浙江大戟科一新种——仙霞岭大戟

Euphorbia xianxialingensis (Euphorbiaceae), a New Species from Zhejiang

摘要: 报导了浙江江山仙霞岭省级自然保护区的大戟科Euphorbiaceae 一新种——仙霞岭大戟Euphorbiaxianxialingensis F.Y.Zhang, W.Y.Xie et Z.H.Chen。该种形态上接近于钩腺大戟E.sieboldiana C.Morren et Decne.，不同之处在于根状茎纤细，直径1 ~ 4 mm，茎紫红色，中上部被柔毛，叶片长3 ~ 7 cm，宽4 ~ 13 mm，背面被长柔毛，叶缘稍反卷，密具不规则的软骨质微齿，总苞叶边缘密具不规则的软骨质微齿，苞叶肾圆形，先端常圆钝，边缘密具不规则的软骨质微齿，腺体两端的角细长，刺状或线状，淡绿色。

Abstract: On July 14, 2015, a new species of Euphorbiaceae, Euphorbia xianxialingensis F.Y.Zhang, W.Y.Xie et Z.H.Chen, was discovered from Jiangshan Xianxialing Provincial Nature.It is similar to E.sieboldiana, but differs in having rhizomes slender, 1- 4 mm in diamater., stems purplish red, pubescent on middle and upper part, leaf blade (3-7) × (0.4-1.3) cm, villosus on abaxial surface, margin slightly revolute, with densely tiny serrulate, primary involucral bracts margin densely tiny serrulate, cyathophylls reniform-rounded, apex usually obtuse, margin densely tiny serrulate, glands yellow-green, 2 horns slender, needle to threadlike, pale green.