Fellcea.'] 
.FILICES, 
477 
distinctly dimorphous, the barren ones less cut, with broader divisions 
and shorter stipes than the fertile ones. Stipe wiry, glossy, dark 
chestnut-brown, 4-9 in. long, clothed with small spreading deciduous 
linear scales. Frond deltoid, 1^-3 in. long and broad, thinly clothed 
with brown pubescence above, densely clothed with brown pubescence 
beneath, the lower pinnae much the largest, unequal-sided, with the 
basal fork on the lower side much larger than the rest. Barren fronds 
with a broad wing to the rachis all through, and oblong or round lobes 
-i- in. broad. Fertile fronds with rachis winged at the top only and 
lanceolate segments. Veins fine, immersed, obscure. Sori continuous 
from the base to the tip of the segments. Involucre broad, distinct, 
persistent. Cheilanthes heterophylla, Willd. ; Bojer , Sort. Maur. 
405. Pteris pilosa, Lam. ; Kuhn , Fil. Afr. 87. 
Mauritius, on rocks of the hills of Corps de Garde and Trois Mamelles. Also 
Bourbon. 
2. P. geranisefolia, Fee ; Sook. and Baker , Syn. Fil. 146. Boot- 
stock suberect ; scales minute, brown, lanceolate. Stipes tufted, 3-9 
in. long, slender, wiry, glossy, nearly black, with a few spreading deci- 
duous scales. Frond deltoid, membranous, glabrous, 3-4 in. long and 
broad, with the main rachis winged all through. Central pinnae lanceo- 
late, deeply pinnatifid, with ascending lanceolate lobes x V~ 7 r in. broad ; 
lowest pinnae very unequal-sided, with deeply pinnatifid pinnules from 
the lower side. Veins fine, free, immersed. Involucre narrow, mem- 
branous, irregular, sometimes all broken up into small rounded lobes, as 
in Cheilanthes. Pellaea concolor, Baker. Pteris Pohliana, Fresl ; 
Kuhn , Fil. Afr. 88. P. pedata, Bojer , Sort. Maur. 399, not Linn. 
Mauritius, on high rocks of the Pouce range, etc. Spread through the warmer 
regions of both hemispheres. 
3. P. Barklyse, Baker ; Sook. and Baker , Syn. Fil. 151. Bootstock 
suberect. Stipes tufted, naked, glossy, chestnut-brown, often above a 
foot long. Frond deltoid, 4-pinnatifid, rigidly subcoriaceous, green 
and glossy on both sides, often a foot long and broad. Pinnae close, 
deltoid, stalked, cut away on the lower side at the base, the lowest 
much the largest. Ultimate segments erecto-patent, lanceolate- 
trapezoid, narrowly adnate, with a cuneate base, acute, i n - broad. 
Veins fine, immersed, free, erecto-patent. Sori absent from the tip 
and base of the segments. Involucre moderately broad, firm, per- 
sistent. Wright, in Trans. Boy. Irish Acad. vol. xxv. tab. 29. Pteris 
Barklyae, Mett. ; Kuhn Fil. Afr. 77. 
Seychelles, in the woods of Praslin and Mahe. Endemic. 
4. P. Doniana, Sook. ; Sook. and Baker , Syn. Fil. 152. Bootstock 
suberect ; scales small, bright brown, linear-subulate. Stipes tufted, 
glossy, nearly black, 3-9 in. long. Frond lanceolate, simply pinnate, 
