112 PROCEEDINGS OF THE AMERICAN ACADEMY. 
and much more thorough collectors who have visited the archipelago. 
Further distrib. Southern U. S., Mex., W. Ind., S. Am., “ Australia.” 
P. crassirotium, L. Sp. 1088 (1753); Hook. Sp. Fil. v. 62; Hemsl. 
Biol. Cent.-Am. Bot. iii. 656; N. E. Brown, Trans. Linn. Soc. ser. 2, 
vi. 85. P. coriaceum, Raddi, Fil. Bras. 16, t. 25, -Pleuridium crassi- 
folium, Fée, Gen. Fil. 273. —Gatapagos Ips.: Capt. Wood (hb. Kew). 
Further distrib. Mex., W. Ind. to Peru and Brazil. 
P. mncanum, Sw. Prodr. 131 (1788); Hook. Sp. Fil. iv. 208. 
Acrostichum polypodioides, L. Sp. 1068 (1753). Marginaria incana, 
Presl, Tent. Pterid. 188 (1836); Hook. f. (3), 166; Anderss. (1), 127, 
& (2), 38 (where P. incisum, Sw., is incorrectly given as a synonym, 
instead of the correct P. incanum, Sw.). — GaLapacos Ips.: Capt. 
Wood, acc. to Hook. l.c. ALBEMARLE Ist.: Macrae. CuHarves Is.: 
Darwin. Further distrib. U. S., Mex., W. Ind., S. Am., Trop. Afr. 
P. LANCEOLATUM, L. Sp. 1082 (1753). P. macrocarpum, Willd. Sp. 
Pl. v. 147 (1810). P. lepidotum, Willd. in Schlecht. Adumbr. 17, t. 8 
(1825). Pleopeltis ensifolia, Hook. Ex. FI. t. 62 (1823). P. macro- 
carpa, Kaulf. Enum. Fil. 245 (1824); Hook. f. (3), 167; Anderss. 
(1), 127, & (2), 39. P. lanceolata, Presl, Tent. Pterid. 193 (1836) ; 
Anderss. (1), 128, & (2), 39. P. lepidota, Hook. f. (3), 167; Anderss. 
(1), 126, & (2), 39. Lepicystis lanceolata, Diels in Engl. & Prantl, 
Nat. Pflanzenf. i, Abt. 4, 323 (1899).— AtBemaRLE Isi.: Iguana 
Cove, on trees and bushes, alt. 310 m., Snodgrass & Heller, no.-127 
(hb. Gr.). Cuartes Ist.: Darwin ; in upper shaded region, Anders- 
son. JAMES Ist.: Darwin. Further distrib. trop. of both hemispheres. 
P. Lerrpopteris, Kunze, Linnaea, xiii. 132 (1839) ; Hook. Sp. Fil. 
iv. 211; Hook. & Bak. Syn. Fil. 346. <Acrostichum lepidopteris, 
Langsd. & Fisch. Fil. i. 5, t. 2 (1810).— Garapacos Ivs.: Capt. 
Wood, ace. to Hook., l.c. Further distrib. general in trop. Am. 
P. tortceum, L. Sp. 1086 (1753); Hook. Sp. Fil. v. 21. P. pune- 
tulatum, Hook. Ic. Pl. t. 720 (1848). Goniophlebium loriceum, J. Sm. 
in Hook. Gen. Fil. under t. 51 (1838); Moore, Ind. Fil. 392. — Gara- 
PAGOS Ips.: acc. to Moore, 1.c. Further distrib. general in trop. Am. 
P. pareaceum, Hook. f. (3), 166; ? Anderss. (1), 126, & (2), 383 
? Hook. Sp. Fil. iv. 261. ? Alsophila sp., Rob. & Greenm. (1), 149. 
— Cuartes Ist.: Darwin. James Ist.: Darwin. Endemic. To 
this species I would doubtfully refer specimens from ALBEMARLE IsL., 
Iguana Cove, Snodgrass & Heller, no. 113 (hb. Gr.); CHaRvEs IsL., 
Andersson, Lee (hb. U. S. Nat. Mus.); and Cuatuam Ist., southwest 
