62 BLECHNUM. 



34. Bl. extensum. Fee; "fronds narrow-lanceolate pinnate 

 at the base pinnatifid above, stipes slender stramineous sul- 

 cated beneath paleaceous below multifibrillose, pinnae lanceo- 

 late inferior ones remote obtusely niucronate scabrously ser- 

 rated cordate, intermediate ones horizontal gibbous above, 

 superior ones falcate, terminal one lanceolate conform, spo- 

 rothecia thick, indusium narrow, sporangia small, annulus of 

 14- IG articulations, spores subreniform smooth." Fee, Gen. 

 Fil. p. 75. 



Hab. Brazil, Claussen. 



35. Bl. Atherstoni, Pappe and Raw.; ''frond pinnate co- 

 riaceous, pinnoe alternate rigid sessile subauriculate cordate 

 linear-lanceolate acute and slightly waved at the margins, 

 lower pinnse remote." Pappe et Raivs. Syn, Fil. Afr. Aiistr. 

 p. 16. 



Hab. South-west of Graham's-town, South Africa, Dr. Atherstone, 1856. — 

 " This species much resembles and stands close to Bl. cartilagineum, S\v." (but 

 Bl. cartilaylneum is not a pinnated species). 



3G. Bl. auriculatum, Cav. ; " fronds pinnate auriculate on 

 both sides at the base, fertile ones narrower." Siv. — Cav. 

 PrcBLl80l,n.647. Sw. Syn. Fil. p. WA. JVilld. Sp. Pl.v. 

 p. 418. Mesotheraa auriculatum, Presl, Epim. Bot. p. 112. 



Hab. Buenos Ayres {Cavanilles). — This seems to be unknown save from Cava- 

 nilles' brief description, and yet so accommodating are Presl's new genera in 

 " Blechnacea; " that it stands without any mark of doubt in his Mesothema, It 

 is probably the Bl. hastatum, Klfs. 



37. B\. denticulatum, Sw.; "fronds linear-lanceolate pin- 

 nate, pinnae ovato-lanceolate striated denticulate with an ob- 

 tuse angle at the base above." Siv. Syn. Fil. jjp. 113 et 311. 



Heb. Teneriffe, Ventenat. — This species seems unknown at the present day, 

 and no Fern corresponding with it is noticed by Webb in his valuable ' Phytogra- 

 phia Canariensis " as a native of Teneriffe. Presl, to whom it is also unknown, 

 refers it to his Blechnopsis. 



38. Bl. appendiculatum., Willd. ; "fronds pinnate, pinnae 

 linear-lanceolate acute unequally dentate sessile auricled on 

 each side at the base." IVilld. Sp. Pl.v. p. 410. Mesothema 

 appendiculata, Pr. Epim. Bot. p. 112. 



Hab. Caracas, Bredemeyer. — A Fern apparently only known to Willdcnow. 



** Fronds bipinnate. (Salpichlaina.) 



39. Bl. (Salpichlaena) voliibile, Klfs. ; caudex thick creep- 

 ing bearing sparse rigid scales, stipites very long and twining 

 over trees to a great height, frond bipinnate, pinntc with 



