河南玉兰属二新种

Two New Species of Yulania Spach from Henan Province

描述了河南木兰科Magnoliaceae玉兰属Yulania Spach的两个新品种,即:莓蕊玉兰(Yulania fragar-igynandria T.B.Zhao Z.X.Chen et H.T.Dai,sp.Nov)和大别玉兰Y.dabieshanensis T.B.Zhao Z.X.Chenet H.T.Dai,sp.nov.ined.莓蕊玉兰叶倒卵圆状椭圆形,背面灰绿色,基部心形、圆形,稀楔形.玉蕾顶生,或腋生,大,陀螺状,或卵球状(基部短柱状,长8～12 mm),长2.0～3.0 cm,径2.0～2.5 cm;芽鳞状托叶花前脱落.单花具花被片9～18枚,花瓣状,花被片外面中部以下中间亮紫红色;有时具1～3枚肉质、披针形、亮紫红色花被片.雌雄蕊群大,草莓状,径1.8～2.3 cm,有时具2～5枚雌蕊群而特殊.大别玉兰叶椭圆形及菱萼状—卵圆形.有4种花型.

Two new species of the genus Yulania Spach of Magnoliaceae from Henan Province were described. They are Y. fragarigynandria T. B. Zhao, Z. X. Chen et H. T. Dai, sp. nov. and Y. dabieshanensis T. B. Zhao Z. X. Chen et H. T. Dai, sp. nov. ined. The leaves of Y. fragarigynandria T. B. Zhao, Z. X. Chen et J. Zhao,sp. nov. are similar with Y. cylindrica（Wils. ）D. L. Fu leaves with difference as follows： Yulania-alabastra terminal or axillary, Yulania-alabastra is big, and it is turbinate or ovoid-ellipsoid （the base is short columnar, length 8 - 12 mm ）. Single flower with tepals 9 - 18 pieces, petaliform, on the outside of tepals the place where in the central below the middle of it is bright aubergine ; sometimes with 1 - 3 pieces tepals, which especial tepals are fleshy, lanceolate, bright aubergine ; gynandrium is big, the type is strawberry shape, the diameter isl. 8 - 2.3 cm, specifically, some- times there are 2-5 pieces gynoecium in it.. The morphological characteristics of the Y. dabieshanensis T. B. Zhao et Z. X. Chen, sp. nov. is that leaves is ellipse or sepaloid-ovate. Its flowers have 4 shapes.