19G 38. ASPLEXIUM, §§ EUASPLENIUM. 



base cut away in a curve on the lower side ; texture herbaceous ; veins flabeilute ; 

 sort oblique, irregular, copious. — Hk, Sp. 3. p. 146. Ex. Fil. t. 208. 



Eab. Temperate Australia, Tasmania, and New Zealand. 



32. A. qnitense, Hk. ; st. slightly tufted, slender, green, 1 in. or less 1.; fr. 

 2-3 in. 1., I in. br., with 6-12 conspicuously stalked horizontal pinnee on each side, 

 which are oblong-deltoidal in general outline, but half the lower side cut awa_y, 

 the rest broadly and bluntly lobed ; texture herbaceous ; rachis green, compressed 

 and slightly winged ; veins distant, pinnate ; sori 2-4 to a pinna, principally on 

 the upper side.— ^/fc. Sj). 3. jy. 145. 2nd Cent. t. 20. 



Hab. Andes of Ecuador, Jameson, 707 ; Spruce, 5334. — Recedes from A. viride by its 

 more distant, more deeply lobed and distinctly stalked pinnae. 



S3. A. Sandersoni, Hk. ; st. tufted, 1-2 in. 1., green, slightly fibrillose ; fr. 6-9 

 in. 1., -I"! in. br., linear, often gemmiferous at the apex, with 12 to 20 horizontal 

 dimidiate pinnce on each side, which are deeply crenate on the upper edge, and 

 at the base narrowed suddenly into a winged petiole, the lower one nearly 

 straight and quite entire; texture herbaceous; rachis green, flaccid; only the 

 lowest side vein forked ; sori 1-3, oblong. — Hk. Sp. 2. p. 147. t. 179. 



Hab. Natal, Zambesi Land, and Johanna Islanic— Nearest A . quitense, but the pinnae 

 quite dimidiate and the teeth of the upper side closer and vertical. 



34. A. dentatum, Linn. ; s#. tufted, 2-G in. 1., slender, naked, polished, ebeneous 

 below ; fertile fr. 2-3 in. 1., 1 in. br., with 6 to 8 pairs of stalked subopposite 

 pinnce, which are \ in. br., f in. deep, oblong-rhomboidal, the lower side at the 

 base truncate in a curve, the outer edge irregularly crenate ; sterile fr. smaller, on 

 shorter stalks ; texture herbaceous ; rachis slender, naked, green ; veins sub- 

 flabellate ; sori copious, in two parallel rows. — Hk. Sp. 3. p. 130. 



Hab. Florida, Bermuda, West Indies, Mexico, and Guatemala.— Pinnse mnch further 

 apart than in the rest of the group, the lower pair sometimes 1 in. from the others. 



B. Group of A. Trichomanes. Rachis wirt/, chesnut-brown or blackish. 

 Sp. 35-44. 



35. A. pi/gmceum, Hk. ; st. tufted, \ in. 1., slender, densely clothed with long 

 horizontal fibrillose scales ; fr. \-\\ in. 1., :^-f in. br., linear,, with a pinnatifid 

 point and 3 to 4 sessile pinnce on each side, which are \ in. each way, oblong, 

 rhomboidal, between cuneato-flabellate and dimidiate, the apex deeply crenated ; 

 texture herbaceous ; rachis scaly like the stem ; sori unknown. — Hk. Sp. 3. 

 p. 147. t. 180. B. 



Hab. Madagascar, Dr. Lyall. Lady Barkly has shown clearly that this is only 

 undeveloped affine. 



36. A. Hciifflcri, Reichardt ; st. densely tufted, 2-3 in. 1., wiry, slender, 

 polished, dark chesnut-brown ; fr. \\-2 in. 1., ^-| in. br., with 3 or 4 pairs of 

 opposite distant pinnae, the lowest of which is ^ in. each way, rhomboidal- 

 cuneate, inciso-dentate, and sometimes deeply lobed, uniformly narrowed on 

 both sides below to a distinct petiole ; texture herbaceous ; rachis naked, dark- 

 coloured and polished like the stem ; veins flabellate ; sori irregular, linear- 

 ohXong.— Verh. Zool. Bot. Ges. Wicn. 1859. jt?. 95. t. 4. 



Hab. Tyrol, Ileuffler.— Some of the German botanists have regarded this as a hybrid 

 of Trichomanei and germanicum, between which it is quite intermediate. 



37. A. Trichomanes, L. ; st. densely tufted, 1-4 in. 1., naked, glossy, chesnut- 

 brown, polished ; /r. 6-12 in. 1., Ij in. or rather more br., with 15-30 opposite 

 pairs of sessile horizontal /wi?i«?, which are ^-g in. br., 1^-2 lin. deep, the edge 



