194 INTRODUCTION TO BOTANY. 
valvules united by their contiguous edges; nevertheless 
custom compels botanists to look upon them as a single 
valve. 
Elastic, elasiice. Dentaria, Cardamine impatiens. Ri- 
cinus. PI. 16, fig’ 8. 
Partition-bearing, septifere. Ruellia ovata. 
Seed-bearing, seminifere, placentifere. Gentianeze. 
Flat, plane. Lunaria, Alyssum clypeatum. 
Concave, concave.. Alyssum utriculatum. 
Boatlike, naviculares. Keeled like a boat. Ruellia ovata, 
Subularia aquatica, Isatis tinctoria. — 
Keeled, carinate. Lepidium, Isatis tinctoria. 
Cover-like, oferculares.. Like the cover of a bowl. Plan- 
tago, Anagallis, Centunculus. PI. 16, fig. 17. : 
SUTURES. 
Suture. The line of junction between two contiguous 
valves. 
Prominent, Suture prominentes. Placed upon an ele- 
vated surface. 
Winged, pteroidee. The elevations extended into wings. 
Evonymus latifolius. 
Sunk, vecesse. Placed at the bottom of a channel of 
greater or less depth. Rhododendron. 
PARTITIONS. 
Dissepimenta, Lignum intergerinum, Distinctio.— The 
doublings of the panninterne of the pericarpium which divide 
ats cavity into two or more cells. 
Longitudinal, Dissepimenta longitudinalia. Extending 
from the bottom to the top of the pericarp, parallel to the 
axis. Lilium, Ruellia ovata, Thlaspi, Cheiranthus. 
Cross, ¢ransversalia. Extending from side to side, pa- 
rallel to the plane of its base. Cassia Fistula. 
Indeterminate, vaga. Without any determinate di- 
rection. Many partitions of punica granatum. 
False, spuria. Formed only of cellular tissue. Glaucium 
luteum. 
€/-General, generalia. With edges that reach the in- 
ternal surface of the pericarpium all round, so that each of 
them divides the cavity into two parts. Plantagineze, Cru- 
ciferee, Astragalus, Cassia Fistula. 
Partial, partialia. With edges that reach the internal 
surface of the pericarp on one side only, and on the other 
