570 RoBINSON: PTERIDOPHYTA OF THE HAWAIIAN ISLANDS 
Veins free. 
Leaves densely covered with brown scales. E. hirium. 
Leaves smooth or bearing minute scattered scales. 
Rootstock slender, 1-5 mm. in diameter. 
Leaf blades oblong-lanceolate, acumin 
ate. E. micradenium. 
Leaf blades linear or linear-oblanceolate, acute or 
somewhat obtuse. E. aemulum. 
Rootstock stout, 2-4 cm. in diameter; leaf oblanceolate, : 
obtuse. E. Wavwrae. 
Veins not free. 
Veins anastomosing freely throughout. E. reticulatum. 
Veins united by a marginal vein. E. gorgonium. 
ELAPHOGLOSSUM HIRTUM (Sw.) C. Chr. Ind. Fil. 308. 1905 
Acrostichum hirtum Sw. Jour. Bot. Schrad. 18007: 10. 1801. 
Acrostichum squamosum Sw. Jour. Bot. Schrad. 1800: 11. 1801. 
Not Cav. : 
Acrostichum vestitum Lowe (paleaceum in plate); Hook. & Grev. 
Ic. Fil. 2: 235. 1831. Not Schl. & Cham. Linnaea 5: 605. 
1830. 
Elaphoglossum squamosum J. Sm. Jour. Bot. Hook. 4: 148. 1841. 
Elaphoglossum vestitum J. Sm. Ferns Brit. & For. 106. 1866. 
Acrostichum micans Mett. in Kuhn, Linnaea 36: 50. 1869. 
TYPE LOCALITY: Azores (?) 
DistriBuTION: Exposed ridges at 900-1,200 m. elevation, also 
on banks of streams in woods, tropical countries. 
SPECIMENS EXAMINED: Hawaii, Wilkes Expedition C, Ni 
Robinson 272 V; 274 V; 283 V; Maui, Lichtenthaler N; Heller 
2688 C, N; Hawaiian Islands, Baldwin 99 C, N; Hillebrand C; 
Lindley C; Miss Sessions C; ex Herb. John Donnell Smith N. 
The description of E. hirtum by Swartz in Jour. Bot. Schrad. 
1800?: 10. 1801 is inadequate but is amplified in Syn. Fil. 194. 
1806. 
ELAPHOGLOSSUM MICRADENIUM (Fée) Moore, Ind. Fil. 12. 1857 
Acrostichum micradenium Fée, Mém. Foug. 2: 43- 1845. 
Elaphoglossum nitidum Brack. Fil. U. S. Expl. Exp. 79- 1854- 
TYPE LocaLity: Hawaiian Islands. 
DisTRIBUTION: On rocks and trees from 300 m. elevation UP- 
wards; Hawaiian Islands. 
ILLusTRATIONS: Fée, Mém. Foug. 2: $l. 8, f. I. 
Fil. U. S. Expl. Exp. pl. 9, f. 3. 1854. 
1845; Brack. 
