中国东北晚白垩世酢酱草属(酢酱草科)一新种:嘉荫酢酱草(英文)  

Oxalis jiayinensis, a new species of the Late Cretaceous from Heilongjiang, NE China

作　　者：冯广平[1] 刘长江[1] 宋书银[1] 马清温[2] 

机构地区：[1]中国科学院植物研究所 [2]聊城师范学院生物系

出　　处：《植物分类学报》1999年第3期264-268,共5页Acta Phytotaxonomica Sinica

摘　　要：本文描述了发现于中国黑龙江省嘉荫县晚白垩世（土仑期至赛诺期）的酢酱草科酢酱草属新种ＯｘａｌｉｓｊｉａｙｉｎｅｎｓｉｓＦｅｎｇ，Ｌｉｕ，ＳｏｎｇｅｔＭａ；炭化种子长约１ｍｍ，宽不足１ｍｍ；新月形，两端钝；表面具９～１０条横脊；种皮石细胞等轴、细胞壁明显加厚。Oxalis jiayinensis, sp. nov., is described from the Late Cretaceous (Turonian Senonian) in Jiayin County, Heilongjiang Province, northeastern China. The seed is about 1 mm long, less than 1 mm in diameter, crescentic with obtuse apices and 9～10 transverse ribs. The seed wall is composed of equiaxial, strongly thickened sclereids. The fossil represents the oldest occurrence of the family Oxalidaceae in the world.

关 键 词：酢酱草属 种子 晚白垩世 黑龙江 

分 类 号：Q914.88[天文地球—古生物学与地层学] Q914.653[生物学—古生物学]