284 Umbelliferae 



often 3-lobed ; umbel 12-16-rayed ; rays 5-9 cm. long; pedicels 

 short, 3-10 mm. long; fruit oblong, smooth, 8 mm. long; oil- 

 tubes 3-5 in the intervals, 4-6 on the commissural side. ( Velaea 

 arguta C. & R.) 



Frequent in dry open ground in the chaparral belt. 



10. DBUDEOPHYTUM C. & R. 



Caulescent or acaulescent plants with usually ter- 

 nately compound leaves and yellow flowers. Calyx-teeth 

 evident or wanting. Fruit orbicular, flattened laterally, 

 glabrous or pubescent. Carpel with 5 slender filiform 

 ribs. Stylopodium none. Carpophore variable, oil- 

 tubes several in the intervals and on the commissual 

 side. Seeds nearly terete, the inner face with a narrow 

 and deep sulcus, which enlarges into a central cavity. 



1. D. Parishii C. & R. Glabrous throughout, nearly acaules- 

 cent, 3-4 dm. high; leaves thickish, ternate-pinnatifid, the seg- 

 ments ovate, irregularly cuspidate-toothed and lobed; umbel 

 20-rayed, with no involucre; bractlets few, setaceous; rays 5-7.5 

 cm. long; pedicels about 4-7 mm. long; calyx-teeth prominent; 

 fruit oblong, glabrous, 6-7 mm. long; carpophore 2-parted; oil- 

 tubes 3-4 in the intervals, 4-5 on the commissural side. ( Valaea, 

 Parishii C. & R.) 



Occasional in the Santa Monica and San Gabriel Mountains. 



11. APIUM L. 



Annual or perennial glabrous herbs with pinnate or 

 pinnately compound leaves and white or greenish yellow 

 flowers in compound umbels. Calylx-teeth obsolete. 

 Stylopodium depressed or short-conic. Fruit ovate or 

 broader than long, smooth or tuberculate. Carpels 

 mostly with prominent ribs, somewhat 5-angled. Oil- 

 tubes mostly solitary in the intervals, 2 on the commis- 

 sural side. Seed terete or nearly so. 



1. A. graveolens L. Glabrous; stems erect, 3-9 dm. high, 

 several-leafed; leaves pinnate, the basal and lower ones long- 



