the outer tapering or attenuated, toothed, final lobes toothed, 1 - 2 li. L, 1 li. w., veins branched in the 

 lobes ; 



sori one to each lobe ; 



involucres fully immersed, the mouth widely dilated, deeply depressed transversly ; re- 

 ceptacles more or le*ss protruding. 



Very common in forests above 4,000 ft. alt. on the trunks of trees. Variable in size and habit of 

 growth, but not to be mistaken in any of its local forms. In the common Jamaica state the root-stock 

 is short, upright with the fronds tufted at the end. I gathered however on the slopes of Catherine's 

 Peak, where the species is particularly plentiful, a large variety of thicker texture and strong creeping 

 root-stock, with wiry stalk scattered along it. In var. T. ptilodes, V. D. B., gathered in Jamaica by 

 Wiles, the fronds are a foot long and 3 in br., stalks tufted, pinnae pinnately divided, 2 in. 1., in. br., 

 lobes toothed, texture delicate, and rachis winged. 



19. T. Bancroftii, Hook, and Grev. 



Stalks several, tufted, erect, 1 - 2 in. 1., broadly winged, arising from a short, erect, minutely 

 scaly root-stocks ; fronds erect oblong 1-3 in. 1., \ - f in. w., firm, dark green, mostly glabrous and 

 rather glossy, base truncate, apex rounded, pinnately divided, the rachis broadly winged ; pinnae close, 

 •ften overlapping, or the lower a little apart, spreading, oblong, h in. 1., 2 - 3 li. w. the ends rounded, 

 and the sides with a few blunt teeth and wavy outline ; veins pinnate ; 

 sori 1 to 5 to a pinna, around the outer margin ; 

 involucres immersed to the expanded rim, receptacles protruding. 



Common in forests on decaying logs from 1,500 to 4,000 ft. alt. The fronds and stalks are nearly 

 equal in length, and the margins particularly full and wavy. In places it forms considerable masses, 

 but the individual plants grow in separate erect tufts. It varies in size, and from the higher altitudes, 

 is often only an inch or so long, but fully fertile. 



20. T. pyxidiferum, Linn. 



Stalk slender, firm, \-2 in. 1., slightly margined in the upper part, scattered on a slender, wiry, 

 free-creeping, hairy root-stock ; fronds variable in size and form, less than 1-4 in. 1., \-2 in br. thin 

 pellucid, without hairs and rather glossy, pale or dark green, apex pointed, rachis winged, pinna? com- 

 posed of few segments or very compound ; 



sori generally forming a single or partly double row on each side of the rachis in the upper 

 part of the fronds ; 



involucres ; tube cylindrical, free but narrowly margined, with a broad, expanded, sometimes 

 free, rim to the mouth ; receptacles often much protruding. T. brasiliensis, Desv. 



General from 500 or 1,000 ft. alt. up to the slopes of the highest ridges, on the stems of trees. 



21. T. tenerum, Spreng. 



Stalks \-\ in. 1. very slender, scattered on the thread-like, free-creeping root-stock, fronds pendent, 

 2-6 in. 1., \-\\ in. br., without hairs, pale-green, delicate and flaccid, twice or thrice pinnate, variable 

 and irregular in outline ; rachis thread-like, margined only at the top ; pinnae lax, pendent, 

 sori sparse, usually confined to the outer inferior of the axillary pinnules ; 

 involueres winged, rim expanded ; receptacles long protruding. T. ayigustatum, Parm. 

 Rare in forests on the stems of tree-ferns at about 6,000 ft. alt., gathered on the slopes of John Crow 

 Peak and above Morse's Gap. A much more delicate, pendent, and finely-cut species than the last from 

 which it is easily known by these characters, and the hair-like rachis being devoid of membrane, except 

 at the top. '1 he colour is a bright straw-green. 



22. T. trichoideum, Swartz. 



Stalks very slender, channelled not margined, 1-1^ in. L, scattered on the thread-like, free creeping 

 rootstock ; fronds feathery, dark-green, 3-5 in. 1., £-lf in. w., twice or thrice pinnate, all the parts hair- 

 like ; 



sori on the inferior lobes ; 



involucres stalked, not margined, rim expanded ; receptacles protruding. T. capillaccum, Sw. 

 Exceedingly abundant in forests, covering the trunks of trees and tree-ferns, above 5,U00 ft. alt. 

 The most finely cut species of all, the parts being as fine as hair, with no membrane at all except to the 

 very slender ultimate divisions. On the higher slopes of the Blue Mountain range this species forms 

 a saost beautiful feature of the forest vegetation. 



23. T. scandens, Linn. 



Stalks 2-4 in. 1. strong, at first with rusty scales becoming quite bare, scattered on the strong 

 free-creeping densely reddish hairy,root-stock ; fronds almost pendent, |-1£ ft. 1. 3-8 in. w., ovate lance- 

 ak^ped, pointed, membranous, bright silky- looking golden green, more or less covered with rusty hairs, 

 Hbree or four times pinnate ; rachis free of membrane except at the top; 



sori copious, often occupying nearly all the teeth, or at least the inferior ones ; 

 involucres immersed and winged to the expanded rim ; receptacles generally protruding. 



Very abundant in the forests of the lower mountains, from 1,000-2,000 ft., and extending up- 

 wards, though much rarer, to 6,000 ft., alt , and distributed well through the island. In the eastern 

 parishes at the lower elevations, it seems almost exclusively confined to trunks of Oyathea elegans. 

 Among the larger species this is unrivalled for its gracefulness and beauty. 



24. T. radicans, Sw. 



Stalks strong, narrowly margined ; fronds ft. 1., 2-5 in. w., oblong-lance-shaped, long pointed, 

 •embranous, glabrous, very dark green, three or four times pinnate, rachis and ribs margined, pinnae 

 hbAtous, spreading : 



sori often copious, in the angles ; 



involucres cylindrical, free, the mouth slightly two-lipped ; receptacles barely or much pro| 

 trading. T. speciosum, Wilid. 



