杜鹃花科植物在甘肃省的5个分布新记录种

报道了杜鹃花科植物在甘肃省的分布新记录种4种1亚种,即:三花杜鹃(Rhododendron triflorumHook.f.)、大叶金顶杜鹃(亚种)(Rhododendron faberiHemsl.subsp.prattii(Franch.)Chamb ex Cullen et Chamb.)、毛叶吊钟花(Enkianthus deflexus(Griff.)Schneid.)、四川白珠(Gaultheria cuneata(Rehd.et Wils.)Bean、南烛(Vacciniumbracteatum Thunb.);其中作为热带亚洲和热带美洲间断分布型属的白珠树属GaultheriaL.为甘肃省分布新记录属,对于揭示白龙江下游、白水江流域及南秦岭山地植物区系的热带亲缘及其与横断山脉地区植物区系的相似关系提供了新的佐证.

Five taxa of Ericaceae newly recorded from Gansu Province

Four species and one subspecies of the family Ericaceae were reported as new records in geographical distribution from Gansu Province,viz.:Rhododendron triflorum Hook.f.,Rhododendron faberi Hemsl.subsp.prattii(Franch.) Chamb ex Cullen et Chamb.,Enkianthus deflexus(Griff.) Schneid.,Gaultheria cuneata(Rehd.et Wils.)Bean,Vaccinium bracteatum Thunb.Among which the genus Gaultheria L.,as one of the distribution pattern genera to the Trop.Asia & Trop.Amer.adjuncted,was recognized as a newly recorded genus in Gansu,as a new evidence,it has contributed to reveal the relation of the flora of lower reaches of the Bailong River,the Baishui River and the Southern Qin Mountains to the tropical flora and the floristic similarity of this area to the Hengduan Mountains Region.