Asplenium. | POLYPODIACEL. 1247 
A large fern, with a stout, scaly caudex and pinnate 
fronds 
1136. Asplenium Linn. 
Herbs, es or with creeping rootstock ; fronds very variously 
simple, pinnate or 2-more-pinnatifid, herbaceous or coriaceous ; 
veins aaa pi sometimes connected at their apices by a mar- 
vein or, less often, anastomosing towards the margin or 
dorsal or submarginal, linear or oblong, usually oblique wit 
reference to the midrib, generally straight, occasionally curved ; 
indusium plane or tumid, similar in shape to the sorus, single and 
opening toward the midrib, or double and opening outward as well. 
*Veins passing from midrib to margin without anastomosing :—[p. 1248] 
Veins connected at their apices by an intramarginal = parallel with 
the edge of the simple frond; indusium simple, linear 
Midrib rounded throughout on the back; sori ates about ser 
y to of fron 
Midrib rounded and prominent only below; sori sah ree 
midrib Pits to margin of fron Simonsianum. 
Veins fre 
Indus simple, opening towards midrib :— 
Indusium straight, wii or oblong :— 
Fronds once pinn 
Pinne check Pau to the base on the upper side, t 
inner edge almost parallel with main-rachis, the lower side 
pas i can sori in long, irregular lines, reaching 
fe 
aleatum 
me in babies of the lower side cut away; sori neither 
ilaterale. 
reaching midrib nor margin 
Fronds with pinne cut nearly or quite to the rachis in “the lower 
part, with stalked, ovate-rhomboid, deeply toothed lobes 
laciniatum var. depauperata, 
Indusium more or less curved :— 
Fronds 2-pinnatifid, 1-5-2 in. Wiley cc sceceaes drepanophyllum, 
Fronds 3-4-pinnatifid, 6-12 in. wide :— 
Fronds finely 3-pinnate, Sciinbas 
Filix-femina var. pectinata, 
Fronds coarsely 2-pinnate, rae d 
ilix-femina var. parasnathensis, 
twarde ac 
Indusium double 
+Fronds sii, ‘entire c or nearly so [p. 1248] lanceum 
