224 38. ASPLENIUM, ATHYRIUM. 



very narrow simple or forked linear pinnl. ; texture herbaceous ; rachis firm, 

 erect ; sori linear, solitary, marginal. Hk. Sp. 3. p. 213. 2nd Cent. t. 37. 



Hab. Norfolk Island. Easily recognized by its dimorphous fronds. 



173. A. (Darea) scandens, J. Sm. ; st. scattered on a stout creeping rhizome, 

 very short ; fr. 1-2 ft. 1., 6-12 in. br., with numerous horizontal pinnce on each 

 side, which are 4-6 in. 1., l^in. br., cut down to a distinctly winged rachis into 

 numerous subdistant ovate-rhomboidal pinnl., which are cut down to the rachis 

 throughout ; lower segm. again pinnatifid ; ult. divisions narrowly linear ; 

 texture thinly herbaceous ; rachis firm, erect ; one vein in each division ; sori 

 solitary, marginal. Hk. Sp. 3. p. 216. 2nd Cent. t. 37. 



Hab. New Guinea and the Philippines ; and a similar plant, with simply pinnate 

 pinn and a stem about 1 in. 1., from Fiji and Celebes. 



174. A. (Darea) multifidum, Brack. ; st. stout, erect, grey, naked, slightly 

 paleaceous, 12-18 in. 1. ; fr. 2-3 ft. 1., 12-18 in. br., subdeltoid, quadripinnatifid, 

 with numerous pinnce on each side, the lowest 6-9 in. 1., 4 in. br. ; pinnl. lanceolate- 

 deltoid, truncate at the base on the lower side ; segm. 4-f in. 1., in. br., the 

 lowest cut down nearly to the rachis below into close oblong-spathulate 

 bluntly-toothed divisions, J in. br. ; texture subcoriaceous ; rachis grey, firm, 

 rather scaly ; veins and sori one to each division, the latter very small, quite 

 marginal. Hk. Sp. 3. p. 212. 



Hab. Tahiti, Society Isles, and Fiji. 



175. A. (Darea) Powellii, Baker ; st. naked, greyish, firm, erect ; fr. 2-3 ft. 

 1., 12-18 in. br., subdeltoid, 5 -pinnatifid, with numerous imbricated erecto-patent 

 pinnce on each side, the lowest 9-12 in 1., 3-4 in. br. ; pinnl. deltoid, 3 in. 1., 

 l in. br. ; lower segm. deltoid, their lower divisions again pinnatifid ; ult. 

 divisions linear, 1^-2 lin. 1., lin. br., all the divisions erecto-patent ; texture 

 herbaceous ; colour bright-green ; rachis firm, compressed upwards ; veins and 

 sori solitary, the latter small (under 1 lin. 1.), linear-oblong, submarginal. 



Hab. Samoa, Rev. T. Powell. This comes nearest to the preceding, but is considerably 

 more divided. Luerssen unites them both with bulbiferum. 



176. A. (Darea) ferulaceum, Moore ; st. 6-12 in. 1., firm, erect, naked, greyish ; 

 fr. 1-2 ft. 1., 9-12 in. br., ovate-deltoid, with several pinnce decreasing gradually 

 upwards, the lowest horizontal or deflexed, 6-9 in. 1., 3-5 in br. ; pinnl. lan- 

 ceolate-deltoid ; segm. f-1 in. 1., their divisions again pinnatifid ; ult. lobes 

 linear, blunt, 1 lin. 1., J lin. br. ; texture thinly herbaceous ; colour bright-green ; 

 main rachis firm, naked ; veins solitary ; sori lateral, very small. Hk. Sp. 3. 

 p. 216. 2nd Cent. t. 38. 



Hab. Andes of Ecuador and New Granada. 



- Q i Athyrium, Both. Veins free, sori more or less curved, sometimes horse- 

 shoe-shaped. Sp. 177-199. Fig. 38. e. 



* Fronds deltoid. Sp. 177-180. 



177. A. (Athyr.) crenatum, Ruprecht ; st. 6-12 in. 1., scattered, firm, erect, 

 naked, straw-coloured, clothed towards the base with large ovate dark-brown 

 scales ; fr. 9-15 in. each way, deltoid, tri- or quadripinnatifid, with 9-12 pinnce 

 on each side, the lowest much the largest, 6-9 in. 1., 1^-2 in. br. ; pinnl. lan- 

 ceolate, cut down to the rachis except towards the point on each side into 4-6 

 blunt oblong segm. 2 lin. 1., 1 lin. br., which are bluntly toothed ; texture 

 herbaceous ; rachis straw-coloured ; both surfaces hairy or nearly naked ; sori 



