38. ASPLENIUM, DAREA. 221 



Darea, Juss. (Ccenopteris, ^ory). Veins simple, ultimate divisions of the 

 frond narrowly linear ; sori linear or linear-oblong, marginal or submarginal. 

 Sp. 156-177. See also Sp. 62, 144. Fig. 38. b. c. 



* Fronds 6-9 in. /., lanceolate or subdeltoid. Sp. 156-164. 



156. A. (Darea) Mannii., Hk. ; st. tufted, 1 in. or more 1., slender, naked ; fr. 

 1-2 in. ]., 1 in. br., lanceolate-deltoid, the upper branches simple, the lower ones 

 once or twice forked dichotomously ; primary or secondary branches J-| in. ]., 

 not more than J lin. br. ; texture thinly herbaceous, a single vein in each branch ; 

 sori oblong, solitary, marginal. Hk. 2nd Cent. t. 60. 



Hab. Cameroon Mountains and Fernando Po ; discovered by Gustave Mann, and 

 gathered also lately in Zambesi Land by Dr. Kirk. 



157. A. (Darea) brachypteron, Kunze ; st. tufted, 2-4 in. 1., wiry, naked ; fr. 

 4-6 in. L, 1-1^ in. br., with 12-24 horizontal pinnae on each side, of which from 

 half to nearly the whole of the lower side is cut away, the largest -|-|- in. 1., cut 

 down to the rachis into simple or forked linear pinnl. 1-1 ^ lin. 1. ; texture 

 herbaceous ; rachis slender, naked ; sori solitary, often quite marginal. Hk. Fil. 

 Ex. t. 14. 



Hab. Madagascar, Natal, Angola, and Guinea Coast. 



158. A. (Darea) Dregcanum, Kunze ; st. 2-4 in. 1., grey, naked ; fr. 6-9 in. 1., 

 2-3 in. br., flaccid and rooting at the point, with numerous flaccid pinnce on each 

 side, some of which have half the lower side cut away ; the largest 1-lj in. 1., 

 cut down into simple or slightly-forked linear pinnl. ^-f in. 1. ; texture 

 herbaceous ; rachis naked ; sori solitary, submarginal. Hk. tip. 3. p. 214. 



Hab. Natal. Very doubtfully distinct from A. Irachypteron, with which it is joined by 

 Mettenius. 



159. A. (Darea) obtusilobum, Hk. ; st. tufted, 2-4 in. L, naked, greenish ; fr. 

 6 in. 1., 2 in. br., with 9-12 subdeltoid pinnos on each side, of which only the 

 inner third on the lower side is cut away, the largest 1 in. 1., f in. br. ; lowest 

 pinnl. f in. deep, flabellately cut into 3-5 linear lobes; texture herbaceous; 

 rachis green, naked ; veins one in each fork ; sori submarginal. Hk. Ic. t. 1000. 



Hab. Tanna and Aneiteum ; and a less-divided plant gathered by Dr. Seeinann in Fiji 

 is probably the same. Closely allied to the two preceding. 



160. A. (Darea) dichotomum, Hk. ; st. tufted, 1 in. 1., firm, erect, greenish ; 

 fr. 3-4 in. L, 1-1 \ in. br., oblong, acute, tripinnate, with 8-12 pinnce on eacli 

 side, which are truncate on the lower side, cut down to a narrow compressed 

 rachis, only the lower pinnl. again pinnatifid ; ult. segm. 1^-2 lin. 1., -| in. br. ; 

 texture herbaceous ; main rachis compressed, greenish, naked ; one vein to each 

 segm. ; sori solitary, linear, quite marginal. Hk. Sp. 3. p. 210. 2nd Cent. t. 39. 



Hab. Borneo. 



161. A. (Darea) Upinnatifidum, Brack.; st. tufted, 2-4* in. 1., naked, wiry, 

 slender ; fr. 6-8 in. 1., 1-1 1 in. br., with 12-20 close-placed erecto-patent pinnce 

 on each side, the largest -|-f in. 1., f in. br., cut down to the rachis into linear 

 slightly-flattened pinnl., in. deep, the lowest again pinnatifid; texture sub- 

 coriaceous ; rachis firm, erect, naked ; veins one in each segm. ; sori small, 

 solitary, marginal. D. furcata, Brack, p. 170. 



Hab. Fiji ; gathered by Brackenridge, Seemann, and Milne. 



