180 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
P. potypopiorpEs (L.) A. S. Hitchcock, Rep. Mo. bot. garden, — 
vol. 4, p. 156 (1893). Acrostichum polypodioides L., Sp. pl., vol. 2, 
p. 1068 (1753). Polypodium incanum Sw., Prod. veg. Ind. Oce., p. 
131 (1788).— San Juan Mt., alt. 450 m., Johnston, no. 157, July6. — 
Southern and central United States to Argentina. i : 
XrpHopreris Kaulf. 
X. serRuLatA (Sw.) Kaulf., Enum. Fil., pp. 85, 300 (1824). Aero 
stichum serrulatum Sw., Prod. veg. Ind. Occ., p. 128 (1788). Polypo 
dium serrulatum Mett., Fil. hort. Lips., p. 30 (1856), not Sw. (1800). 
Xiphopteris extensa Fée, 1lme Mém., p. 14, pl. 19, fig. 3 (1866), nots 
Polypodium extensum Forst. (1786), Pres] (1825), nor Fée (1869)— 
Juan Griego trail, alt. 450 m., Johnston, no. 144, Aug. 12-15. Tropiey 
cal America generally. Also occurs in Africa. : ‘ 
ADIANTOoPSIS Fée. 
A. Rapiata (L.) Fée, Gen. Fil., p. 145 (1850-52). Advanhum 
radiatum L.., Sp. pl., vol. 2, p. 1094 (1753).— San Juan Mt., alt. 400 m-, f 
Johnston, no. 184, July 6. Not uncommon in the American tropl¢s- 
ApIANTUM L. 
A. TeTRAPHYLLUM H. & B. ex Willd., Sp. pl., vol. 5, 441 (1810); 
Urb., Symb. Ant., vol. 4, p. 45 (1903), where reported as occurring OP 
Margarita Island.— El Valle, Miller & Johnston, no. 166, July 29% 
Juan Griego trail, alt. 300 m., Johnston, no. 162. Tropical America. 
Ceropteris Link. 
C. cALOMELAENA (L.) Link, Fil. sp. hort. bot. Berol., p- 141 (1841). 
Acrostichum calomelanos L., Sp. pl., vol. 2, p. 1072 (1753)- ee 
gramma calomelanos Kaulf., Enum. Fil., p. 76 (1824)— San Juan 
Mt., alt. 550 m., Johnston, no. 182, July 19. Tropical Americ 
Africa. Escaped from cultivation in Luzon. 341) 
C. Tarrarea (Cay.) Link, Fil. sp. hort. bot. Berol., p- 142 (1 fi 
Acrostichum tartarewm Cav., Deser. pl., p. 242 (1802). ner" 
gramma tartarea Desy., Mag., Gesellsch. nat. Fr. Berlin, vol. 5, P- 28. 
(1811).—San Juan Mt., alt, 795 m., Johnston, no. 181, Aug, a 
Tropical America; uniformly at a higher elevation than the pree eding 
