| Two New Lactones with Mosquito Larvicidal Activity from Three Hortonia Species R Ratnayake, V Karunaratne, BM Ratnayake Bandara, V Kumar, ... Journal of Natural Products 64 (3), 376-378, 2001 | 61 | 2001 |
| Hortonones A to C, Hydroazulenones from the Genus Hortonia G Carr, DE Williams, R Ratnayake, R Bandara, S Wijesundara, T Tarling, ... Journal of Natural Products 75 (6), 1189-1191, 2012 | 14 | 2012 |
| Four new butanolide derivatives from Hortonia, a genus endemic to Sri Lanka R Ratnayake, BMR Bandara, DSA Wijesundara, G Carr, RJ Andersen, ... Journal of Chemical Research 2008 (3), 134-136, 2008 | 10 | 2008 |
| Complete 2D NMR assignment and antifungal activity of ishwarane isolated from Hortonia, a genus endemic to Sri Lanka R Ratnayake, S Jayasinghe, R Bandara, RJ Andersen, V Karunaratne National Science Foundation: Colombo, 2008 | 8 | 2008 |
| Chemistry and bioactivity of the genus Hortonia R Ratnayake, BMR Bandara, DSA Wijesundara, JK MacLeod, ... Natural Products Research 22, 1393-1402, 2008 | 6 | 2008 |
| Evaluation of species limits of Hortonia by DNA barcoding S Rajapakse, P Iddamalgoda, R Ratnayake, DSA Wijesundara, ... National Science Foundation: Colombo, 2012 | 3 | 2012 |
| Hortonia angustifolia does not contain DPPH sensitive antioxidant alkaloids D Perera, R Ratnayake, DN Karunaratne, BM Ratnayake, ... University of Peradeniya, 2009 | 3 | 2009 |
| Novel epoxy butenolides from the genus Hortonia R Ratnayake, S Gunasekera, D Williams, R Andersen, V Karunaratne Ceylon Journal of Science 48 (1), 97-100, 2019 | 2 | 2019 |
| A novel Tetracyclic Sesquiterpene from the Genus Hortonia R Ratnayake, N Wikramratne Ceylon J. Sci 46, 115-118, 2017 | 2 | 2017 |
| Antioxidant acitivity and a new butanolide from the primitive endemic genus Hortonia R Ratnayake, D Perera, DN Karunaratne, DSA Wijesundara, G Carr, ... NSF: Colombo, 2014 | 1 | 2014 |
| Bioactivity and chemistry of the genus Hortonia R Ratnayake, BM Ratnayake Bandara, S Wijesundara, JK Macleod, ... Natural Product Research 22 (16), 1393-1402, 2008 | 1 | 2008 |
| Antioxidant activity and a new butanolide from the primitive endemic genus Hortonia R Ratnayake, D Perera, DN Karunaratne, DSA Wijesundara, G Carr, ... Journal of the National Science Foundation of Sri Lanka 42 (3), 2014 | | 2014 |
| Two New Mosquitolarvicidal Compounds from Three Hortonia Species R Ratnayake, V Karunaratne, BMR Bandara, V Kumar | | 2012 |
| Three new Tetrahydoazulene Derivatives and one new Butelolide Derivative from Hortonia, A Genus Endemic to Sri lanka R Ratnayake, S Jayasinghe, BMR Bandara, DSA Wijesundara, G Carr, ... University of Peradeniya, 2009 | | 2009 |
| Differentiation of Hortonia ovalifolia and Hortonia floribunda by DNA barcoding P Iddamalgoda, S Rajapakse, R Ratnayake, BM Ratnayake Bandara, ... Proc., Sri Lanka Assoc. Adv. Sci. 64, 2008 | | 2008 |
| Four new butanolide derivatives from the genus Hortonia R Ratnayake, BM Ratnayake Bandara, DSA Wijesundara, V Karunaratne Proc., Sri Lanka Assoc. Adv. Sci. 64, 2008 | | 2008 |
| Some Studies on the Genus Hortonia EMDK Ekanayake, RMRP Ratnayake, NLVV Karunaratne Proc. University of Peradeniya Annual Research Sessions, p. 146, 2002 | | 2002 |
| New bio active compounds from the genus Hortonia. R Ratnayake, V Karunaratne, BM Ratnayake Bandara, V Kumar Proc., Sri Lanka Assoc. Adv. Sci. 56, pp 244, 2000 | | 2000 |
| Butanolides from the genus Hortonia R Ratnayake, V Karunaratne, BM Ratnayake Bandara, V Kumar, K Jhone, ... Asian Symposium on Medicinal Plants, species and other Natural Products …, 2000 | | 2000 |
| Two New Lactones from three Hortonia species. V Karunaratne, R Ratnayake, BM Ratnayake Bandara, V Kumar Proc., Sri Lanka Assoc. Adv. Sci 55, pp 232-233, 1999 | | 1999 |
