柳叶蕨属鳞毛蕨科分类性状观察.PDF

2010, 30( 4): 397~ 404 Bu lletin of Botan ica l R esear ch () 刘红梅 曾 辉* (, , 518055) , ( Cyr tog onellum Ch ing) , 4, ; , ; , , ; ; : S682. 35 : A : 1673- 5102( 2010) 04- 0397- 08 Observation ofMorphologicalCharacteristics of theGenus Cy rtogonellum Ching(Dryopteridaceae) * LIU HongM ei ZENG H ui ( The Key Laboratory for Environm ental and Urban Sciences, Shenzhen Graduate School, Peking University, Shenzhen 518055) Abstract Through herbarium studies and field observations, the taxonom ical characteristics of the fern genus Cyrtog onellum Ch ing ( Dryo teridaceae) w ere com ared and studied. The resu lts show ed that fourmor hological characteristics, veins free or anastomosing, a ex innatifid orw ith an a ical inna, airs of lateral innae, and s ore ornamentation, are themost stable and useful characteristics in th is genus. Other useful characteristics in clude both sha e and size of the lateral innae. The size of lants is one of the most unreliable features and it shou ld not be used as the sole basis for defin ing s ecies. Keywords Cyrtog onellum Ch ing; taxonomy; mor hological characteristics [ 1] 1938 , C. x ichouense )(C ! rup i (Cyrtog onellum f rax inellum ( Christ) Ching), cola P. S. W ang et X. Y. W ang) (Cyrtog onellum Ching), , 2 [(C. caducum Ch ing) , 7, (C. inaequale Ching) ] , W uM it [ 2] [ 3] [ 4] [ 4] suta , 6 1, (C. x ichouense S. K. Wu etM it