25.Series of pinnately-veined leaves.

The veins start from either side of a single midrib (feather-veined or pinnately-veined), or they branch from a number of ribs which all start from the top of the petiole, like the fingers from the palm of the hand (palmately-veined).

The compound leaves correspond to these modes of venation; they are either pinnately or palmately compound.

The lower pinnæ pinnately parted into three to five divisions, those of the fertile fronds oblong or linear-oblong; those of the sterile, obovate or ovate, crenulate, decurrent at the base.

Pinnæ ovate-oblong, the lowest pinnately cleft into oblong or ovate cut-toothed lobes, the upper ones less and less divided.

Pinnules pinnately cleft, the oblong lobes spinulose-toothed at the apex.

THE WOODSIAS Small, tufted, pinnately divided ferns.

Pinnæ rather remote, triangular-ovate or oblong, pinnately parted into obtuse, oblong, toothed segments.

Sterile segment of the frond ternately or pinnately divided or compound.

Sterile segment short-petioled, usually near the middle, simple and roundish or pinnately three to seven lobed.

"Those leaves are 'pinnately compound' and 'palmately compound' according as their leaflets are arranged like a feather or like the palm of your hand.