# 石松纲
## Noun (N)
### Sense: club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
- ชั้นไลคอปซิดา
### Sense: alternative designation for the class Lycopsida
- ชั้นไลโคโพดิเนีย