IX, C, 5 Copeland : Hawaiian Ferns 4A 
fertilis 8-10 cm altis, validis; frondibus plantae in manu frag- 
mentariis, parte frondis sterilis 30 cm alta, 7.5 cm lata, usque ad 
apicem dilatata, deorsum sensim usque ad pedem fere truncatam 
angustata, haud decurrente; fronde fertile sensim ad alam brevem 
angustata; venis plerisque infra marginem anastomasantibus, 
margine haud hyalina. 
Faurie No. 427, Kauai. My specimen probably does not include more 
than half of the sterile frond. 
The “gorgoneum” group in Hawaii is far from being as simple as might 
be supposed from its freedom from specific names. Of these, there seem 
to be only two, given to Acrostichum gorgoneum Kaulf. and Acontopteris 
obtusa Fée. These I believe to be the same plant, although Christ (Mon- 
ograph, p. 49) would distinguish them and place them in different groups. 
Acrostichum pellucido-marginatum Christ is not a Hawaiian plant, and may 
well be a good species. A. Viellardii Mett. (Cf. Hooker. Sp. Fil. 5: 255) 
has long, slender petioles and but slightly decurrent blades. 
The paleae of Elaphoglossum usually furnish excellent diagnostic char- 
acters, and seem never to have received discriminating attention from writers 
on the Hawaiin ferns of this group. The H#. gorgonewm of Christ’s Mon- 
ograph has rather broad paleae with crisped or ciliate margins. Fée does 
not describe the paleae of A. obtusa, but his figure indicates that they are 
of this type. We have Hawaiian specimens of this plant, collected by 
Faurie, Bartsch, the Hawaiian Board of Forestry, Forbes, and Curran. 
These paleae are brown, usually dark-brown, in color, and their cells are 
for the most part short and irregular. Hillebrand, on the other hand, 
describes the paleae as long, stiff, linear-lanceolate and entire. These are 
all truer of the two species described above, than of the plants I call LF. 
gorgoneum. But Hillebrand says the paleae are dark-brown while both 
of these species have them very distinctly black. 
LINDSAYA MACRAEANA (H. & A.) Copel. comb. nov. 
Davalia macraeana H. & A. Bot. Beechey’s Voyage (1832) 108. 
Odontoloma, Brack. (1854). 
