浙江东部蔷薇科一新种——华顶悬钩子  

Rubus huadingensis (Rosaceae), a New Species from Eastern Zhejiang

作　　者：张忠钊 陈锋[2] 谢文远[2] 叶文国 陈征海 ZHANG Zhongzhao;CHEN Feng;XIE Wenyuan;YE Wenguo;CHEN Zhenghai(Tiantai Natural Resources and Planning Bureau of Zhejiang,Taizhou 317200,China;Forest Resources Monitoring Centre of Zhejiang Province,Hangzhou 310020,China)

机构地区：[1]天台县自然资源和规划局,浙江台州317200 [2]浙江省森林资源监测中心,浙江杭州310020

出　　处：《杭州师范大学学报（自然科学版）》2023年第6期611-615,共5页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：浙江省植物资源调查、建档、编撰项目(335010-2015-0005);天台县野生植物本底调查项目(TCCG-2021-033)。

摘　　要：描述了采自浙江东部蔷薇科Rosaceae悬钩子属Rubus L.一新种——华顶悬钩子R.huadingensis Z.H. Chen, W.Y. Xie et F. Chen,并附有线描图.新种形态与日本特有种八丈岛悬钩子R.nishimuranus Koidz.相似,但新种小枝、叶片两面、叶柄、托叶背面、花梗、花萼均被红棕色腺毛和白色柔毛;掌状3出复叶的顶生小叶片菱状卵形,长3~6(9.5) cm,宽1.5~3.5(5) cm,先端急尖,通常无柄;叶柄长2~3.5 cm;萼片狭三角状披针形,先端细长尾尖;花直径2.5~3 cm.八丈岛悬钩子植株被短柔毛,无腺毛;掌状3出复叶的顶生小叶片椭圆形或卵状椭圆形,长达17 cm,宽7.5 cm,先端渐尖,通常具柄;叶柄长达7.5 cm;萼片卵状披针形,先端短渐尖或尾状渐尖;花直径3~3.5 cm.Rubus huadingensis Z.H.Chen,W.Y.Xie et F.Chen,a new species of Rosaceae from eastern Zhejiang Province,is described with illustration.It is similar to R.nishimuranus Koidz.in morphology,an endemic species of Japanese,but differs in having branchlets,both surfaces of leaves,petioles,stipules abaxially,pedicels and calyx with red-brown glandular hairs and white pubescence.The terminal leaflets of palmately compound leaves are rhombic-ovate,3-6(9.5)cm long,1.5-3.5(5)cm wide,with cute apex and usually sessile.Petiole is 2-3.5 cm long,and sepals are narrowly triangular lanceolate with apex long slender caudate.Flowers are 2.5-3 cm in diameter.In comparison,R.nishimuranus is pubescent and without glandular hairs.The terminal leaflets of palmately 3-lobed compound leaves are elliptical or ovoid in shape,17 cm long and 7.5 cm wide,with gradually pointed tips and petiole.The petiole is up to 7.5 cm long,sepals ovate-lanceolate,apex short acuminate or caudal acuminate,and flowers are 3-3.5 cm in diam.

关 键 词：蔷薇科 华顶悬钩子 新种 浙江 中国东部 

分 类 号：Q949.751.8[生物学—植物学]