of the Galapagos Archipelago. 167 
rica, and even found so far north as Boston, U.S., the only specimens which 
have come under my observation with the lower pinne forked, are the above, 
and Mr. Purdie’s from Jamaica. 
17. M. EwsrFOLIA, Presl (Polypodium, Sw.). 
Hab. James Island. Common to all the warm regions of South America and the West 
Indies. 
18. PLEOPELTIS LEPIDOTA, Willd. 
Hab. Charles Island, Charles Darwin, Esq. Abundant throughout the tropics, and pro- 
bably not distinct from the following species. 
19. P. macrocarpa, Kaulf. 
Hab. James Island, Charles Darwin, Esq. 
The fronds in these specimens are strictly lanceolate and attenuate at both 
ends; exactly according with individuals from Peru. 
20. P. AUREA, Presl (Polypodium, L.). 
Hab. James Island, Charles Darwin, Esq. Also a frequent plant in South America. 
Fronds generally pinnatifid, but in one (probably monstrous) specimen, 
there are four digitate spreading pinne. 
21. CAMPYLONEURUM Puy.urripis, Presl (Polypodium, Sw.). 
Hab. James Island, Charles Darwin, Esg.. Common all over tropical South America. 
22. OLFERSIA Lanasporrru, Presl (Acrostichum, H. & G.). 
Hab. James Island, Charles Darwin, Esq. 
23. O. viscipa, Presl (Acrostichum, Auct.). 
Hab. James Island, Charles Darwin, Esg. West Indies, abundant. 
24. Hemionitis PINNATA, Hook. fil.; frondibus biformibus (ex eadem radice) 
suprà nudis subtüs dense rufo-paleaceis, sterilibus sessilibus elongato- 
spathulatis obtusis, fertilibus sublong? stipitatis pinnatis, pinnis linearibus 
elongatis obtusis integerrimis subtis undique soriferis, soris paleaceis. 
Hab. Charles Island, Charles Darwin, Esq. 
Radices cespitosi, fibrosi ; fibris atris repentibus. Frondes steriles 10-12, undique patentes. 
