Aspidium.| FILICES. 567 
‘il. p. 311. — Polypod. Honolulense, Hook. Sp. Fil. IV, 288 (foot 
note). 
hu! Kalihi, Kaala, noes Pepe eae Kamalo, Pelekunu; Lanai! 
Maui! Hawaii (Baldwin). — me: «Akolea». The great resemblance of this fern 
0 Asp. latifrons was adverted oe ay Mr. Baker in the Synopsis Fil., and I have long felt 
vt 
n 
living plants always revealed naked sori even in the earliest s stage of development. It has 
to be borne in mind, too, that the involucre of A. latifrons is large, firm and permanent. 
10, ASPIDIUM, Sw. 
Sori on distinct receptacles, globose, dorsal, rarely apical, or at first 
apical but by prolongation the anastomosing veinlets soon dorsal. 
by the 
Involucre orbicular and peltate, attach centre, entire or slit, or 
cordate-reniform, attached by the sinus. Veins free or UES the 
sterile ones ending in an acute apex. Stipes exarticulate. Spores oyoid- 
Spiga marked with a single te ine. 
arge genus, spread over the entire 
Frond pinnate 
ies ai caheniics or serra 
Pinnae ovate or ovato- Pree ere 
Pinnae linear-lanceola 
Pinnae Fortiergaia eut; the lower veins of adjoining lobes anas- 
tom 
Pence eut about J/s their width into eo lobes; lowest 
sori not margina 
Pinnae cut to 12 their width; “the sori " confined to the lan- 
conate lobes and all ma rgina 
Pin the sori not confined to the truncate lobes 
Sh 
. A. caryotideum. 
. A, cyatheoides. 
. A. unitum. 
. terminans, 
A 
7. A. truncatum. 
A 
A 
not margin nal . 
Pindas: Gee eut; veins of adjoining lobes not uniting: : P 
Sori m marginal; rhac his and stipes naked : 10. A. globulijerum. 
Sori not —— rhachis and s siiee paleaceous pea 4A a Alea 
Frond bipinnat : 
nd large, stiff, brownish ; — awnless ; ase 1. A. Hillebrandi 
Frond small, herbaceous; segmen wned : ; : 2. A. aculeatum. 
nd tri-, quadripinnate; vein oe 
Sori close to the costule e ; 3 : : : : : 14. A. rubiginosum. 
Sori submargin: : : 16. A. latifrons. 
Sori midway between costule and margin 
Stip. and rhachis covered with pale dia palaeinin ovate scales 15, A. peeve aa 
Stip. and rhachis covered with blackish hair-like scales 12. A. Hawaiiense. 
Uppe ed = a 
8 pelta 3. A. aristatum. 
Segmen ster gi Se aaa with 1-3 5 iothioan: oe netehed 13. A. glabrum. 
Frond decompound; astomosing alee aot follan. 
8 x papoen A. eukieaL aculeatum, seth be aeeutden, filix-mas, Hawaiiense, 
glabi 
Sudph epepte teroid: A. glabrum, var. rubiginosw 
Cyatheoid: A. hth athe — truncatum, peak nern unitum, globuliferam, squamigerum, 
latifrons, apiifoli 
A. Polystichum, Schott. — Involucre peltate. Veins all free. Teeth of 
pinnules or segments usually sharp or awned. Frond polystichoid. 
