54 nr.ECHNUM. 



sile elongato-linear acute entire cordate at the base plane 

 beneath, veins thickish, sori terminating below the apex of 

 the pinnce, indusiuni retiexed." Pr. Tent. Pterid. p. 103 {nut 

 Gaiulichaud) . — Blechnopsis elongata, Pr. Epim. Bot. p. 117. 



llab. Manilla, Meyen. — " Affine Bl. orientali, differt prrccipue pinnis basi regii- 

 laiiter cordatis, iudusio nigro-fusco, fasciculis vasorutn rachidis undecim." 



20. Bl. serrulatum, Rich.; caudex thick rough suberect 

 scaly, stipes a span to a foot long glossy terete but furrowed 

 in front, pale-brown, frond oblong acuminate 1-3 feet long 

 suljcoriaceous firm glossy pinnated, joinnge articulated on the 

 rachis numerous linear-oblong sessile sometimes obtusely 

 acuminated sharply serrated at the margin sessile obliquely 

 subcuneate at the base rarely truncated often opposite, sterile 

 pinnae more tipproaching to elliptical and more distinctly ser- 

 rated, veins close compact simple or rarely forked forming 

 patent prominent lines on the under side, sori continuous 

 extending from near the base to near the apex close to the 

 costa or midrib. — ^' Rich, in Act. Soc. Nat. Par. i. p. 114." 

 Mich. Fl. Bor. Am. ii. p. 264. Siv. Syn. Fil. p. 113. Schkh. 

 ML 100. t. 108 {very good). Willd. Sp. PL x. p. 411. Diet, 

 de.s Sc. Nat. cum ic. {good, but reduced in size). Klotzsch 

 in Linnoiu, xx. p. 350. /. Sm. in Loud. Journ. Bot. \. p. 198. 

 Mett. Fil. Hart. Bot. Lips. p. G3. Bl. angustifolium, Willd. 

 Sp. PL y. p. 414. Blechnum calophyllum, Langsd. et Fisch. 

 FiL t. 23 {excellent). Willd. Sp. PL w. p. 415. Blechnum 

 stagninum, Fil. Bras. j). 54. t. 62. Blechnum angustatum, 

 Schrad. in Goett. Gel. Anz. 1824, p. 87. 2 {Presl). Blechnopsis 

 serrulata, Pr. Epim. Bot. p. 119. 



Ilab. "River A'lsa-hatcha, Florida," Michaux ; East Florida, Mr. S. B. Buckley 

 {in Herb. Nostr.), the only locality known on the N. American continent. 

 S. America; Dominica, Dr. Imrny, n. 77. Trinidad, Purdie, Cruger. Guaya- 

 quil, Ilcpnice {fide Presl). Isthmus of Panama, Fendler, n. 399. Abundant in 

 British, French, and Dutch Gnmia., Richard and Robert Scliomburgk {n. 1-136), 

 C. S. Parker, RoUiery, Leprieur, Spli/gerber, etc. Province of I'ara, Spruce, 

 v. 35*, and n. 653 ; thence throughout Brazil, Raddi, MartiiiK, Gardner («. 183), 

 IV.Lobb, etc., to South Brazil, Selloiv, to Porto Alegre, and llha IjOS Marinheiros, 

 Rio Grande do Sul, Mr. Fox. — 1 am not so fortunate as to possess an authentic 

 specimen of j\Iichau\'s first discovery of this plant in the southern states of N. 

 America, Florida (doubtless its northern limits), but from the same State, and pro- 

 bably tlie same locality, Dr. Torrey has favoured me with a fine specimen, ga- 

 thered by Mr. Buckley, and the species may thence be traced in greater or less 

 abundance south to Rio Grande do Sul, in S. Brazil. It is also found at Guayaquil, 

 on the authority of Presl. There is a wide space between these countries and New 

 Holland and the Malayan Archipelago; yet these latter countries do afford a 

 Blechnum, which has received other names, but which, with the utmost care, we 

 have sought in vain to distinguish from the present, namely, the one next de- 



