关键词: 兜兰, 杂交, 品种

Abstract: ‘Yu Ying’is a new Paphiopedilum cultivar developed by crossing two excellent strains of female parent Paph. concolor and male parent Paph. primulinum. It is a novel potted orchid cultivar belonging to the spotted-leaf group of slipper orchids，and exhibits strong growth. The leaf is rectangular round to narrowly elliptic，green in color with a deep green interlaced network pattern. The average length and width of the leaf are 13.1 cm and 3.3 cm. The peduncle is deep purple，with an average length of 11.0 cm and an average of 1.9 flowers. The average horizontal and vertical diameters of the flower are 8.5 cm and 8.7 cm，respectively. The dorsal sepal is white with green longitudinal veins，with an average length and width of 6.4 cm and 4.7 cm，respectively. The petals are yellowish-white with green veins and purple speckles，with 5.7 cm long and 2.6 cm wide. The labellum is yellow，sack-shaped，and measures 4.5 cm in length and 2.0 cm in width. The staminodes horseshoe is shaped with obcordate with green umbilical protrudes. The flowering period is from April to May，with a lifespan of approximately 45 d per flower.

Key words: Paphiopedilum, hybridazation, cultivar ,