476 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Stylopodium wanting; 
calyx teeth minute 
or obsolete; dorsal 
ribs filiform....... 19. 
Stylopodium _ present; 
calyx teeth evi- 
dent; dorsal ribs 
sharp or winged. . .25. 
Plants caulescent, branching. 
Flowers white; dorsal 
ribs prominent... .13, 
Flowers yellow; dorsal 
ribs filiform.......23, 
Oil tubes more than one in the inter- 
vals between the ribs. (See 
also Aulospermum.) 
Plants caulescent, branching, 
Leaves ternately or pinnately 
compound............ 13. 
Leaves several times com- 
Plants acaulescent or nearly so, 
Lateral wings of the fruit 
Lateral wings of the fruit 
thickened. 
Dorsal ribs very promi- 
nent or slightly 
Fruit not strongly flattened dorsally, 
usually more or less laterally com- 
pressed. 
Oil tubes more than one in the inter- 
vals between the ribs. 
Stylopodium conical. 
Fruit spherical, with globose 
carpels and very slen- 
der inconspicuousribs. 9. 
Fruit ovoid or oblong, with 
prominent equal ribs. .10. 
Stylopodium flat or wanting. 
Seed face suleate or concave. .15, 
Seed face plane or but slight- 
ly concave. 
Leaves pinnate, with 
short crowded seg- 
ments; flowers pur- 
Leaves ternate-pinnate, 
with distant seg- 
ments; flowers yel- 
COGSWELLIA (p. 484). 
CYNOMARATHRUM (p. 485). 
ANGELICA (p. 481), 
PastINAca (p. 485). 
ANGELICA (p. 481). 
. CONIOSELINUM (p, 480). 
. COGSWELLIA (p. 484), 
. PsruDocymoprerts (p. 482). 
. CYMOPTERUS (p. 482). 
BERULA (p. 479). 
Ligusticum (p. 480). 
AULOSPERMUM (p. 481), 
. PHELLoprERus (p. 481). 
. Preryxta (p. 485), 
