hybrids are placed in Group 12, the Kaufmanniana Group, by the Royal Horticultural Society. Their leaves often have dashes and streaks of purple, which show the influence of Tulipa greigii in the breeding programmes. It was given the First Class Certification by the Royal Horticultural Society in 1897. The cultivars 'Ancilla', 'Early Harvest', 'Showwinner' (deep red) and 'Stresa' have gained the Royal Horticultural Society's Award of Garden Merit. Two other Group 12 cultivars are listed by the RHS as gaining the Award of Garden Merit, 'Alfred Cortot' and 'Glück'. Other known hybrids include 'Heart's Delight', a soft pink with an orange-yellow eye, the clear yellow 'Chopin' and white 'Concerto'. In America, common cultivars include; 'Ancilla' soft pink, red and white flowers, 'Johann Strauss' rosy red and sulfur yellow blooms and 'Stresa' golden yellow with carmine red flowers. Culture In the 1960s, a postage stamp in CCCP (Russia), was issued with an image of the tulip. Then in 1993, a postage stamp in Uzbekistan, within the Flowers series was issued with an image of the tulip. References Other sources Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource) URL: www.skud.info Christenhusz, J. M.. et al. 2013. Tiptoe through the tulips - cultural history, molecular phylogenetics and classification of Tulipa (Liliaceae). Bot. J. Linn. Soc. 172:280-328. Encke, F. et al. 1993. Zander: Handwörterbuch der Pflanzennamen, 14. Auflage Groth, D. 2005. pers. comm. Note: re. Brazilian common names Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening Komarov, V. L. et al., eds. 1934–1964. Flora SSSR. Liberty Hyde Bailey Hortorium. 1976. Hortus third. Marasek-Ciolakowska, A. et al. 2012. Breeding and cytogenetics in the genus Tulipa. Floriculture, Ornamental and plant biotechnology: Advances and topical issues. Volumes I-V. Global Science Books., London. 6(Special issue):90-97. Mathew, B. F. 1996. pers. comm. Note: re. common names Raamsdonk, L. W. D. van & T. de Vries. 1995. Species relationships and taxonomy in Tulipa subg. Tulipa (Liliaceae). Pl. Syst. Evol. 195:41. Walters, S. M. et al., eds. 1986–2000. European garden flora. kaufmanniana Plants described in 1877 Flora of Tajikistan Flora of Kyrgyzstan Flora of Kazakhstan