258 FILICES, ' [Polypodium 



Cl. III. ACOTYLEDONEiE. 



Ord. I. FILICES. 



TrIB. I. POLYPODIACE^. 



1. POLYPODIUM. L. 



1, P, vulgare^ L, — E. Bot, t, 1149, — Ph, — Rich, App. p, 39 ,S. Americanum; minus, 



fronde angustiore, laciniis remotioribus. P. Virginianum, Linn. Sp. PL p. 1345 {excL 



Syn, Plum. §c.). Ph. — 7. occidentale ; frondis laciniis acutis acute serratis. P. vulgare, 

 Virginianum, Bong, Veg. Sitcha, p. 57. 



Hab. /3. Canada. Pursh, Mrs Perceval, Mrs Skeppard; to the Saskatchawan and Slave River. Dr 

 Richardson. Drtimmond. — y. N. W, Am. On rocks and decayed wood, common near the confluence of 

 the Columbia with the sea. Douglas. Sitcha. Mertens. {in Herb. no5?r.)— The common state of this plant 

 throughout the United States and in British N. America, is to be smaller than the European form, with 

 narrower and more oblong fronds, with lacinias more distant, and the sori nearer the margin. This is no 

 doubt the P. Virginianmn of Linmtus and authors, as far as regards the Virginia plant, on which Linnaeus 

 founded his character : — the synonyms which he has adduced, or at least that of Plumier, belong I think 

 rather to the following. The Columbian and Sitcha variety is different from any I have seen, yet cannot in 

 my opinion be distinguished as a species from this, which we know is a very variable Fern. Mertens' plant 

 from Sitcha described by Bongard, is identical with the Columbian one. 



^.P, intermedium; fronde ovali-lanceolata membranacea pellucida fere ad rachin pin- 

 natifida, laciniis oblongis acutiusculis serratis glabris, venulis (3-4') distinctis liberis vel 

 rarissime sub margine anastomosantibus, soris ovalibus solitaris. Hook, et Am. Bot. of 

 Beech. Voy. p, 405. Plum. Fil. p. 60. t. 77. 



Hab. Columbia. Dr Scolder. — On referring to Plumier's figure above quoted (a W. Indian Plant), to see 

 how far it agreed with any N. American Fern (Linnasus having referred to it as his P. Virginianum), I find 

 it agrees so well with this plant, that I have little hesitation in considering it the same ; and the more so 

 from observing that the species is also a native of St Vincent, whence I have received specimens from the 

 late Mr Guilding. 



3, P. (Marginaria) Californicum^ Kaulf. — Hook, et Grev, Ic. FiL L 56. Hook, et Am. 

 Bot, ofBeechey's Voy, p. 161 and iO 5, 



Hab. N. W. America. Moist Rocksj Columbia river. Dr Scouler, 



4. P. Phegopteris, L. — a. minus; subrigidum, pinnarum infimarum laciniis omnibus sub- 

 integerrimis, venulis fere omnibus simplicibus, soris densis marginatisj E. Bot, t. 224. 

 Schkukr, FiL Tab. 20. — fi. iw^erwicJtM/w; tenuius, pinnarum inferiarum laciniis crenato- 

 lobatis venulisque furcatis, soris submarginalibus. — P. connectile? Mx. — Willd. — Ph^ — y. 

 majus ; tenue, pinnis distantibus inferiarum plurlum laciniis remotiusculis elongatis pin- 

 natifidis, venulis plurimis furcatis. — P. Phegopteris, 7. Schkukr, FiL t. 20, b. — P. hexa- 

 gonopterum, M^, Am, ^. p. 271. Ph. — P. cruciatum, Kaulf. {fide Presl.) 



