笔者首次发现了内蒙古霍林河煤田霍林河组 (K 1 h) 茨康类拟刺葵属拟刺葵亚属的一个新种— 内蒙古拟刺葵 (Phoenicopsis (Phoenicopsis) neimengensis sp． nov． )。该新种以表皮构造下气孔式，上表皮细胞未见乳突，下表皮普通表皮细胞发育中央乳突，气孔器副卫细胞多发育乳突，孔缝不定向等特征区别于拟刺葵属已知种。新种的研究对于了解拟刺葵属 (Phoenicopsis) 的分类，以及恢复古地理、古气候有重要作用。

A new species，Phoenicopsis (Phoenicopsis) neimengensis sp． nov． ，with well- preserved cuticles from the Lower Cretaceous Huolinhe Formation of Huolinhe coalfield in Inner Mongolia，China，was studied in gross morphology and anatomically． The leaves of new species are hypostomatic． The cuticles of new species are characterized by the upper epidermal cells with no papillae，while the ordinary cells of lower epidermis papillosed centrally，and most of subsidiary cells papillosed，with the stomata in irregular orientation． The characters show those of Phoenicopsis (Phoenicopsis) subgenus are differ from other known species of Phoenicopsis． The study of the new species is beneficial for the taxonomic research on Phoenicopsis，and helpful for a better understanding the pa- leogeography and paleoclimate related to the new taxon．