21 



nciit ;iiul :iculc ( soincl iiius sli^^htls wiii^^Ltl) ; l;il(.-i;il wiiit^s ratlit-r 

 broad and thickisli, distiutl fiDiii those of tlic other carpel; a f^roup 

 of strengtheniiiu: cells heiieath each ril). Oil-tubes 1 to 4 in the 

 intervals, 2 to () on t!ie coiiiniissural side. Seed face plane or 

 slightly concave. 



II. Fruit not (lattcned eithei way, or \mi sliKl'tly. 



* Fruit with all the ribs conspicuously wingod, styiopodiura dopress- 

 <h1 or wanting, and oil-tubes ininierous (except in TlmHjtium and some 

 species of Cj/mnptmiK). 



18. Cymopterus. Calyx-teeth more O" less prominent. 

 Fruit usually globose, somewhat llattcned laterally if at all. Car- 

 pel somewhat flattened dorsall}, with mostly 5 broad thin equal 

 vvings^(dorsal or intermediate wings sometimes wanting); lateral 

 wings distinct from those of the other carpel ; pericarp with no 

 strengthening ce^Us (indistinctly deyeloped in one species). Stylo- 

 podium depressed. Oil-tubes one to several in the intervals, 2 to 8 

 on the commissural side. .Seed-face from slightl\- concave to 

 deeply sulcate. 



1*.). PhellopteruS. Calyx-teeth small. I-'ruit globose, gla- 

 brous. Carpel somewhat flattened dorsally, with T) equal broad 

 and corky-thickened wings; lateral wings distinct from those of 

 the other carpel; pericarp with no strengtliening cells. Stylopo- 

 dium depressed. Oil-tubes 2 to li in the intervals (but appearing 

 evenly distributed owing to the narrowness of the intervals), 4 to 

 () on the commissural side. Seed-face slighly concave. A low 

 tojnentose-villous sea-shore herb. 



20. Thaspium. Calyx-teeth conspicuous. Fruit ovoid to 

 oblong, slightly flattened dorsally if at all, mostly glabrous. C;ir- 

 pel with 8 or 4 or all the ribs strongly winged. Stylopodium 

 wanting; styles long. Oil-lubes 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 eciual (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 15 ( mostly 



