48 BLECHNUM. 



foliate or pinnate and bi- or trijugate with the margin scabrous, 

 terminal pinna (very large) oblong-lanceolate rather obtuse, 

 lateral ones subsessile elliptical or oblong ol)tuse or roundish, 

 superior ones often auriculiform, stipes of middling length 

 roughish a little paleaceous at the base, caudex short hori- 

 zontal branched stoloniferous sparingly fusco-palcaceous." 

 Kze. — Link. Hort. Reg. Berol. ii. 'p. 75. Kze. in Schkh. Fil. 

 Suppl. i. p. 128. /. 57. /. 2. Mett. Fil. Hort. Lips. p. 62. 

 Liebm. Fil. Mex. p. 86. 



Hab. Brazil, Selloiv (Presl). Cumana, Columbia, Moritz, n. 126. Mirador, 

 Mexico, Liehmann, Linden, n. 72, and Galeotti, n. 6302 {all in Herb. Nosh:). 

 Guatemala, Skinner (in Herd. No.str.). — I have no well authenticated specimen 

 of this species in my herbarium, but Liebniann's specimens quite agree with the 

 figure and description of Kunze. It is probably named intermedium as forming 

 the connecting link between some of the pinnated vars. of Bl. Lanceola and our 

 next species, Bl. (/racile. But it is indeed a much larger and stouter plant than the 

 former, has an obtuse base to the terminal pinna, and the lateral pinnae are more 

 fully developed, but not always obtuse. It will be more difficult to distinguish it 

 from Bl. gracile. 



11. Bl. gracAle, Klfs. ; "frond 4-5 inches pinnate 4-jugate, 

 pinnae an inch or an inch and a half long lanceolate subfal- 

 cate shortly petiolate the margin minutely denticulate, ter- 

 minal one 2 inches long on one side auriculato-adpendiculate, 

 sterile ones broader, stipes 4 inches long filiform chaffy at 

 the base, sori close to the costa neither extending to the base 

 nor to the apex sometimes interrupted on the terminal pin- 

 nule." Klfs. En. Fil p. 158.— /'ee. Gen. Fil. p. 73. Kze. in 

 Limma, ix. p. 6. Mart, et Galeot. Fil. Mex. p. 5\. Presl, 

 Epim. PL p. 108. Kl. in Linncea, xx. p. 349. Brack. Fil. 

 U.S. Expl. Exp. p. 129. 



Hab. Brazil (Olio, specimen above characterized by Kaulfuss), Sellow, 

 Brackenridge. Peru, Poeppig {Kze. in Uerb. Nostr., frond almost a foot long 

 10-jugate), Mathews, n. 1806. B. Guiana, R. D. Sehombm-gk, n. 1177 {Klotzsch 

 in Herb. Nostr.). Mexico, Jurgenson, Venezuela, Fendler, n. 113. — Presl 

 gives several other localities, but I know not what dependence is to be placed 

 upon them : for example, he refers " Gardner, Brazil, u. 184," hither, but 1 liave 

 always considered that plant to be a form of Bl. occidentale ; and on the other 

 liand, he brings under this species Galeotti's Blechnum, n. 6302, which I place 

 under Bl. intermcdiiun. Indeed, I find great difficulty in referring this group of 

 pinnated Blechna to the respective species of the genus. Kaulfuss's description 

 of his Bl. gracile appears to me to accord much better with Bl. intermedium of 

 Link, than with what I receive from Germany as Bl. gracile; and Kaulfuss 

 expressly says of it, "i?/. Lanceola, S\v., et Bl. trifoliatum, Klfs., forte nil 

 quam hacc stirps, a;tate juvenili," which he would hardly have said of the 

 large, multipinnate forms, so often considered to be Bl. gracile. Such, as it 

 seems to me, may more correctly be considered as a passage to Bl. longi- 

 folitim. 



12. Bl. Fendleri, Hook.; caudex very slender creeping or 



