phytes in the forests. 
ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANpS 569 
Veins Penge leaf blade 
simp 
Veins OS, leaf blade 
pinnatifid 
Indusium present. 
Sori roundish or oval. 
Veins free 
Indusium circular, attached in 
the center. 
Indusium reniform or orbicu- 
lar, Kien ees at the side or 
in thes 
Veins anastomosing. 
Veins eT, regularly 
to form one or more areolae, 
with free included veinlets. 
Veins anastom g copiously, 
with few uaa veinlets. 
Sori elongate, on the veins or crossing 
them. 
Leaf blades simple. 
f blades pinnate to quadri- 
pinnate. 
Veins free; sori oblique to 
the midri 
Sori simple 0 on the outer 
of bait esi 
or cro 
Sori cacnbe oat 
Sori usually curved, 
often crossing the 
veinlet. 
Sori double, usually open- 
ing outward. 
Veins ae sori par- 
el to the m 
Sori continuous. 
Sori interrupted. 
ty 
° 
ty 
NO 
cl 
oo 
23, 
24. 
iS) 
un 
26. 
bo 
~ 
29. 
30. 
. Polystichu 
. Phymatodes. 
. Phlebodium. 
m, 
. Dryopteris (in part), 
Cyrtomium. 
Tectaria. 
. Neottopteris. 
Asplenium. 
Sadleria. 
Doodia. 
I. ELAPHOGLOSSUM Schott, Gen. Fil. p/. 14. 
Mostly tropical plants found growing upon rocks or as epi- 
. Athyrium. 
. Diplasium. 
1834 
Rootstock erect or creeping; leaves articu- 
late, simple; blades of fertile leaves usually narrower than those 
of sterile leaves; veins usually free, occasionally anastomosing; 
Sporangia covering the lower surface of the leaf, non-indusiate. 
Type species: Elaphoglossum conforme (Sw.) Schott. 
