196 38. ASPLENIUM, EUASPLEXIUM. 



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

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



Hab. Temperate Australia, Tasmania, and New Zealand. 



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

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

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

 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. Hk. Sp. 3. p. 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. 



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

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

 dimidiate pinnae 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. 3. p. 147. t- 179. 



Hab. Natal, Zambesi Land, and Johanna Island. Nearest A . quitensc, but the pinna? 

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



34. A. dentatum, Linn. ; st. tufted, 2-6 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. Pinnae 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 wiry, chesnut-brown or blackish. 

 Sp. 35-44. 



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

 horizontal fibrillose scales ; fr. 1-1^ in. 1., - 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. Heuffleri, Reichardt ; st. densely tufted, 2-3 in. 1., wiry, slender, 

 polished, dark chesnut-brown ; fr. l-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- 

 oblong. Verh. Zool. Bot. Ges. Wien. 1859.^. 95. t. 4. 



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

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



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

 brown, polished ; fr. 6-12 in. 1., | in. or rather more br., with 15-30 opposite 

 pairs of sessile horizontal pinnce, which are J-g in. br., l-2 lin. deep, the edge 



