a–d Rhizome scales and e–h rachis scales of Orthiopteris. a O. cicutarioides (Carr 13257, L) b O. ferulacea (Smith 8932) c O. firma (Green 1793, K) dO. campylura var. kingi (Hoogland & Craven 10162, L) e, fO. campylura var. kingi (Larhing 6910, L) g, h O. samoensis (Reinecke 97a, L). Scale bars: 1 mm (a–d), 0.1 mm (e–h).

 
 
  Part of: Luong TT, Hovenkamp PH, Sosef MSM (2015) Revision of the fern genus Orthiopteris (Saccolomataceae) in Malesia and adjacent regions. PhytoKeys 53: 39-71. https://doi.org/10.3897/phytokeys.53.4955