nent and acute (sometimes slightly winged); lateral wings rather 
hroad and thickish, distinct from those of the other carpel; a group 
of strengthening cells beneath each rib. Oil-tubes 1 to 4 in the 
intervals, 2 to 6 on the commissural side. Seed face plane or 
. < 
slightly concave. 
II. Fruit not flattened either way, or but slightly. 
* Fruit with all the ribs conspicuously winged, stylopodiura depress- 
ed or wanting, and oil-tubes numerous (except in Thaspium and some 
species of Cymopterus) . 
18. Cymopterus. Calyx-teeth more or less prominent. 
Fruit usually globose, somewhat flattened laterally if at all. Car- 
pel somewhat flattened dorsally, with mostly 5 broad thin equal 
wings (dorsal or intermediate wings sometimes wanting); lateral 
wing's distinct from those of the other carpel; pericarp with no 
strengthening cells (indistinctly developed in one species). Stylo- 
podium depressed. Oil-tubes one to several in the intervals, 2 to 8 
on the commissural side. Seed-face from slightly concave to 
deeply sulcate. n 
19. PhellopteruS. Calyx-teeth small. Fruit globose, gla- 
brous. Carpel somewhat flattened dorsally, with 5 equal broad 
and corky-thickened wings ; lateral wings distinct from those of 
the other carpel ; pericarp with no strengthening cells. Stylopo- 
dium depressed. Oil-tubes 2 to 3 in the intervals (but appearing 
evenly distributed owing to the narrowness of the intervals), 4 to 
6 on the commissural side. Seed-face slighly concave. A low 
tcmentose- villous sea-shore herb. 
20. Thaspium. Calyx-teeth conspicuous. F ruit ovoid to 
oblong, slightly flattened dorsally if at all, mostly glabrous. Car- 
pel with 3 or 4 or all the ribs strongly winged. Stylopodium 
wanting; styles long. Oil-tubes solitary in the intervals, 2 on the 
commissural side. Seed sulcate beneath "the oil-tubes, almost terete 
or somewhat dorsally flattened, with plane face. 
* * Fruit with all the ribs prominent and equal (intervals broad), acute 
or sometimes slightly winged, conical stylopodium, and numerous oil- 
tubes. 
21. LigUSticum. Calyx- teeth obsolete. Fruit oblong or 
ovate, flattened laterally if at all, glabrous. Carpel with group of 
strengthening cells beneath each rib. Oil-tubes 2 to 6 (mostly 
