References
- Fantz , P. R. , Lasseigne , T. and Mays , D. 2003 . Cultivated Dicotyledonous Taxa at the NC State University Herbarium II: Additions to the Collection in 2002. . Vulpia , 2 : 81 – 93 .
- Griffiths , M. 1994 . Index of Garden Plants. , Portland, OR : Timber Press .
- Robson , N. K. B. 1985 . Studies in the Genus Hypericum L. (Guttiferae).. 3. Sections 1. Campylosporus to 6a. Umbraculoides . Bull. Brit. Mus. Nat. His. (Botany) , 12 : 163 – 325 .
- 1999 . The Plant Names Project. International Plant Names Index , Published on the Internet . http://www.ipni.org [accessed 2002]
- Adams , R. P. 2001 . Identification of Essential Oil Components by Gas Chromatography/Mass Spectroscopy. , Carol Stream, IL : Allured Publ. Corp. .
- Davies , N. N. 1990 . Gas Chromatographic Retention Indices of Monoterpenes and Sesquiterpenes on Methyl Silicone and Carbowax 20M Phases. . J. Chromatogr. A , 503 : 1 – 24 .
- Gudzic , B. , Dordevic , S. , Palic , R. and Stojanovic , G. 2001 . Essential Oils of Hypericum olympicum L. and Hypericum perforatum L. . Flav. Fragr. J. , 16 : 201 – 203 .
- Gudzic , B. , Djokovic , D. , Vajs , V. , Palic , R. and Stojanovic , G. 2002 . Composition and Antimicrobial Activity of the Essential Oil of Hypericum maculatum Crantz. . Flav. Fragr. J. , 17 : 392 – 394 .
- Bertoli , A. , Menichini , F. , Mazzetti , M. , Spinelli , G. and Morelli , I. 2003 . Volatile Constituents of the Leaves and Flowers of Hypericum triquetrifolium Turra. . Flav. Fragr. J. , 18 : 91 – 94 .
- Cakir , A. , Kordali , S. , Zengin , H. , Izumi , S. and Hirata , T. 2004 . Composition and Antifungal Activity of Essential Oils Isolated from Hypericum hyssopifolium and. Hypericum heterophyllum . Flav. Fragr. J. , 19 : 62 – 68 .
- Mathis , C. and Ourisson , G. 1964 . Étude chimio-taxonomique du genre. Hypericum. II. Identification de constituants de diverses huiles essentielles d'Hypericum . Phytochemistry , 3 : 115 – 131 .
- Mathis , C. and Ourisson , G. 1964 . Étude chimio-taxonomique du genre Hypericum. IV. Répartition des sesquiterpènes et des alcools monoterpeniques et des aldehydes satures dans les huiles essentielles. d'Hypericum . Phytochemistry , 3 : 377 – 378 .
- Erken , S. , Malyer , H. , Demirci , F. , Demirci , B. and Baser , K. H. C. 2001 . Chemical Investigations on some Hypericum Species Growing in Turkey-I. . Chem. Nat. Compd. , 37 : 434 – 438 .
- Demirci , B. , Baser , K. H. C. , Crockett , S. L. and Khan , I. A. 2005 . Analysis of the Volatile Constituents of Asian Hypericum L. (Clusiaceae, Hyperidoideae) Species. . J. Essent. Oil Res. , 17 : 659 – 663 .
- Orians , C. M. 2000 . The Effects of Hybridization in Plants on Secondary Chemistry: Implications for the Ecology and Evolution of Plant-herbivore Interactions. . Amer. J. Bot. , 87 : 1749 – 1756 .