BLRCIINUM. 61 



Dubious Species of this Subsection (fronds pinnate), lohose 

 immediate affinities are unknoivn to us. 



30. BI. validum, Fee ; " fronds lanceolate pinnate suboli- 

 vaceous pinnatifid at the apex glabrous, stipes slender sul- 

 cate straw-colour with three fascicles of vessels, ])iiHKe lan- 

 ceolate arcuate patulous acute sessile ultimate ones deflexed 

 conform minutely serrulate at the max'gin cordate at the base, 

 lower auricle large {supra stipitem posita aperturam rotun- 

 dam cunstante), nervils distant pellucid at the apex, indusium 

 thin coloured, sporangia small, annulus narrow with 18-20 

 articulations, spores ovoid." Fee, Gen. Fit. p. 74. 



Ilab. South America {llerh. Mougeot.). — "Ad Bl. Brasiliense accedens." 



31. Bl. helveolum. Fee; "fronds very glabrous yellowish 

 pinnate pinnatifid above acuminate, stipes slender pale-red- 

 dish scaly at the base, rhizome creeping throwing out many 

 fibres, pinnoc lanceolate arcuato-acuminate ultimate ones de- 

 flexed, terminal one elongato-linear subcordiform at the base, 

 the margin scabrous, nervils rather remote slender, sporo- 

 thecia abbreviate situate in the middle of the pinncc, indu- 

 sium coloured, sporangia small, annulus of 14-1 G articula- 

 tions, spores subreniform." Fee, Gen. Fil. p. 75. 



Ilab. " Brazil, Blanchet, n. 2243. Caracas, Moritz, n. 17." 



32. Bl. acuminatum, Fee; "fronds elongate pinnated gla- 

 brous lanceolate, stipes and rachis yellowish, pinnaj many 

 narrow-lanceolate inferior ones deflexed much acuminated 

 subcordate at the base sessile, intermediate ones connate, 

 superior ones pinnatifid, margin scabrous, nervils pinnated 

 very crowded, sporothecia neitiier attaining to the base nor 

 the apex narrow, sporangia small, annulus narrow of 14-1 G 

 articulations, spores numerous subreniform." Fee, Gen. Fil. 

 j9. 75 {not Sturm). 



Ilab. Columbia, Moritz. 



33. Bl. imjjressum, Fee; "fronds lanceolato-linear pinnate 

 glabrous, stipes yellowish, pinucB sessile horizontal firm opaque 

 sublinear cordate at the base obtuse, nervils impressed 

 fragile when dry, sporothecia extending from the apex to the 

 margin brownish prominent, indusium thick coloured l)road- 

 ish persistent, sporangia ovoideo-obliquo subauriclcd, spores 

 minute ovoid." Fee, Gen. Fil. p. 75. 



Hal), Columbia, Linden, n. 286. 



