裘氏石楠,中国蔷薇科一新种——兼论毛瓣石楠的分类地位  

Photinia chiuana(Rosacea),a New Species from China——with Status Confirmation of Photinia lasiopetala

作　　者：陈征海 陈林 陈锋[1] 谢文远[1] 金孝锋[2] CHEN Zhenghai;CHEN Lin;CHEN Feng;XIE Wenyuan;JIN Xiaofeng(Monitoring Centre of Forest Resources of Zhejiang,Hangzhou 310020,China;College of Life and Environmental Sciences,Hangzhou Normal University,Hangzhou 311121,China)

机构地区：[1]浙江省森林资源监测中心,浙江杭州310020 [2]杭州师范大学生命与环境科学学院,浙江杭州311121

出　　处：《杭州师范大学学报（自然科学版）》2021年第1期29-33,40,共6页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：浙江省第二次重点保护野生植物资源调查专项项目(335006-2013-0001);浙江省野生植物资源调查、建档、编撰及《浙江植物志》(第二版)编著专项项目(335010-2015-0005)。

摘　　要：基于文献查阅、模式标本考证和形态比较,恢复了毛瓣石楠的种级地位.描述了采自浙江衢州蔷薇科石楠属的一新种——裘氏石楠Photinia chiuana Z.H.Chen,F.Chen et X.F.Jin,其接近于毛瓣石楠P.lasiopetala,不同之处在于本新种为乔木,高可达15 m,叶片狭椭圆形或长圆形,先端渐尖,5~12(~14.5)cm×2~4.3 cm;叶柄长1~3 cm,无毛,有时近顶端有1~2齿;花序宽6~16.5 cm,分枝松散,无毛;花直径8~10 mm,被丝托外面无毛,萼片外面无毛,内面被白色绒毛,花瓣长3.5~4 mm;果实长圆状椭球形,6~7 mm×5.5~6.5 mm.主要分布于海拔400 m以下的低山丘陵地区.Basing on the literature survey,examination of type specimens and morphological comparison,the specific rank of P.lasiopetala was confirmed and restored.Photinia chiuana Z.H.Chen,F.Chen et X.F.Jin,a new species is described with illustration.It differs from P.lasiopetala in having plants 15 m tall;leaf blade usually narrowly elliptic or oblong,apex acuminate,5~12(~14.5)cm×2~4.3 cm;petiole 1~3 cm,glabrous,rarely 1 or 2 toothed near tip;compound corymbs 6~16.5 cm in width,with loose rachis and branches;flowers 8~10 mm in diam.,hypanthium abaxially glabrous,sepals abaxially glabrous,adaxially tomentose,petals 3.5~4 mm in diam.;pome oblong-ellipsoid or subglobose,6~7 mm×5.5~6.5 mm.The new species is mainly distributed in lower mountainous regions below the elevation of 400 m.

关 键 词：裘氏石楠 新种 毛瓣石楠 分类订正 石楠属 蔷薇科 中国 

分 类 号：Q949[生物学—植物学]