314 CHARACTERS OF TRIBES AND GENERA. 



Lomaria spondicefolia 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 difficult to believe 

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

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

 Davallia or Cheilanthes. Wallich named it Davallia achillei- 

 folia (Hook. Sp. Fil., 1, t. 56 d.\ seemingly not aware that 

 it grew on Stenochlcena. 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 Alsopliila, 

 which Kaulrass described under the name of Trichomanes ? 

 cormophyllum. 



180. SALPICHIJENA, /. Sm. (1841). 

 Blechnum sp. Kaulf. ; Hook. Sp. Fil. 



Vernation sub-fasciculate, decumbent. Fronds bipinnate, 

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

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

 inches long, 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. Indusium 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 volubile, Kaulf. 



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

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



