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NAMES AND TERMS. 
orbicular , — perfectly circular. 
ovate, — egg-shaped ; obovate, — inversely egg-shaped. 
panicle , — a cluster of flowers. 
paniculate , — having panicles. 
peltate, — fixed to the stalk by the centre, or by some point 
distinctly within the margin. 
persistent, — lasting, not deciduous. 
petiole, — the stalk of a leaf. 
pinnia (plural pinnce), — the leaflet or primary division of a 
pinnated leaf. 
pinnate, — when simple leaflets (or pinnae) are arranged on 
each side of a common leaf-stalk ; bipinnate, when the 
pinnae are again divided ; tripinnate, a third division. 
pinnatifid, — divided not quite to the stalk. 
pinnule, — a small pinna — the secondary division of the leaf. 
plicate, — folded lengthwise, like a lady’s fan. 
plumule, — the bud of a seed. 
rachis (plural rackides), — the midrib or vein of a leaf or frond. 
radicle, — the first root of a plant. 
receptacle, — the part in which the organs of reproduction are 
placed. 
refiexed, — curved very much backwards. 
reniform , — kidney-shaped. 
reticulated, — like net -work. 
rhizome, — the creeping root-stalk. 
rupestral, — growing in rocky places. 
serrated, — with teeth like a saw. 
sessile, — set on without any perceptible stalk. 
soriferous, — bearing sori. 
sorus (plural sori), — a cluster of spore-cases. 
spicate, — in the form of a spike. 
spinulose, — having spines or thorns. 
spores, — the seeds of ferns. 
stipes, — the proper stalk of the fern, 
sub, — in composition means nearly, as sub-ovate, nearly egg- 
shaped ; sub-pinnate, not altogether pinnate. 
