•Arcila-Pulgarín J, Buhr L, Bleiholder H, Hack H, Meier U and Wicke H (2002) Application of the extended BBCH scale for the description of the growth stages of coffee (Coffea spp.). Annals of Applied Biology 141/1, 19–27

•Baumann TW and Wanner H (1972) Untersuchungen über den Transport von Kaffein in der Kaffeepflanze (Coffea arabica). Planta 108, 11–20 ☞ PDF

•Baumann TW and Gabriel H (1984) Metabolism and Excretion of Caffeine during Germination of Coffea arabica L. Plant & Cell Physiol. 25(8): 1431-1436 (1984) ☞ PDF

•Baumann TW, Schulthess BH and Hänni K (1995) Guaraná (Paullinia cupana) rewards seed dispersers without intoxicating them by caffeine. Phytochemsitry 39/5, 1063–1070

•Baumann TW (2010) Koffein. Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich 155/1-2, 1–11

•Baumann TW, Dornelas MC, Frungillo ML, and Mazzafera P (2010) A ciência e Goethe: Cafeína e flores. Cienc. Cult. 62/1, 56–59 ☞ PDF

•Charrier A and Berthaud J (1975) Variation de la teneur en caféine dans le genre Coffea. Café Cacao Thé 19, 251–264

•Davis AP, Govaerts R, Bridson DM, Ruhsam M, Moat J and Brummitt NA (2009) A global assessment of distribution, diversity, endemism, and taxonomic effort in the Rubiaceae. Annals of the Missouri Botanical Garden 96/1, 68–78

•Davis AP (2011) Psilanthus mannii, the type species of Psilanthus, transferred to Coffea. Nordic Journal of Botany 29, 471–472

•Ducke A (1937) Diversidade dos Guaranás. Rodriguésia 3/10, 155–156 & 3 plates

•DuPasquier PA (1908) Beiträge zur Kenntnis des Thees. Inaugural-Dissertation der Mathematisch-naturwissenschaftlichen Sektion der Hohen philosophischen Fakultät, Universität Zürich.

•Erickson HT, Corrêa MPF and Escobar JR (1984) Guaraná (Paullinia cupana) as a commercial crop in Brazilian Amazonia. Econ. Bot. 38/3, 273–286

•Fischer E (1897) Ueber die Constitution des Caffeins, Xanthins, Hypoxanthins und verwandter Basen. Chem. Ber. 30, 549–573

•Fischer E (1922) Aus meinem Leben. M. Bergmann (ed), Springer Verlag, Berlin. http://www.archive.org/stream/ausmeinemleben00fiscuoft#page/n7/mode/2up

•Fischer E and Ach L (1895) Synthese des Caffeins. Ber. Dtsch. Chem. Ges. 28, 3135–3143

•Gonçalves JRC (1971) A cultura do Guaraná. Instituto de Pesquisas e Experimentação Agro-pecuárias do Norte (IPEAN), Belèm

•Henman AR (1982) Guaraná (Paullinia cupana var. sorbilis): Ecological and social perspectives on an economic plant of the central Amazon basin. J. Ethnopharmacol. 6, 311-338

•Hollingsworth RG, Armstrong JW and Campbell E (2002) Caffeine as a repellent for slugs and snails. Nature 417/6892, 915–916

•Hollingsworth RG, Armstrong JW and Campbell E (2003) Caffeine as a novel toxicant for slugs and snails. Annals of Applied Biology 142/1, 91–97

•Honma D, Tagashira M, Kanda T and Maeda-Yamamoto M (2010) Identifications of inhibitors of IgE production by human lymphocytes isolated from 'Cha Chuukanbohon Nou 6' tea leaves. Journal of the Science of Food and Agriculture 90/1, 168–174

•Keller H, Wanner H and Baumann TW (1972) Kaffeinsynthese in Früchten und Gewebekulturen von Coffea arabica. Planta 108, 339–350

•Maier HG and Weidner M (2000) Minor-Alkaloide in coffeinhaltigen Genussmitteln. Deutsche Lebensmittel-Rundschau 96/10, 363–368

•Marx F, Pfeilsticker K and Maia JGS (1985) Zur Analytik von Guarana (Paullinia cupana var. sorbilis).1. Mitteilung: HPLC-Bestimmung von Coffein, Theobromin und Theophyllin in Guaranasamen. Deutsche Lebensmittel Rundschau 81/12, 390–392

•Medicus L (1875) Zur Constitution der Harnsäuregruppe. Annalen der Pharmacie 175, 230-251

•Ming TL and Bartholomew B (2007) Theaceae in Flora of China 12, 366–478; www.eFloras.org

•Nagata T and Sakai S (1985) Purine base pattern of Camellia irrawadiensis. Phytochemistry 24/10, 2271–2272

•Ogino A, Yoshida K, Taniguchi F, Omae H, Nesumi A, Saba T, Takyu T and Takeda Y (2005) New parental line 'Cha Chuukanbohon Nou 6' for anthocyanin-rich tea. Yasai Chagyo Kenkyujo Kenkyu Hokoku 4, 77–85

•Parameswaran PS, Naik CG, Govenkar M and Hegde VR (2002) Secondary metabolites from the Gorgonian Echinomuraceae [Echinomuricea] splendens (Thomson and Simson). Indian Journal of Chemistry Section B–Organic Chemistry Including Medicinal Chemistry 41/5, 1093-1096

•Phillips DA, Joseph CM, and Maxwell CA (1992) Trigonelline and Stachydrine Released from Alfalfa Seeds Activate NodD2 Protein in Rhizobium meliloti. Plant Physiol. 99, 1526-1531 ☞ PDF

•Schimpl FC, da Silva JF, Gonçalves JFC and Mazzafera P (2013) Guaraná: Revisiting a highly caffeinated plant from the Amazon. J. Ethnopharmacol. 150, 14–31

•Sorek H, Rudi A, Benayahu Y, Ben-Califa N, Neumann D and Kashman Y (2007) Nuttingins A-F and malonganenones D-H, tetraprenylated alkaloids from the Tanzanian gorgonian Euplexaura nuttingi. J Nat Prod 70/7, 1104–1109

•Sprecher von Bernegg A (1934) Tropische und subtropische Weltwirtschaftspflanzen (Ferdinand Enke, Stuttgart). III. Teil Genusspflanzen, 2. Band Kaffee und Guaraná. p 5.

•Van der Pijl, L. (1982) Principles of Dispersal in Higher Plants. Springer-Verlag, Berlin

•Vijayan K, Zhang WJ and Tsou CH (2009) Molecular taxonomy of Camellia (Theaceae) inferred from nrITS sequences. Am. J. Bot. 96, 1348–1360

•Weidner M (1999) Purinalkaloide und Methylharnsäuren im Kaffee. PhD Thesis TU Braunschweig (Institute of Food Chemistry, HG Maier)

•Yagi K, Goto K and Nanjo F (2009) Identification of a major polyphenol and polyphenolic composition in leaves of Camellia irrawadiensis. Chemical & Pharmaceutical Bulletin 57/11, 1284–1288

•Yang JB, Li HT, Zhao Y and Yang SX (2009) Isolation and characterization of 15 microsatellite markers from wild tea plant (Camellia taliensis) using FIASCO method. Conservation Genetics 10/5, 1621–1623

literature