论文部分内容阅读
兰果树 Nyssa sinensis oliver.又叫紫树、宜沙木,我省资兴一带群众称为东瓜泡,属珙桐科,是一种落叶乔木。高可达20米以上,胸径50多厘米或更粗,树冠广卵形,树皮粗糙,灰褐色,片状剥落,幼枝灰绿色,老枝褐色,有皮孔。单叶互生,长椭圆形,长8～15厘米,宽3～6厘米,全缘,边缘内曲,羽状网脉,表面平滑,背面凸起,嫩叶紫褐色。花雌雄同株,聚伞状短总状花序,花萼五裂,裂片小,花瓣5,雄蕊5～10,着生于肉质花盘周围。核果长椭圆形,紫绿色至暗褐色,5月开花,10月果熟。
Blue Nyssa sinensis oliver. Also known as the purple tree, Yi Shamu, Zixing Province, the masses called the East melon bubble, belongs to Davidiaceae, is a deciduous tree. High up to 20 meters above the breast diameter of more than 50 cm or thicker crown broad oval, rough bark, brown, flake peeling, young branches gray-green, old branches brown, lenticels. Single leaf alternate, oblong, 8 to 15 cm long, 3 to 6 cm wide, the edge of the song, pinnate veins, the surface smooth, convex back, young leaves purple brown. Flowers monoecious, cymose short racemes, Calyx cracked, lobes small, petals 5, stamens 5 to 10, was born in the fleshy disk around. Drupe long oval, purple green to dark brown, flowering in May, October fruity.