Remarks on Certain Plowering Plants. 145 



P. lucens. Bigel. Fl. Bost. Occurs ia Fresh Pond, Cam- 

 bridge ; and is imdistinguishable from the foreign plant. 

 It is distinguished from P. prselongus by its petiolate leaves ; 

 those of the former being sessile, amplexicaul and strikingly- 

 waved at the margin. P. prselongus is also an inhabitant 

 of Fresh Pond. Sir W. J. Hooker, in his Flora of Boreal 

 America, 2, 172, remarks that he has P. prselongus from 

 Boston, but has never received P. lucens from America. 

 He therefore considers that the P. lucens of Torrey, (^Fl. 1, 

 197) is probably P. prselongus. This view is adopted by 

 Dr. Torrey, in his recent l>\ew York Catalogue, where the 

 '• P. lucens of American botanists," is referred without 

 doubt to P. prselongus. The P. lucens of our Flora is, 

 however, as above remarked, the true plant; while we have 

 also P. prselongus, which was not noticed by Bigelow. 

 Mr. Oakes retains P. lucens, in his Catalogue of the Ver- 

 mont Flora. 



P. Robbinsn Oakes. Occurs abundantly in Fresh Pond. 



Aspidium Bobttn (mi?ii) — rather large, outline oblong, 

 stripe chaffy : frond smooth ; somewhat 3-pinnate ; pm- 

 nules oblong-ovate, acutish, pinatified : segments sharply 

 toothed, teeth mucronate : sori rather small, distinct some- 

 what reniform. Nephrodium cristatum, Michx7 Fl. 2, 

 2m.— Hah. Rocky Woods, Lowell. W. Boott, Esq. 



A. cristatum, Sw. — To this it seems to me our A. lan- 

 castriense must be referred. Willdenow remarks under A. 

 cristatum, that he has Pennsylvanian specimens. Avhich 

 agree perfectly with the European plant. He had seen no 

 specimens of A. lancastriense. I can find nothing to dis- 

 tinguish our Massachusetts plant from English specimens 

 of A. cristatum. From this however the plant above des- 

 cribed as new. seems wholly distinct. 



Art. y. Some Remarks on the Flowering of the Astrapce^a 

 Wall'ichW and viscbsa. By .T. W. Paulsen, formerly gar- 

 dener to J. W. Perry. Esq. Brooklyn, New York. 



I send you a few remarks on the Astrapse'aWallichn and 

 viscosa, which I made two years ago, with the intention of 



VOL. IX. NO. IV. 19 



