DICKSOMA. 79 



8J). I), nd/tf/iftosa, K;inll". ; lioiids spreading ani])le Iripin- 

 iiatc, ])innji; oblong obtuse liairv especially beneath, the seg- 

 n)ents oblong (lentato-])innatifid especially on the superior 

 margin membranaceous funi often brown and glossy above, 

 sori very small chiefly on the superior margin in the sinuses 

 of the sharj) teeth cu]i-sha])ed com])ressed (from drying?), ra- 

 chis and costa clothed with rufous down. (Tah. XXVI I. A.) 

 — Kaulf. Kntnn. Fit. />. 226. 



H;ib. Brazil, Hio Jaiuiro, (Kaulf iias); Gardner, n. ;j()72. Tcjiica, Mar- 

 lins. Bahia, y//««(7u'/, (/. '2'2;3G. \'cia Cruz, Mexico, />?»f/^7i, «. 7(5, aii'l 

 Chiapas, Coliinil)ia, LimUm,n. 1537. Peru, Mathews, n. 109(> and 1K29. 

 Guatemala, ^7{?»(H<'r, .Jamaica, Purdie, Bancroft. — Apparently an abundant 

 s|)ecies in llic above-mentioned localities, and, in my opinion, a very dis- 

 tinct one. The pinnae and se}>fments are remarkably uniform in size and 

 structure, and the sori amongst the smallest of the genus. 



40. D. ani/iriscifoiia, Kaulf.; fronds ample spreading tri- 

 ])iunatc, pinnte ovato-oblong pinuatifid nearly to the costa, 

 segments oval-oblong obtuse dentate soriferous in the axils 

 of the teeth, rachis glabrous, costa and veins slightly hairv. 

 (Tab. XXVII. B.)—Kau//. En. Fit. p. 227. Kze. hi Limuca, 

 V. V. p. 45. Siehcr, Sifii.Fil. n. 60. Fl. MLvt. n. 314. Chei- 

 lanthes, Bory in Wiild. Sp. PI. v. p. 461. 



Hab. Bourbon, Bory. Mauritius, Bojer, Sicber, Telfair. — A species 

 with ample spreading IVonds much resembling those of Z>. ruhiginosa ; but 

 more delicate and very slightly hairy. 



41 . D.punci'iloba, Hook.; fronds lanceolate bipinnate mem- 

 branaceous, pinnnc lanceolate rather obtuse deeply pinnatilid, 

 the segments oblong obtuse toothed or again pinuatifid, sori 

 very small, one in the sinus or upper margin of each segment 

 (rarely more), rachis and costa glanduloso-pilose. — Nephro- 

 dium punctilobum, Midi. Flor. Bor. Am. ii. p. 268. Dick- 

 sonia pubescens, Schklt. Fil. t. 13. D. pilosiuscula, WilUI. 

 Sp. PL v. p. 484 [not Raddi). Hook. Fl. Bor. Am. ii. p. 264. 



Hab. United States and Canada, Michaux and others. — Very distinct. 

 General appearance resembling Asplenium Filix-fccmina, L., but of a pale 

 straw colour when dry, the stipes red-brown. This is the only species of 

 Dicksouia yet known to inhabit temperate or cold climates, and it extends 

 as far north as Canada. 



42. D. appoidiciildid, Wall. ; everywhere esjiecially be- 

 neath j)iloso-glandidar, fronds lanceolate tall much attenuated 

 jit the base bi])innate, ])inn;e narrow oblong almost linear 

 })innatifi(l, the segments oblong entire or bi-trifid the base 

 decurrcnt on the rachis, sori large globose co])ious u])on the 

 shortened teeth of the segments. (Tau. XXA'Il. C.) — Wdll. 

 Cat. n. 65. 



Ilab. Nepal and Kamoun, WaWiih. — A most ilistinct species, in gene- 



