CAMPTOSORUS RHIZOPHYLLUS, Link. 
Walking-Leaf. 
Camptosorus RHIZOPHYLLUS : — Root-stock short, creeping 
or ascending ; stalks tufted, slender, flaccid, green, but becoming 
brown near the base ; fronds a few inches to a foot long, sub-cori- 
aceous, evergreen, smooth, gradually narrowed from a deeply cor- 
date and auricled base to a long and very slender prolongation, 
decumbent and often rooting at the end ; veins reticulated near 
the midrib, and having free apices along the margin ; sori elon- 
gated, variously placed on either side of the veins, often face to 
face in pairs, or extending around the upper part of the meshes ; 
indusium delicate. 
Camptosorus rhizophylkcs, Link, Hort. Berol., ii., p. 69 ; Fil. Sp. Hort. 
BeroL, p. 83. — Presl, Tent. Pterid., p. 12 1, t. 4, fig. 8. — Hooker, 
Gen. Fil., t. 57, C ; Fil. Exot., t. 85. — Gray, Manual. — Darling- 
ton, Flora Cestr., ed. iii., p. 393. — Mettenius, Fil. Hort. Lips., 
p. 67, t. 5, fig. 6. 
Asplenium rhizophyllum, Linn^us, Sp. PI., p. 1536. — Swartz, Syn. Fil., 
p. 74. — WiLDENOw, Sp. PL, V., p. 305. — Michaux, FI. Bor. Am., 
ii., p. 264. — Bigelow, FI. Boston. 
Antigramma rhizophylla, J. Smith, in Hook. Journ. Bot., iv., p. 176; 
Ferns, British and Foreign, p. 226. — Torrey, FI. New York, ii., 
p. 494, t. 159 {^Asplenium'). 
