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i72 INTRODUCTIOl? TO BOTANY.
Depressed, depressa. Flattened downwards. Neurada
prostrata.
Tongueshape, Unguiformis. Compressed and drawn out
like a tongue. Fraxinus.
Winged, alata. Extended out into a wing.
One-winged, monoptera, u?iialaia. Fraxinus.
Winged at top, epipterata. Fraxinus, Casuarina.
Winged all round, peripterata. Ulmus, Paliurus.
Three winged, triptera. Rheum, Polygonum emarginatum.
Four winged, teiraptera. Combretum laxum.
Five winged, pentaptera. Combretum secundum.
^ Adhering, adhcerens. United to the calyx. Trapa
natans, Halesia tetraptera.
Free, inadhm-ens. Not united to the calyx. Rumex,
Rheum Polygonum, Ternstromia.
Induviated, induviata. Covered by a persistent calyx.
Salsola Fragus.
^ One-celled, unilocularis. Scirpus, Polygonum, Salsola.
Two-celled, lilocularis. Circaea ovalifolia, Ternstromia
punctata.
Many-celled, multilocularis. Punica Granatum.
^ One-seeded, monosperma. Rumex, Salsola.
Two-seeded, disperma. Circsea ovalifolia.
Three-seeded, trisperma, &c.
Many-seeded, polysperma. Ternstromia punctata.
Cystidium.
Utriculus. Fruit one-seeded^ not adhering to the calyx,
pericarp scarcely visible, umbilical cord distinct. Amaran-
thaceae. Pi. 13, fig. 9 and 10.
Sacellus.
Fruit consisting of a seed covered ivith a membranaceous
envelope. Soda. PI. 13, fig. 12 and 13.
Thecidion.
Thecidium. Pericarp dry, hard, crustaceous. Polygonum.
PI. 13, fig. 6.
ACHENA.
Pericarp leatherlike, not woody, not adhering to the seed.
Cyperaceae. PL 13, fig. 15 and 16.