18:; 



ADDENDA. 



HYMENOPHYLLUM DICHOTOMUM, Cavanilles, Swartz, Willde- 

 tiow, Hooker. (Hyraenoplayllum plicatum, Kaulfuss.)—A- beautifully crisped 

 and transparent species, with broad, much-divided fronds. Native of Chili, 

 Juan Fernandez, and Java; on mossy trees. Length of frond from four 

 to six: inches. Figured by Sir W. J. Hooker, plate 36 — A, vol. i, "Species 

 Filicum." 



HYMENOPHYLLUM FLABELLATTJM, Lalillardiere, WilJdenow, 

 HooTcer, not Brown. (Hymenophyllum nitens, Brown.) — A lovely Fern, 

 with dense, glistening, pinnate fronds. Pendent from trunks of Tree Ferns, 

 other trees, and from holes in rocks and roots of trees. Native of Tasmania 

 and New Zealand. Length of frond from six to twelve inches. 



HYMENOPHYLLITM HIESXTTITM, Sioartz, Willdenow, Raddi, 

 Sedwig, Hooher. (Hymenophyllum venustum, Desvaux. Trichomanes 

 hirsutum, Linnceus.) — A very delicate small species, with narrow, pinnatifid, 

 transparent fronds, hairy. Pendent from trunks of trees. Native of 

 Jamaica, Trinidad, and Organ Mountains. Length of frond from three to 

 nine inches. 



HYMENOPHYLLUM NUDUM (?) Besvaux.—A. small Fern, with 

 erect, broad, bipiunate fronds, fringed with hairs. Native of the West 

 Indies. Length of frond from an inch and a half to three inches. 



HYMENOPHYLLUM PLUMIERI, Soolcer and GreviUe. (Filicula 

 digitata, etc., Plumier.) — Nearly allied to Hymenophyllum ciliatum; fronds 

 larger and more remote. A handsome Fern. Native of Hispaniola and 

 Columbia. 



HYMENOPHYLLUM EARUM, Brown, Hooher. (HymenophyUum 

 fumarioides, Bory, Kaalfass, Kunze. H. australe, Willdenow. H. semi- 

 bivalve. Hooker and GreviUe. H. imbricatum, Colenso.) — Small pendent 

 fronds, bipinnatifid, densely matted, somewhat resembling Hymenophyllum 

 Tanhridgense. Native of Tasmania, New Zealand, Chili, South Africa, 

 Bourbon, and Mauritius. Variety imbricatum has pellucid fronds, with 

 overlapping pinnae. 



HYMENOPHY'LLUM VALVATUM, Hooker and Gremlle.—PL lovely 

 species, growing on trunks of trees, with ovate, attenuated, dark green, 

 tripinnatifid fronds, beautifully undulated. Stalks black and wiry. Native 

 of Columbia, at an elevation of from three to six thousand feet above the 

 sea. Length of frond from sis to twelve inches. 



TEICHOMANES ACHILL^IFOLIUM, WiUdenoio. (Trichomanes 

 rigidum, Swartz, Hedxoig. T. mandioccanum, jRaddi. T. pyramidale, 

 Wallich. T. obscurum, Blume.) — A handsome tufted Fern, with quadripin- 

 natifid, erect, smooth fronds. Native of Jamaica, Dominica, Brazil, Peru, 

 Quito, Mauritius, Philippine Islands, Ceylon, etc. Length of frond from 

 twelve to eighteen inches. 



TRICHOMANES ALATUM, Swartz, Willdenow, Hooker and GreviUe. 

 — A handsome tufted Fern, growing on trunks of trees, having lanceolate, 

 deep green, subtripinnatifid fronds. Native of Jamaica, St. Vincent, Trinidad, 

 and Hispaniola. Length of frond from nme to fifteen inches. 



