Beecheyane. N. O. Filices. 
DCCCCXLIV. 
PoLypopium (Ctenopteris) PELLUCIDUM, Kaulf. 
Glabrum subcoriaceum, frondibus ovatis oblongisve profunde 
pinnatifidis, laciniis valde approximatis patentibus oblongis 
crenato-dentatis vel serratis vel erecto-patentibus remotis 
marginatis pinnatifidis, soris copiosis rotundatis y. ovalibus 
sepe confluentibus, venis dichotomis striisque interstitialibus 
pellucidis, stipite rachique validis fuscis nitidis, caudice 
crasso repente squamoso. 
a. fronde lata laciniis acutiusculis serratis. 
Polypodium pellucidum, Kaulf. En. Fil. p. 101. Gaudichaud, 
in Freyc. Voy. p. 356. Hook, et Arn in Bot. of Beech. Voy. 
p. 103. (TAB. NOSTR. larger figure). 
8. fronde augustiore coriacea, venis vix pellucidis, laciniis 
numerosis approximatis erecto-patentibus obtusis crenato- 
se " 
rra 
y- fronde elliptica, laciniis valde approximatis obtusissimis 
obscure crenatis. (TAB. NOSTR. smaller Jigure.) 
6. fronde elongata bipinnatifida, laciniis p 
Polypodium myriocarpum, Hook. Ic. Fil. t. 84. (See also 
the next plate, t. 945.) 
Has. Oahu, Sandwich Islands, Chamisso, Douglas, Beechey, 
Dr. Diell. 
Without a coloured figure of a magnified portion of this 
Fern it would be difficult to give Pg of the i 
extremity) veinlets, of which the upper one bears the sorus, 
there is, what I here call, an intestitial pellucid stria always 
communicating with a crenature or sinus between the teeth 
of the margin, usually the most conspicuous of the pellucid 
I am satisfied that the above mentioned varieties 
es. 
belong to one and the same i shes 
one into the other. species, and that they pass 
Tab. 944 exhibits vars. and (the larger specimen) y. nat. 
size.—Fig. 1. Portion of the underside of ile lobe seen 
hb ben: Echinach underside of a fertile lobe 
rimariis remotis. — 
