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EXPLANATION OF TERMS. 
Frondes cent. 
cells and tbeir bases the same material. 
Geniculated, 
knee-jointed. 
Gibbous , 
protuberant. 
Imbricated , 
tiled one over the other. 
Lacinules , 
jags or shreds. 
Laciniated, 
jagged. 
Lynceous , 
woody. 
Mollusc as, 
soft-bodied animals, as worms, oysters, &c. 
Oscules, 
lips, here applied to the holes in sponges. 
Ovaria , 
the supposed embryos of future polypi- 
Paniculated, 
doms. 
an assemblage growing on stalks, irre- 
Pedicels , t 
Pedicules, 3 
Pedunculus , 
gularly united to one stalk, like oats, 
or many grasses. 
little foot* stalks. 
a foot-stalk. 
Pelagian , 
sea deeps. 
Pinnated , 
winged, or growing like the feather part 
Pinnates , and } 
Pinnies, 3 
of a quill. 
the pinnated expansions. 
Proliferous, 
shooting out fresh branches from the 
Pyriform, 
summits of former ones, 
like a pyramid. 
Rhomb, 
a figure of four sides. 
Rhomboidal , 
nearly of the figure of a rhomb. 
Sessile, 
close to the stem without a foot-stalk. 
Setaceous , 
bristly. 
Simple , 
unbranched. 
Spatulated, 
spoon-shaped. 
Stipitated , 
standing on a pillar. 
Stipula, 
a prop. 
Stoloniferous , 
having suckers. 
