JOHNSTON: FLORA OF .MARGARITA ISLAND. 183 
Holl., p. 149 (ISIO). — Juan Griego trail, alt. 450 m., Johnston, no. 
194, July 19. Tro})ical and subtroj)ical regions of both hemispheres. 
Rare in the southern United States. 
D. PUBESCENS (L.) Ktze., Rev. gen., vol. 2, p. 813 (1891). 
PoJypodium pubescens L., Syst. nat., ed. 10, vol. 2, p. 1327 (1759). — 
Juan Griego trail, alt. 450 m., Johnston, no. 195, Aug. 12-15. The 
specimens are broader and less produced than the typical Jamaican 
form. West Indies. 
D. Mercurii (A. Br.) Hieron., Hedwigia, vol. 46, p. 335, pi. 5, 
fig. 9 (1907). Aspidium Mercurii A. Br. ex Christ., Bull. herb. 
Boiss., ser. 2, vol. 6, p. 58 (1906), name only. — Juan Griego trail, 
alt. 450 m., Johnston, no. 190, July 29. Determined by Christensen, 
who attributes the species also to Mexico, Costa Rica, Colombia, and 
Ecuador. 
[D. TETRAGONA (Sw.) Urb., Symb. Ant., vol. 4, j). 20 (1903). Polij- 
podium tetragonum Sw., Prod. veg. Ind. Occ, p. 132 (1788). — Stated 
by Urb., /. c, to grow on jNIargarita Island, a report based upon 
material collected by Miller & Johnston in 1901.] 
D. viLLOSA (L.) Ktze., Rev. gen., vol. 2, p. 314 (1891). Polij- 
podium villosum L., Sp. pi., vol. 2, p. 1093 (1753). Nephrodinm 
viUosum Presl, Rel. Haenk., vol. 1, p. 38 (1825). Juan Griego trail, 
alt. 450 m., Johnston, no. 187 in part, July 29. Tropical America. 
Meniscium Schreb. 
M. RETicuLATUM (L.) Sw. in Schrad., Jourh. bot., 1801, i)t. 1, j). 
274 (1803). Polypodium reticulatum L., Syst. nat., ed. 10, vol. 2, 
p. 1325 (1759). Nephrodinm reticulatum Keyserling, Pol. Cyath. 
herb. Bung., p. 49 (1873). Dryopteris reticulata Urb., S}Tnb. Ant., 
vol. 4, p. 22 (1903).— El Valle, Miller & Johnston, no. 156, Aug. 16; 
Juan Griego trail, alt. 450 m., Johnston, no. 166, July 22. Tropical 
America. 
Olfersia Raddi. 
O. CERViNA (L.) Kunze, Flora, vol. 7, pt. 1, p. 312 (1824). Os- 
munda cervina L., Sp. pi., vol. 2, p. 1065 (1753). Polyhotrya cervina 
Kaulf., Enum. Fil., p. 55 (1824).— Juan Griego trail, alt. 450 m., 
Johnston, no. 152, July 31. Tropical America. 
Tectaria Cav. 
T. heracleifolia (Willd.) Underw., Bull. Torr. bot. club, vol. 33, 
p. 200 (1906). Aspidium heraclei folium Willd., Sp. pi., vol. 5, p. 217 
