THE FERNS OF NORTH-WESTERN INDIA. 533 



b3 called serrate, much less " spinoso-seiTated " (Syn. Fil.), or " spiuosoly- 

 seiTafced or crenate-sm-ate " (Budd.). Clarke says—'' Margin cr^^nate-seiTate, 

 scarcely spinulose." I should say certainly not spinnlose. The pinna of 

 neither plant are aui-iculate, as those of most Polystichunis are. The distinguish- 

 ing features of A. Duthiei are — the short and stiff stipes and stout rhachis ; the 

 dense covering of disproportionately large, very pale, scales ; and the white 

 set(B on the upper surface, and the coriaceous textui'e. Judging from the 

 few plants which have been gathered, some with few fronds left on them, but 

 with numerous stumps of tliick stipes, this species produces larger fionds than 



CORRECTION. 



Vol. XIT, jiage 533, fourUi line from tlio top, /or Polys^ichurns, read 

 Polysticliums. 



^„„.„, ..... ...w.-xx J — yuu uuvTriias SBC. rn. mio numerous segments, one for each 



main vein with margins rounded upwards from the sinus, the lov^'er afterwards 

 running parallel with the sec. rli. to an ogival mucronate point, margin some- 

 times undulate and slightly toothed ; tcsture coriaceous, brittle when di'ied ; ven. 

 pinnate in the segments, lowest pair of veinlets taking off at or near costa of 

 pinna and curving upwards to near the sinus, but sometimes stopping much short 

 of it and then often not soriferous, others rumiing into the lobes, and all stopping 

 short of the margin and having thickened ends ; sori small, 2 —3 to a segment, 

 on lowest pair of veinlets and next veinlet above, appearing grouped in triplets — 

 two sori belonging to one segment and the third to the next superior segment ,• 

 invol. shrivelling on top of ripe sori, but often persistent. (Plate VII — drawn 

 from a Darjeeling specimen.) 



Punjab: S'm/r/j i?e.(7.— " Above Simla, Col. Batep," fide Hooker in Herb. Hort. 

 Kew. " Lastrea atrata ?? Wall." N.-W. P. : " Garhical "—P. W. Mackinnon 1881 ; 

 Kumaun—^. and W. 1848, No. 3. 



DiSTRiB.— ^s«« : N. Ind. (Him,) Sikkim— Darjeeling 6-7000', Gamble 1879, Nos. 

 6968 and 7075, Lev. 1899, 7000' ; Bhotan— Dhumsong 6000', Gamble 1876, No. 254 ; 

 Assam— Shillong, Clarke 4-1635, 1886. 

 13 



