1) Order ophioglossales 2) Plant order 
Ophioglossales (lit. `snake-tongue-plant`) are a small group of pteridophyte plants. Traditionally they are included in the division Pteridophyta, the ferns, originally as a family and later as the order Ophioglossales. In some classifications this group is placed in a separate division, the Ophioglossophyta, but recent molecular systematic stud.....
[n] - coextensive with the family Ophioglossaceae
order Ophioglossales noun coextensive with the family Ophioglossaceae