Lindsaya.~\ 
FILICES. 
473 
patent. Sori placed on both sides of the tip of the pinnae and round 
the outer border of the segments. Involucre narrow, firm, greenish. 
Mauritius, in the woods of Grand Bassin, Bojer ! Also Bourbon. Probably a 
variety of L. heterophylla , Dry., of Tropical Asia. 
4. L. Kirkii, Hook.; Hook, and Baker , Syn. Fil. 108. Rootstock 
woody, creeping, clothed with minute lanceolate dark brown scales. 
Stipe a foot or more long, terete, naked, greenish. Frond bipinnate, 
1-2 feet long, f- 1 foot broad, bright green, naked, membranous. Pinnae 
crowded, numerous, erecto-patent, 6-9 in. long, 1-1\ in. broad, with a 
terete wingless rachis. Segments sessile, close, oblong-trapezoid, trun- 
cate in a straight line on the lower and inner border. Veins close, 
distinct, radiating from the lower border, casually anastomosing. 
Sorus a narrow line round the upper and outer edge of the segments. 
Wright , in Trans. Roy. Irish Acad. vol. xxv. t. 28. L. Pervillei, Mett. ; 
Kuhn , Fil . Afr. 17 and 68. 
Seychelles, one of the commonest ferns of the forests. Endemic. 
10. ADIANTUM, Linn- 
Capsules stalked, splitting transversely, with an incomplete vertical 
ring. Sori marginal, varying in shape from globose-reniform to linear. 
Involucre the same shape as the sorus, formed of the reflexed edge of 
the frond indurated in texture, bearing the capsules on its under side. 
— Small ferns, very various in cutting, with dark brown glossy rachis, 
usually naked, with free veining. Distkib. All tropical and sub- 
tropical regions, mainly of America. Species 60-70. 
Fronds simple, orbicular 1. A. reniforme. 
Fronds compound, with segments cut away in a 
straight line on the inner and lower borders. 
Simply pinnate, rooting at the tip 2. A. caudatum. 
Pedate, with pinnate divisions 3. A. hispidulum. 
Fronds compound ; segments stalked, cuneate at the 
base 
Segments y-J in. broad 4. A. ^ethiopicum. 
Segments in. broad 5. A. Capillus- veneris. 
1. A. reniforme, Linn.; var. A. asaeieolitjm, Willd. ; Hook, and 
Baker , Syn. Fil. 114. Rootstock erect ; scales lanceolate, dark-brown. 
Stipes densely tufted, wiry, nearly black, scaly at the base, 2-12 in. 
long. Frond orbicular or broader than long, entire, 2-4 in. broad, with 
a deep sinus and rounded lobes that open or overlap and embrace 
the top of the stipe, rigidly coriaceous, glabrous. Veins fine, distinct, 
Blose, radiating from the top of the stipe. Sori placed all round the 
entire border of the frond except in the sinus, orbicular or oblong, 
yL -- \ in. long, crowded. 
Mauritius, on rocks of the Pouce range, etc. Also Bourbon and Natal, and the 
type in Madeira and the Canaries. 
