ni-:p)iuodh:m, § lastrea. 95 



" aeropliore," wliich Metteiiiiis notices ; nor does my authentic specimen from 

 Schwanecke exhil)it it ; nor do I find the trace of an involucre. But tiie gland 

 is very conspicuous in a St. Vincent's plant in my herbarium ; yet, in both, several 

 pairs of the lower pinnit; are dwarfed as in jV. coiiterminum, a circumstance nei- 

 ther mentioned by Kaulfusa nor by ]\lottenius. 



60. N. (Lastrea) thehjpteroiJes, Ilook. ; "stij)es?" (short 

 8-4 inches long in my specimens), " fronds on hoth sides 

 pubescenti-hirsute glandulose l)eneath 1^- foot long oblong 

 attenuated at both extremities pinnated, pinnic sidjopposite 

 ])atenti-divergent sessile with a conspicuous rounded gland 

 (acrophore) at the base beneath, 3-i inches long 8 lines wide 

 from a broader subcordate base or truncate above elongato- 

 oblong gradually attenuated acuminate deeply pinnatifid, the 

 lower ones decreasing in size, segments approximate oblong 

 obtuse obliquely patent coadunate into a wing 1^ line wide, 

 carina from the sinus directed towards the costa, lowest ones 

 largest at the lower base elongated into an auricle overlapping 

 the rachis rarely pinnatifido-crenate, veinlets on each side 6—9 

 the lowest extending to the margin above the sinus, sori in- 

 termediate between the costule and the margin, involucre 

 small reniform ciliated at the margin." Metten. — Polypod., 

 Dcsv. Sicb. SchJecJit. Phegopteris, Fee. Lastrea, Mooi'e. 

 Aspid. thelypteroides, Metten. Asjnd. p. 81 [not Sw.). 



Hab. Mauritius, Sieber, Si/n. Fit. n. 50; lofty mountains of the island, Bojer, 

 Gardner. Bourbon, Herb. Nosfr. from Herb. Mies. Pas. — This species appears to 

 be peculiar to the two islands just mentioned. 



(Patens-_(7ro«jw, Sp. 61-98, scarcely different from the1he\y\)ter\%-gronp, excejit 

 in the generally more vigorous fronds and larger segments of the pinnatijid 

 pinnce.) 



61. N. (Lastrea) patens, Desv. ; caudex creeping under- 

 ground, frond membranaceous or subcoriaceous glabrous pu- 

 bescent and more or less glandulose beneath, ol)long or lanceo- 

 lato-oblong acuminate pinnated, j)innce from a truncated 

 broad sessile base linear-oblong finely acuminated 4 inches to 

 a span long patent deeply (two-thirds of the way to the costa) 

 pinnatifid, segments approximate oblong sul^falcate at the 

 oblique apex obtusely rounded or shortly acute entire or cre- 

 nulate, lowest pair genei-ally larger entire crcnate or pinna- 

 tifid lying parallel with the main rachis, sori copious in the 

 middle between the costule and margin of the segments, in- 

 volucres cordate-reniform subcoriaceous glabrous or pilose 

 ]:)ersistent. — Aspidium, »SV;. <S?/«. ¥U. p. 49. Jn/ld. Sp. PI. 



