220 ACROSTICHUM, § ELAPHOGLOSSUM. 



53. A. (Elaphoglossum) viscosum, Sw. ; caudex creeping 

 or ascending thick generally clothed at the apex with dark- 

 brown or black more or less subulate scales, stipites clus- 

 tered mostly elongated but varying much in length 3-4-6-10 

 inches long longest in the fertile fronds smooth or more or 

 less dotted with blackish furfuraceous scales which often ex- 

 tend to the under side of the costa ; sterile fronds 5 inches 

 to a foot long J-| or rarely 1 inch wide firm-membranaceous 

 or subcoriaceous often dotted (more so on the under side) 

 with minute stellated deciduous scales sometimes viscid 

 linear-ensiform acuminate much attenuated at the base 

 scarcely thickened at the edge, costa very distinct slender, 

 veins clubbed at the apex and extending quite to the margin ; 

 fertile fronds 4 inches to a span long much narrower and 

 more linear than the sterile ones and on stipites twice or 

 thrice the length of the sterile ones. — Sw. Syn. Fil. pp. 10 

 and 193. JVilld. Sp. PI. v. p. 193. Hook, and Grev. Ic. Fil 

 t. 64. Wall. Cat. p. 15. Bl. Fil. Jav. Fee, Acrost.p. 45. Ol- 

 fersia, Pr. Elaphoglossum, Schott. Moore. Acrost. petio- 

 latum, Siv. Fl. Ind. Occ. \\\. p. 1888. A. salicifolium, Kaulf. 

 A. Blumeanum, Fee, Acrost. p. 62. Elaphoglossum, J. Sm. 

 {name only). A. Breutelianum, Kze. in Schk. Fil. Suppl. ii. 

 p. 3. t. 103 (fert. frond, ,^<ie Fee, Moore). A. neriifolium. 

 Wall. Cat. w. 16. 



Hab. Tropical America, abundant : West Indies, perhaps in all the islands, 

 Jamaica, etc. ; Cuba, C. Wright, n. 789 (1859) ; Guadeloupe, U Herminier, n. 6, 

 with stipites of sterile and fertile fronds more than a foot long ; New Granada ; 

 very characteristic specimens from Venezuela, Fendler, n. 272 (hut very small), 

 273, 274, 275, 295,-280 has the sterile fronds 12-14 inches long, 2 inches 

 broad, and quite vernicose, and is the A. xanthoneuron, Kze. and Metten.in Eat. 

 Fil. Wright, et Fendl. p. 194 (name only) ; Brazil, Gardner, n. 99, Fox, n. 246 ; 

 St. Gabriel, Spruce, n. 2308 (sterile fronds finely and pungently acuminated) ; 

 Mexico, Coulter, n. 1695 and 1696, Schaffaer, 2 ; Vtxn, Mathews, n. 3278, Ilart- 

 weg, n. 1793 ; Ecuador, Jameson, n. 18, Spruce, n. 5288, "stipites insigniter vis- 

 cosi." Tropical India: Java, Blume, Millett ,- Luzon, Cuming, n. 194; Nepal, 

 Walllch, n. 16 (".4. neriifolium. Wall.") ; Khasya, Hooker fil. and Thomson, alt. 

 4000 feet; Nilghiri, Beddome, n. 4, 5. Mauritius and Bourbon, Sieb. Stjn.Fil.n. 

 28, Bory, Bouto7i, etc. Ceylon .', Gardner (without a number, very obtuse at the 

 apex of the fronds, and almost intermediate between A. conforme and viscosum ; 

 young sterile fronds vernicose). Tropical Africa : Fernando Po, alt. 2000 feet, 

 G. Mann, n. 270, in pari, (quite characteristic) ; Johanna Island, east tropical 

 Africa, Dr. Kirk. — A widely distributed species, and, as may be expected, sub- 

 ject to much variation, sometimes showing a close affinity with narrow and 

 elongated forms of J. conforme, sometimes with A . Martinicetise, and their allies. 

 The figure of Dr. Greville in Ic. Fil. is certainly very characteristic. 



54. A. (Elaphoglossum) Preslianum, Fee; caudex long 

 thicker than a swan's quill apparently scandent naked or 



