PARSLEY FAMILY 651 



many-rayed umbels. Involucre of few narrow bracts, sometimes foliaceous. In- 

 volucel of many linear-lanceolate bractlets. Fruit elliptic-oblong, not flattened 

 dorsally. Ribs very thick and corky, becoming hollow, equal or the lateral ones a 

 little broader. Oil-tubes small, 1 in the intervals, 1 or 2 under each rib, 2 to 4 on 

 the commissure. — Species about 4, North America and Asia. (Greek koilos, hol- 

 low, and pleuron, rib, referring to the cavity made by the intruded ribs. ) 



1. C. maritimum C. & R. Stems corymbosely branched, 2 to 3 feet high ; leaflets 

 roundish to ovate, crenate, 1 14 to 4 inches long; rays 1 to 1% inches long; fruits 

 2^ to 3 lines long, the lateral ribs twice as broad as the others. 



Along the coast, 5 to 100 feet : central Humboldt Co. North to Washington. 

 July. 



Locs. — Loleta, John Mathiesen; Hookton, Humboldt Bay, Tracy 4581. 



Eefs. — CoELOPLEURUM MAEiTiMUM C. & R. Bot. Gaz. 13:145 (1888), type loc. Long Beach, 

 Ilwaco, Wash., Henderson 384; Hall, Univ. Cal. Publ. Bot. 6:167 (1915). C. lucidum Jepson, 

 Man. 728 (1925), not Fer. (1919). 



31. SPHENOSCIADIUM Gray 



Perennials with thick roots. Stems stout, tall, nearly simple, glabrous. Leaves 

 once or twice pinnate with bladdery dilated petioles. Flowers white (or some- 

 times purplish), sessile on enlarged receptacles and forming compact heads, the 

 heads borne on tomentose rays in a medium-sized umbel. Involucre none. In- 

 volucels of many linear-setaceous bractlets. Calyx-teeth none. Fruit cuneate- 

 obovate, flattened, subglabrous. Ribs prominent, winged above, the dorsal and 

 intermediate ones narrow, the lateral broader. Oil-tubes solitary in the intervals, 

 2 on the commissure. Seed face plane. — Species 1, Pacific North America. (Greek 

 sphenos, a wedge and sciadios, an umbrella, referring to the umbel.) 



1. S. capitellatum Gray. Rangers Button. Stems very stout, 3 to 5 feet 

 high ; herbage zinc-grey ; leaves large, glabrous, % to 2 feet long ; leaflets or seg- 

 ments linear-lanceolate to oblong or ovate, serrate or coarsely and saliently few- 

 toothed or incised above, more or less entire below; rays 4 to 8 (or 14), subequal, 1 

 to 2 (or 4) inches long ; flowers pubescent ; involucels of a few deciduous bractlets ; 

 fruit cuneate-obovate, 3 lines long. 



Swampy ground, about springs or in moist loamy soil along streams or on flats, 

 3000 to 8500 feet : mountains of Southern California ; Tehachapi Mts. ; Sierra 

 Nevada ; White Mts. ; high North Coast Ranges. North to Oregon and Idaho, east 

 to Nevada, south to Lower California. July- Aug., fr. Sept. 



Locs. — San Jacinto Mts. (C. & R. Rev. N. Am. Umbell. 43); Bluff Lake, San Bernardino 

 Mts., Parish; Bitter Creek, Mt. Ptnos; Bisses sta., Tehachapi Mts., Dudley; Mt. Silliman; Bench 

 MdvF., Kaiser Ridge, Jepson 13,275 ; Line Creek, Huntington Lake, Jepson 13,096 ; Red Mdw., 

 near Devils Postpile, Madera Co., A. L. Grant 1563a; Hetch-Hetchy, Jepson 3484; Soda Springs 

 Canon, Kennedy Lake, Tuolumne Co., A. L. Grant 504; Poison Creek, White Mts., Jepson 7373; 

 Hermit Valley, Alpine Co., Hansen 324; Donner Lake, Sonne; Yuka Pass, Sierra Co., Jepson 

 16,859 ; SusanvUle, Fearl Safford; Mill Creek, Warner Mts., L. S. Smith 998 ; Shasta Sprs., Jepson 

 13,482; Shackelford Creek, w. Siskiyou Co., Butler 460; Asa Bean Flat, ne. Mendocino Co., 

 Cronemiller. 



Three varieties are recognized in the Manual of the Flowering Plants of California: var. 

 scabrum Jepson (leaves typically scaberulous), var. validum Jepson (leaf -segments ovate) and 

 var. eryngiifolium Jepson (leaves glabrous or tending to be). These represent merely extremes 

 of variation. The third, var. eryngiifolium, is fully connected by a series of intergrades with the 

 species. The type of Selinum eryngiifolium Greene represents a dwarfed and probably much 

 starved state, most likely growing on granite. The original, collected July 12, 1889 by Drew 

 (really by Chesnut and Drew), is from the granite dome, Cloud's Rest, above Yosemite. The ovate- 

 acute spinulose-tipped leaf -segments are only 1 to 1^/^ lines long, the segments and pinnae notice- 

 ably divaricate. Every intergrade between this state and a more usual or normal form with nar- 

 rowly linear or lanceolate segments 1^4 to 10 lines long is represented in the higher Sierra Nevada 

 and on its eastern slope. As var. eryngiifolium we cite: Crescent Lake, Mariposa Co., Congdon; 



