紫堇科二新种

Two new species of Fumariaceae

该文描述了紫堇科二新种:(1)自云南省发现的紫堇科紫堇属一新种,宽鳞紫堇。此新种与波密紫堇相近似,与后者的区别在于本新种的根状茎鳞片半透明,具三条脉,茎无叶,外花瓣无鸡冠状突起,雄蕊束具2花药,花丝条形,无脉,子房宽条形。(2)自黑龙江省发现的紫堇科紫堇属一新种,鹤岗延胡索。此种与新疆元胡相似,但本种叶的小叶多在顶端,具1~5牙齿,花序苞片有3~5小裂片,上花瓣及其瓣片和距均较小,蜜腺呈狭卵球形,弯曲,顶端尖锐而与新疆元胡相区别。

Two new species of Fumariaceae are described in this paper：（1） A species of the genus Corydalis（ Fumariaceae）,C. latilepidota,is described as new from Yunnan Province. It is related to C. pseudoadoxa C. Y. Wu H. Chuang,differing in its semi-hyaline,trinerved scales of rhizome,leafless stem,uncrested outer petals,stamen bundle with two anthers,linear and nerveless filament,and broadly linear ovary.（2） A species of the genus Corydalis（ Fumariaceae）,C. hegangensis,is described as new from Heilongjiang Province. It is similar to C. glaucescens Regel,differing in its usually apically 1-5-dentate leaflets,3-5-lobutale bracts,smaller upper petal with shorter limb and shorter spur,and narrowly and curvedly ovoid nectary.