Ferns of British India and Ceylon. 235 



oblong, or oblong in outline, pinnae 6-10 inches long, sessile, about 

 1 inch broad, cut down close to the rachis, glabrous above on the 

 segments, or with occasionally a few distant inconspicuous hairs on 

 the viens, the rachis strigose, frosted beneath on the veins and 

 rachis with minute yellow glandular dots; segments linear, rather 

 distant; veins simple (or the lowest one very rarely forked), 12-14 

 or even more on each side of the costa : sori medial, one to each 

 vein, much immersed, the depression plainest on the upper side, 

 indusium large, persistent, reniform, but appearing orbicular from the 

 overlapping at the sinus. Aspidium immersum, Bl. En. Fil. 156. 

 Xephrodium immersum, Hook. Sp. Fil. 112. Syn. Fil. 263. 



Malacca and the Malay Peninsula. 



(Also in the Philippines and New Caledonia.) 



Mr. Clarke considers that the Assam plant (Bedd. F. B. I. t. 

 252) should be referred to gracilescens, it is of a different texture, less 

 cut down, and with much fewer veins. 



10. Lastrea calcarata. (Bl.) Caudex erect, stout, stipes 

 tufted, fronds lanceolate pinnate, sometimes with auricles below, up 

 to about 2 feet long, pinnae spreading 1-4 inches long by | inch to 

 nearly i inch broad, cut down two-thirds or more towards the rachis 

 into oblique falcate linear oblong segments, the upper basal one 

 sometimes considerably longer than the others, rachis villous, under 

 surface more or less villous, upper surface villous, or glabrous 

 except the secondary rachis, veinlets 3-8 on a side, simple, sori 

 medial, involucre glabrous or villous. Asp. calcaratum, Bl. En. 

 Fil. Jav. p. 159. Lastrea calcarata, Hook. Sp. Fil. iv. 93, and 

 falciloba, p. 108. 



Var. ciliata, type (Wall. Cat. 351), texture herbaceous, lowest 

 pinnules deflexed, no auricles on the stem ; stipes rounded, pinnas 

 about 4 inches long, caudate at the apex, nearly 1 inch broad ; 

 indusium hairy or glabrous. Lastrea falciloba, Bedd. F. S. I. 105. 

 Asp. ciliatum, Wall. Cat. 351, and Asp. canum, Wall. Cat. 387. 

 Nephr. ciliatum, Clarke, F. N. f. 515, except syn. I, Bergiana 

 I Bedd), which is L. cana (Baker). 



