author = {di Fulvio, T. E.}
}
@article {445,
	title = {Leaf anatomy and foliar trichomes in Heliotropiaceae and their systematic relevance},
	journal = {Flora},
	volume = {198},
	year = {2003},
	month = {2003///},
	pages = {468 - 485},
	abstract = {Leaf anatomy and the distribution of foliar trichome types of 65 species of Heliotropiaceae have been investigated. The aim was to evaluate the systematic relevance of their diversity as compared to recent findings of systematic relationships within the family. The results of leaf anatomy patterns, especially venation, vascular system, various foliar trichome types, and localization of crystals are of surprisingly high systematic value and prove the actual proposed subdivision of this family based on molecular results. Each main clade identified in the molecular studies is well characterized on the basis of leaf anatomy.},
	isbn = {0367-2530},
	doi = {10.1078/0367-2530-00120},
	url = {http://dx.doi.org/10.1078/0367-2530-00120},
	author = {Diane, N. and Jacob, C. and Hilger, Hartmut H.}
}
@article {430,
	title = {Boraginaceae cymes are exclusively scorpioid and not helicoid},
	journal = {Taxon},
	volume = {52},
	year = {2003},
	month = {2003///},
	pages = {719 - 724},
	abstract = {Boraginaceae have erroneously been associated with helicoid cymes, when upon closer inspection they exclusively possess scorpioid cymes (cincinni). A discussion of the inflorescence structure in Boraginaceae is presented with the help of an overview of monochasial branching systems and a three-dimensional representation thereof. Reasons for the incorrect description of Boraginaceae inflorescences are also provided.},
	url = {http://www.jstor.org/stable/3647346},
	author = {Buys, Matt H. and Hilger, Hartmut H.}
}
@article {416,
	title = {A new species of Heliotropium L. (Boraginaceae) from Madagascar},
	journal = {Adansonia},
	volume = {25},
	year = {2003},
	month = {2003///},
	pages = {115 - 118},
	author = {Miller, J. S.}
}
@article {391,
	title = {A systematic analysis of Heliotropiaceae (Boraginales) based on trnL and ITS1 sequence data},
	journal = {Botanische Jahrb{\"u}cher f{\"u}r Systematik, Pflanzengeschichte und Pflanzengeographie},
	volume = {125},
	year = {2003},
	month = {2003///},
	pages = {19 - 51},
	url = {http://www.schweizerbart.de/papers/pde/detail/125/52666/A_systematic_analysis_of_Heliotropiaceae_Boraginales_based_on_trnL_and_ITS1_sequence_data},
	author = {Hilger, Hartmut H. and Diane, N.}
}
