626 
FILICES. (FERNS.) 
§ 2. Doodia, R. Brown. — Indusium flatlisli: fertile frond with usu¬ 
ally hut one row of cross vein/ets, bearing the fruit near the midrib. 
2- W. Virgailica, Willd. Fertile and sterile fronds similar 
(2P high), pinnate ; the pinnae lanceolate, pinnatifid, with numerous 
oblong lobes; fruit-dots contiguous or confluent with age, making a 
row on each side of the midrib, both of the pinnae and the lobes. — 
Swamps, not rare. July. 
8. CAilIPTOSORUS, Link. Walking Leaf. 
Fruit-dots linear or oblong, irregularly scattered on the reticu¬ 
lated veins of the simple frond, which form mostly hexagonal 
meshes, variously diverging, inclined to approximate in pairs by 
their free margins, especially those of the secondary reticulations, 
or to become confluent at their ends, forming crooked lines 
(whence the name, from Kayurros, bent , and o-aypos, for fruit-dot). 
1. C. rliizoptiyllus, Link. (Asplenium rhizoph., L.) — 
Shaded, moist rocks, rare. July. — Fronds evergreen, growing in 
tufts, spreading or procumbent (4'-9' long), lanceolate from an auri- 
cled-heart-shaped base, entire or wavy on the margin, tapering above 
into a slender prolongation like a runner, which often roots at the 
apex and gives rise to new fronds, and these in turn to others; hence 
the popular name. (If Antigramma be not a distinct genus, it must be 
reduced to Camptosorus, which is the oldest name.) 
9. SCOLOPENDRIUJI, L. HartVTongue. 
Fruit-dots linear, elongated, borne in pairs on the contiguous 
sides of the 2 parallel forks of the straight free veins, one on each, 
but so confluent side by side as to appear like one opening by an 
apparently double indusium down the middle. (The ancient 
Greek name, so called because the numerous parallel lines of fruit 
resemble the feet of the centipede, or scolopendra.) 
1. S. officinarnm, Smith. Frond simple (rarely 2-forked at 
the apex), oblong-lanceolate from an auricled-heart-shaped base, entire 
or wavy-margined (7'-18' long, l'-2' wide), bright green — Limestone 
rocks, in a deep ravine at Chittenango Creek, below the Falls, where 
it abounds, and also, it would seem, in some other places in W. New 
York (“near Canandaigua,” JYuttall ). 
10 • ASPLE YIUHI, L. Spleenwort. 
Fruit-dots linear or oblong, oblique, separate, not in pairs, all 
attached lengthwise to the upper side of the simple, forked or pin- 
