雌雄异株物种一把伞南星雌雄株空间分布及性别二态性

舒为杰, 何花, 曾罗, 谷志容, 谭敦炎, 杨晓琛

Spatial distribution and sexual dimorphism of dioecious Arisaema erubescens

Weijie Shu, Hua He, Luo Zeng, Zhirong Gu, Dunyan Tan, Xiaochen Yang

图1 一把伞南星植株及花部形态示意图。(A)植株; (B)佛焰苞外部形态; (C)雌株佛焰苞纵切面观; (D)雄株佛焰苞纵切面观。1: 花序高度; 2: 假茎长; 3: 假茎基径; 4: 花序柄长; 5: 花序柄直径; 6: 佛焰苞长; 7: 佛焰苞檐宽; 8: 佛焰苞管长; 9: 管部直径; 10: 喉部直径; 11: 花序长; 12: 花序基径; 13: 花序顶径; 14: 附属器长; 15: 附属器直径; 16: 雄株佛焰苞基部小孔; 17: 通道直径。

Fig. 1 Schematic of individual and floral morphology of Arisaema erubescens. (A) Individual; (B) External morphology of spathe; (C) Female spathe vertical-section; (D) Male spathe vertical-section. 1, Inflorescence height; 2, Pseudostem length; 3, Pseudostem basal diameter; 4, Peduncle length; 5, Peduncle diameter; 6, Spathe length; 7, Limb width of spathe; 8, Tube length of spathe; 9, Tube diameter; 10, Throat diameter; 11, Inflorescence length; 12, Inflorescence basal diameter; 13, Inflorescence apical diameter; 14, Appendix length; 15, Appendix diameter; 16, Exit hole at the base of spathe in male individual; 17, Channel diameter.