314 CHAEACTEES Or TEIBES AND GENEEA. 



Lomaria spondimfolia and L. limonicefolia. This species is 

 also remarkable in producing on its sarmentum -what may 

 be termed an adventitious growth, so unlike the true fronds 

 that, without good evidence, it would be difEcult to believe 

 that they are productions of the same plant. It is about 

 3 or 4 ruches long, and not unlike some multifid species of 

 Davallia or Gheilanthes. Wallich named it Davallia acMllei- 

 folia {Hook. Sp. Fil, 1, t. 56 cl), seemingly not aware that 

 it grew on Stenoahlcena. Tab. 209 of Beddome's " Ferns of 

 British India" represents a state of this from Burmah. 

 Its mode of production may be considered analogous to the 

 growth observed on the stipes of some species of Alsophila, 

 which Kaulfuss described under the name of Tricliomanes ? 

 cormophyllum. 



180.— Salpichljena, J. Sm. (1841). 

 Blechnum sp. Kaulf. ; Hoolc. Sp. Fil. 



Vernation sub-fasciculate, decumbent. Fronds bipinnate, 

 flexuose, climbing, indefinite ; pinnre 1 to 2 feet long ; pinnules 

 2 to 8 pairs, linear or broad-lanceolate, acuminate, 6 to 16 

 inches long, -J- to 2 inches wide, smooth, shining, entire. Veins 

 forked ; venules combined in the sterile by a transverse 

 marginal vein, and in the fertile by a transverse costal 

 vein, which bears the sporangia, forming a linear, trans- 

 verse, sub-costal sorus. Indusimn laterally attached on 

 the exterior side of the receptacle, involute, vaulted, cylin- 

 drical, its base partially sporangiferous, its inner margin 

 free, becoming reflexed, rigid, separating in pieces, after- 

 wards increasing in size. 



Type. Blechnum volulile, Kaulf. 



Illust. Hook, and Bauer, Gen. Fil., t. 93 ; Moore Ind. 

 Fil., p. 12 A. ; J. Sm. Ferns, Brit, and For., fig. 109. 



