Osmorrhiza. UMBELLIFERyE. 261 



nearly 1| lines long, broadly ovate; ribs and broad oil-tuT)es conspicuous: seed 

 nearly terete or somewhat hollowed on the face. 



Across the continent from New England and Florida to Washington Ten-itory and the Sierra 

 Nevada ; Mono Pass {Bolander), and reported from Fort Tcjon, Xantiis. It is doubtful wlicthcr 

 it extends to the coast, most of the specimens reported from that region liclonging apparently to 

 C. Californica. The species is also native of Europe and Asia. 



2. C. Bolanderi, Watson. Leaves bii)innate, the leaflets narrowly lanceolate, 

 sharply long-acuminate, two inches in length, very acutely scjrrate, the veiulets 

 passing to the sinuses ; the lower leaflets petiolulate and often deeply lobed : in- 

 volucre of several linear leaflets : fruit two lines long, nearly orbicular, strongly 

 ribbed and with broad oil-tubes, Avhich are sunk in tlie channelled seed. — Proc. 

 Am. Acad. xi. 139. 



At Suisun, in salt marshes, Bolander. 



3. C. Californica, Gray. Very stout, 3 to 5 feet high : leaves pinnate, or the 



lower bipinnate at base ; the leaflets 2 to 4 inches long, lanceolate, shortly acumi- 

 nate, rounded at base, serrate with the veinlets running to the teeth, often deeply 

 lobed on the lower side : involucre none, or a narrow leaflet ; involucels of several 

 lanceolate bracts : fruit broadly ovate, 1^ lines long, strongly ribbed : seed not 

 channelled under the oil-tubes, rhomboidal or ovate in section, thinnest at the 

 commissure. — Proc. Am. Acad. vii. 344. 



In the neighborhood of San Francisco and southward to Santa Cruz {Uarlweg) and Monterey, 

 Brewer. 



13. SIUM, Linn. "Water Parsnip. 

 Calyx-teeth minute. Stylopodium depressed and styles short. Fruit oblong or 

 ovate, laterally compressed with a narrow commissure, the ribs prominent and wing- 

 like, corky ; oil-tubes 2 or 3 in the intervals. • Carpophore 2-parted, slender and 

 usually deciduous with the fruit. — Smooth perennial aquatics, with angled stems ; 

 leaves pinnate and leaflets serrate or pinuatifid ; involucre and involucels of several 

 bracts ; flowers white. 



Half a dozen species are found in the nortlieni temperate zone and a single one in South 

 Africa. The following species, also Asiatic, is the only one indigenous in California. 



1. S. cicutaefolium, Gmelin. Stout, 3 to G feet high, branching: lower leaves 



long-petioled, the cauline with a short dilated base ; leaflets 6 to 8 pairs, oblong- 

 lanceolate to linear, 2 to 4 inches long, acuminate, sharply serrate or rarely pinuat- 

 ifid, the upper ones shorter and narrower: rays 1 to H inches long; involucre 

 and involucels of 6 to 8 linear bracts : fruit oblong, IJ lines long, very strongly 

 ribbed. — S. lineare, Michx. 



Reported from Pose Creek, and mentioned by Torrey in Bot. Wilkes Exped. and by pjolandcr 

 as growing near San Francisco. It is certainly found on the eastern slope of the Sierra Nevada 

 in Sierra and Truckee Valleys, and thence ranges to Washington Territory, Colorado, the Sas- 

 katchewan, and the Atlantic. It is also identical with the plant of Siberia, the older name of 

 which is here adopted. Bentham & Hooker refer both tliis si)ecies and the eastern .S'. Carsoni to 

 the genus Apium, but they are certainly not to be separated from the typical species -S". lali- 

 Jolium and lancifolinm of the Old World. In all, the carpophore though delicate is always 

 "2-parted, and the oil-tubes are 2 or 3 (perhaps rarely solitary) in the intervals. 



14. OSMORRHIZA, Rafinesciiie. Sweet Cicely. 

 Calyx-teeth obsolete. Fruit linear-oblong, narrowly attenuate at base, acute 

 above and tipped by the erect style, compressed laterally and narrowed at the com- 

 missure ; carpels 5-angled, with somewhat prominent slightly corky wings, hispid 

 with short ascending bristles ; oil-tubes numerous and very obscure. Seed terete, 



