xxu 
Edward Newman 
than the first lower, both slightly longer than the second 
and following pinnules : ultimate divisions without a point. 
Obs. — This genus lias been carefully defined by Schott under the 
name of Thelypteris ; but I object, for the reason before stated, to 
the transfer of a name from a species to a genus. 
Hemestheum Thelypteris. 
Acrosticlium Thelypteris, Linn. Sp. PI. 1528 ; Bolt. Fil. 
Brit, part ii. 78, t. 43, 44 ; With. Bot. Arr. Veg. G49. 
Polypodium Thelypteris, Linn. Mant. 505; ILuds. FI. Ang. 
457 ; With. Arr. 776 ; ? Light f. FI. Scot. 674. 
Polystichum Thelypteris, Both. FI. Germ. iii. 77. 
Aspidium Thelypteris (Swartz), Sm. E. F. iv. 285 ; Mack. 
FI. Ilib. 340 ; Hook, and Am. 569, (excl. syn. “E. B. 
1018,” which represents G. Phegopteris). 
Lastrea Thelypteris (Borg), Neivrn. N. A. 19, F. 183; Bab. 
409. 
Thelypteris palustris, Schott, Fil. 
Rliizoma creeping ; fronds of two lands, both erect, on 
long smooth stipes, lanceolate, pinnate ; pinnae pinnatifid, 
lower pinnae equalling the rest in length ; pinnules blunt, 
entire, in fertile fronds with convolute margins covering 
the capsules; lateral veins branched; involucre small, and 
present on scarcely more than half the clusters ; capsules 
in circular clusters, scarcely marginal. 
In marshes, very local. 
Hemestheum (Oreopteris) montanum. 
Pol hum fragrans, Linn. Mant. ii. 307 ; Huds. FI. Ang. 
/ 57 , (2nd edition). The reader will see that the al- 
tered description no longer agrees witli L. rigida. 
1781. Polypodium montanum, Voglcr, Diss. de Pol. mont. 
1788. Polypodium Oreopteris, Ehrh. Beitr. ; Dicks. Tr. 
Linn. Soc. i. 181, (1791); With. Arr. 775. 
Polipodium Thelypteris, Bolt. Fil. Brit. 40, t. 22. 
Polystichum montanum, Both. Flor. Germ. iii. 74. 
Aspidium Oreopteris (Swartz), Sm. E. F. iv. 286, E. B. 
1019; Mack. FI. Nib. 339 ; Hook, and, Am. 569. 
Lastrea Oreopteris, Newm. N. A. 17, F. 187 ; Bab. 410. 
