CAJ | 학술논문

详细研究了托叶铁科两属的2种代表植物Stanngeria eriopus和Bowenia serrulata的羽片脉序和羽片解剖学.两个属在气孔器特征与不具副传输组织方面极为相似,而在气孔的分布、羽片脉序式样与叶缘形态、粘液道的有无、海绵组织与栅栏组织的分化、工字厚壁组织与表皮细胞垂周壁特征方面则有较大的差异.将这些特征与苏铁科和泽米铁科作了比较,并讨论了这些特征在系统学上的意义.研究结果支持Stevenson(1992)将该科分为两亚科以及托叶铁科是介于苏铁科与泽米铁科之间的观点.
상세연구료탁협철과량속적2충대표식물Stanngeria eriopus화Bowenia serrulata적우편맥서화우편해부학.량개속재기공기특정여불구부전수조직방면겁위상사,이재기공적분포、우편맥서식양여협연형태、점액도적유무、해면조직여책란조직적분화、공자후벽조직여표피세포수주벽특정방면칙유교대적차이.장저사특정여소철과화택미철과작료비교,병토론료저사특정재계통학상적의의.연구결과지지Stevenson(1992)장해과분위량아과이급탁협철과시개우소철과여택미철과지간적관점.
Pinna venation pattern and pinna anatomy of two species, Stangeria eriopus and Bowenia serrulata, representatives of the two genera in Stangeriaceae were studied in this paper.The two species (genera) are similar in stomatal character and in the absence of accessory transfusion tissue, but they are very different in stomatal distribution, pinna venation pattern and pinna marginal shape, presence or absence of mucilage canal, differentiation of palisade and spongy parenchyma, characteristics of girder parenchyma and epidermal anticlinal wall. Pinna venation and pinna anatomy of Stangeriaceae are compared with those of Cycadaceae and Zamiaceae. Stevenson's classification (1992) with two subfamilies and the treatment of Stangeriaceae as a transitional evolutionary position between Cycadaceac and Zamiaccac is supported by present study.