94 xN'EPllRODIUM, § LASTREA. 



them; but as there is considerable diversity in size and form, I cannot be respon- 

 sible for the accuracy of my concUisions. The caudex is erect, thick and large 

 for the size of tlie plant, densely rooting, with wiry fibres. Stipites tufted, 4 inches 

 to a foot long. Fronds 5-6 inches to almost a foot in length, blackish-green when 

 <lry. PinnjE more or less deeply pinnatifid ; the segtnents more or less falcate. 

 I'erbaps its nearest affinity is N. falcilobum, Hook. — Mr. J. Smith's Lastrea vis- 

 cona, nowhere noticed but by giving it a name, has no marked character or feature 

 by which to distinguish it from the present plant, or two or three of its allies. 



5S. N. (Lastrea) Iimbatum,J)esy, ; caudex sub repent very 

 irregular copiously rooting scaly, stipes short 3 inches long 

 to the commencement of the dwarfed pinnules slender dark 

 brown at the base the rest as well as the entire rachis bright 

 stramineous glossy, frond more than 3 feet long firm-mem- 

 branaceous minutely resinoso-punctate beneath long-lanceo- 

 late acuminate pinnated, pinnse opposite sessile 5-6 inches 

 long sessile oblong-lanceolate acuminate with a gland at the 

 base beneath, 6-8 pairs of the lowest pinnse much dwarfed 

 and lachiiated deeply almost to the rachis pinnatifid with ob- 

 long obtuse subfalcate segments crenato-dentate at the mar- 

 gin, veinlets 6-8 on each side the costule simple, sori margi- 

 nal on the teeth of the crenatures at the apex of the veinlet, 

 involucres suboblong-reniform membranaceous blackish- 

 brown at length reflexed. — Aspidium, Siv. Syn. Fil. p. 50 and 

 251. Willd. Sj). PI. y.p. 252. Metten. Aspid. p. 55. Las- 

 trea, Moore. Amauropelta Breutelii, Kze. in Sc/ik. Fil. Suppl. 

 i. p. 109. /. 51. Aspidium, Mett. Aspid. p. 85. 



Hab. Gaudeloupe, L'Henninier, in Herd. A'ostr. St. Kitts, Breutel, in Herb. 

 Nostr., from Kunze (not Jamaica, as stated by Mettenius). — I believe a very rare 

 Fern ; I possess it only from the two localities already published, namely, from 

 Guadeloupe and St. Kitts. The constantly opposite pinnae, with a very conspi- 

 cuous gland at its base beneath, and the position of the sori at the apex of a 

 veinlet, and the peculiar shape of the involucres, are all remarkable in this plant, 

 and induced Kunze to constitute of it a new genus. 



59. N. (Lastrea) Sprengelii, Hook.; '^ fror.ds pinnate, 

 pinnee deeply pinnatifid opposite patent, segments linear-ob- 

 long entire pinnatifid lowest ones longer, the basal one be- 

 neath of the lower pinna3 subauriculate, involucres hairy the 

 margin glandulose." Kaulf. — Aspidium Sprengelii, Kaulf. 

 En. Flip. 239. Metten. Aspid. p. 81. Aspid. glanduliferum, 

 Karst. ill Linnaea, xxi. p. 369 [fide Metten.). Aspid. the- 

 lypteroides, Sieb. Martin, n. 355 [fide Kaulf.). 



Ilab. Martinique and Porto Rico (Kaulf), Antilles, Schwanecke, Sieher. Co- 

 liiml)ia, Karslen {Klotzsch). St. Vincent, L. GuiliUng, in Herb. Noxtr. — I am 

 not familiar enough with this plant to pronounce an opinion on it. The author. 

 Kaulfuss, does not, in his specific character, allude to the very evident gland, or 



