172 INTRODUCTION TO BOTANY. 
Depressed, depressa. Flattened downwards. Neurada 
prostrata. : 
Tongueshape, linguiformis. Compressed and drawn out 
like a tongue. Fraxinus. 
Winged, alata. Extended out into a wing. 
One-winged, monoptera, unialata. Fraxinus. 
Winged at top, epipierata. Fraxinus, Casuarina. 
Winged all round, peripterata. Ulmus, Paliurus. 
Three winged, tripfera. Rheum, Polygonum emargi- 
natum. 
Four winged, ¢etraptera. Combretum laxum. 
Five winged, pentaptera. Combretum secundum. 
{| Adhering, adherens. United to the calyx. Trapa 
natans, Halesia tetraptera. 
Free, inadherens. Not united to the calyx. Rumex, 
Rheum Polygonum, Ternstromia. 
Induviated, imduviata. Covered by a persistent calyx. 
Salsola Fragus. 
{| One-celled, wnilocularis. Scirpus, Polygonum, Salsola. 
Two-celled, lilocularis. Circzea ovalifolia, Ternstromia 
punctata. 
Many-celled, multilocularis. Punica Granatum. 
{| One-seeded, monosperma. Rumex, Salsola. 
Two-seeded, disperma. Circeea ovalifolia. 
Three-seeded, trisperma, &c. 
Many-seeded, polysperma. Ternstromia punctata. 
CystTip1UM. 
Utriculus. Fruit one-seeded, not adhering to the calyx, 
pericarp scarcely visible, umbilical cord distinct. Amaran- 
thaceee. PI. 13, fig. 9 and 10. 
SACELLUS. 
Fruit consisting of a seed covered with a membranaceous 
envelope. Soda. PI. 13, fig. 12 and 13. 
'THECIDION. 
Thecidium. Pericarp dry, hard, crustaceous. Polygo- 
num. Pl. 13, fig. 6. 
ACHENA. 
Pericarp leatherlike, not woody, not adhering to the seed. 
Cyperacez. PI. 13, fig. 15 and 16. 
