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complex-reticulate +
major +
absent +
narrowed +
Limestone adder's-tongue +
unbranched +
subterranean +
mycorrhizal +
fleshy +
absent +
uniseriate +
scattered +
long +
Present +
absent +
of widely scattered , long , uniseriate hairs +
clasping +
fused +
dilated +
successive +
surrounding +
fertile +
sporangial +
Leaves appearing early–late spring, often with second flush later in season following summer rains. +
photosynthetic +
sterile +
Ber. Deutsch. Bot. Ges. +
1883 +
unbranched +
straight +
lacking +
0;25 +
proliferous +
sunken +
numerous +
Illustrated +
branched +
thick-walled +
embedded +
exposed +
1.3-2.5 times as long as trophophore +
arising +
sporangial +
common +
divided +
4 cm40 mm <br />0.04 m <br /> (?) +
upright +
baculate +
network +
delicate +
joined +
Ophioglossum engelmannii +
Ophioglossum +
species +
simple +
apiculate +
vascular +
pale green +
herbaceous +
10 cm100 mm <br />0.1 m <br /> (?) +
absent +
0.01 times length of blade +
anastomosing +
free +
terrestrial +