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ADDENDA. 



HYMENOPHYLLUM: DICHOTOMUM, Cavanilles, Sioartz, Willde- 

 now, Hooker. (Hymenophyllum plicatum, Kaulfuss.) — A beautifully crisped 

 and transparent species, with broad, muob-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: FLABELLATUBI, LaUllardiere, Willdenow, 

 Ilooher, 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. 



HYMENOPHYLLLTM HIESUTUM:, Swartz, Willdenow, Raddi, 

 Hedwig, Sooher. (Hymenophyllum venustura, De-waux. 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(?) I)esvaux.—^. small Fern, with 

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

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



HYMENOPHYLLUM PLUMIEEI, Hooher and Grevilh. (Filicnla 

 digitata, etc., Plumier.) — Nearly allied to JJymenopJiylhim cUiatum.; fronds 

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

 Columbia. 



HYMENOPHYLLUM EAEUM, Brown, TTooJcer. (Hymenophyllum 

 fumarioides, Bory, IKaulfuss, Kunze. H. australe, Willdenoio. H. semi- 

 bivalve, Ilooher and Greville. H. imbricatum, Colenso.) — Small pendent 

 fronds, bipinnatifid, densely matted, somewhat resembling Hymenophyllum 

 tunbridgense. Native of Tasmania, New Zealand, Chili, Soutli Africa, 

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

 overlapping pinna3. 



HYMENOPHYLLUM VALVATUM, Hooher and Greville.— A. 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 six to twelve inches. 



TEICHOMANES ACHILLiEIFOLIUM, Willdenow: (Trichomanes 

 rigidum, Swartz, Hedwig. T. mandioccanum, Raddi. T. pyramidale, 

 WalUcli. T. obscurum, Bhime.) — 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. 



TEICHOMANES ALATUM, Swarlz, Willdenow, Hooker and Greville. 

 — ^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 nine to fifteen inches. 



