OnnEK 151). FIL1CES. 42b 



3 A. TRAPEZiordRME. Frond imple, decompound, glabrous, 2f; segment? light green, 



large (12 18" x 6 10"), trapezoidal, some of them fan-shaped ; sori lunulate on 2 of 

 the 4 margins ; stipe jet-black. Superb ! Jamaica (Rev. S. B. Wilson). 



4 A. SANCTA-KATRINA, has large obliquely fan-shaped segments cut-lobed and toothed, 



with the veins uncommonly distinct. Cultivated in Bridgmau's Garden, Astom. 



5 A. Capilliis-Veneris L. Delicate, bright green, 618', smooth, thrice pinnate at 



base ; segments ronnd-cuneate, lobed, or the sterile toothed; sori reniform, one on 

 each lobe ; stipe and branches capillary. Lime-rocks, S. : rare. Eur. Cultivated. 

 B A. CUNEATCM. Very delicate, If, 4 times pinnate at base, bright green; segm. very 

 numerous, sharply cuneate, 2-4-cut-lobed, 4 6" ; sori ronnd-renifonn. Brazil. 



7 A. ^ETHIOPICUM, TINCTUM and CALLOPODES, are greenhouse species or varieties, with 



roundish segments more or less oblique and lobed, 47", with rounded sori, 612'. 



8 A. ALATUM, has the rachis narrowly winged, eegm. sessile, obovate-long-wedge-shaped 



at base, coarsely toothed at apex. (Greenhouse of Bridgman & Wiegand.) 



A. MACROPHYLLPM. Stipe jet-black, simple, bearing about 3 pairs of large, opposite, 



thick leaflets, and an odd one ; leaflets triang. -hastate, oblique ; sori linear. Jamaica. 



22. DICKSONIA, L'Her. DICKSON'S FERN. Sori marginal, round- 

 ish, distinct, terminating a vein. Indusium double, the proper one cup- 

 shaped, opening outward, the other formed of a reflected lobule of the 

 margin, and opening inward. 



1 D. pllosluscnla Willd. Frond bipinnate, lanceolate, 2 3f, with minute glandu- 



lar hairs ; pn. sessile, lanceolate ; segm. finely pinnatifld, lobes toothed, each with a 

 minute round nnrup. Rocky pastures. Stipe yellowish. 



!4 D. (BALANTIUM; ANTARCTICA. A beautiful tree-fern from New Zealand, 3 20f, 

 crowned with many long, heavy, dark-green, tripinnate fronds ; pn. and pul. sessile; 

 segm. oval, 6-crenate ; sori globular, with 2 distinct valves. (Buchanan's Conserv.) 



23. DAVALLIA, Smith. Sori globous, marginal, on the end of a 

 vein, in a goblet or pyxis, half of which is formed by the scarious indusium 

 opening outward. Root-stock creeping above ground, chaffy. 



1 I>. TENCiFdLiA. Fronds delicate, 6 1(X, tripinnate with few pinnae, triangular-lan- 



ceolate ; rachip narrowly winged ; segments spatnlate, toothed. China. 



2 I>. CANARIENSJS. Hare" 1 s-foot. Fronds 3-parted, decompound, ultimate segments J 



liptical, decurrent, bearing 1 pyxis. 1 2f. Canaries. 



3 I>. DISSKCTA, is very different, irregularly pinnatifld, or almost entire. 



24. WOODWARDIA, Sm. Sori straight, linear-oblong, on transverse 

 veinulets, parallel to the mid-vein, in 2 rows. Indusium from the same 

 veinulet, opening inwardly. 



LORINSERIA. Fronds of 2 forms, net-veined throughout No. 1 



ANCHISTEA. Fronds all similar, netted only close to mid-vein Nos 2, 3 



1 W. aiigusttfolla Sm. Fertile fronds pinnate, with distant linear pinnae covered 



with the fruit beneath ; sterile lance-oblong in outline, deeply pinnatifld ; segm. ob- 

 long, 2 3f. Resembles Onoclea. Mass. (Dr. S. Bowles), and S. 



2 \V. Virgiiiloa hm. Fronds glabrous, lanceolate, pinnate; pinnae remote, pinna- 



tifld, lance-linear; segments oblong, obtuse, 2 3f. Swamps, E. and S. 



3 W. JAPOMCA. kachis chaffy ; frond triangular, as broad as long ; pinnae lanceolate. 



pinnatifld, witc ovate segments. Bright green. 1 2f. 



25. DOODIA ASPERA. Fronds rough, lanceolate, pinnate, If, in clumps, 

 the caudex a few inches above ground. Pinnae oblong-linear, contiguous, with spines- 

 rent teeth. Sori in 1 or 2 rows each side. D. CAUDATA has linear-lanceolate, pinnate 

 fronds, with remote serrate segments, the terminal one elongated. Boih from Australia. 



