discovered or described since 1874 . 
305 
subrigid, green, glabrous, \ ft. long, i-i| in. broad at the 
middle, narrowed gradually to the base. Pinnae sessile, un- 
equal-sided, laciniate-pinnatifid. Veins indistinct, erecto- 
patent. Sori finally forming a continuous mass, covering the 
whole pinna, except the tip and outer edge. China ; Chefoo, 
Hancock , 14. 
106*. A. formosanum, Baker; A. Hancockii , Baker, in Journ. Bot. 
1885, 104, non Maxim. Formosa, Hancock , 134. Allied to 
A. laciniatum and the small forms of A. affine . 
107*. A. subaquatile, Cesati, Fil. Born. Beccar. 20, tab. 3 , fig. 5. 
Borneo, first gathered by Beccari, later by Curtis and Bishop 
Hose. 
114*. A. Lydgatei, Hilleb. FI. Hawaii, 596. Sandwich Islands. 
“ Allied to A. diffiorme , R. Br.” Not seen. 
119. A. pekinense, Hance. Further material shows that 132, 
A. Saulii, Hook., in Blakistone’s Yangtsze, 303 (1862), is a 
larger, more compound form of the same species, and the 
latter is the older name. It has lately been found by Levinge 
in the Himalayas (Chumba and Jhelum Valley). 
124*. A. sphenotomum, Hilleb. FI. Hawaii, 529. Sandwich Islands. 
Not seen. 
125. A. furcatum, Thunb. An earlier name for this cosmopolitan 
species is A. praemorsum , Swartz, Prodr. FI. Ind. Occ. 130 
(1788). 
126. A. affine, Swartz. In Madagascar this proves to be excessively 
variable in cutting. I now refer here A. simillimum, Kuhn, 
in Hildeb. Madag. Exsic. No. 3773 ; A. Gilpinae, Baker, in 
Journ. Linn. Soc. XVI, 200 ; A. herpetopteris, Baker, in 
Journ. Linn. Soc. XVI, 20 ; and A. viviparoides, Kuhn, in 
Hildeb. PI. Madag. Exsic. No. 4148. See also vars. Pecten 
and tanalense , Baker. 
133. A. fontanum, Bernh. I place as a variety very near exiguum, 
A. yunnanense, Franchet, in Bull. Bot. Soc. France, XXXII, 
28, gathered in Yunnan by Father Delavay. 
133*. A. chihuahuense, Baker, n. sp. Stipes densely tufted, casta- 
neous, green upwards, J-i in. long. Frond oblong-deltoid, 
bipinnate, moderately firm, glabrous, an inch long. Lower 
pinnae the largest, sessile, ovate, lobed down to the base on 
the upper side (lobe obovate-cuneate), cuneate-truncate on the 
