140 PROCEEDINGS OF THE AMERICAN ACADEMY 



of one or two linear bracts or none : fruit crowded, oblong, obtuse at 

 each end ; ribs and commissure very corky : seed somewhat dorsally 

 compressed, usually angled ; vittai at the angles. — Found in marshes 

 at Point Lobos and Merced Lake, and southward to San Diego 

 County. — (E. sannentosa, Xutt., of Washington Territory, differs 

 esjiecially in its more diffuse leaves, the leaflets acuminate and 

 smaller. 



LiGUSTicuM FiLiciNUM. Rather slender, erect, a foot and a half 

 high : leaves broadly triangular in outline, ternate, the divisions bipin- 

 nate, and the segments deeply pinnatifid with linear acute lobes : rays 

 10 to 15, an inch or two long; involucre none ; involucels of one or 

 few small linear bracts ; pedicels slender : fruit oblong, three lines 

 long, with dilated crenate disk but obscure stylophore, strongly ribbed 

 on the back, the lateral ribs narrow; vittte obscure: seed flattened, 

 concave on the face, obscurely ridged on the back. — L. apiij'olium, 

 Watson, Bot. King's Rep. 125. X. scopidorum, Parry in Am. Natu- 

 ralist, 9. 271. In the Wahsatch and Uintah Mountains (u. 454 Wat- 

 son ; n. 82 Parry, S. Utah collection), and northward to Wyoming 

 (n. 121 Parry, N. W. Wyoming collection). Both L. apiifolium, of 

 Oregon and California, and L. scopidorum, of Colorado, have much 

 less dissected foliage, and different fruit, which is shorter and more oval, 

 with conical stylophore, less flattened carpels, and a medial longitudinal 

 ridge upon the face of the seed. These two species are very similar, 

 but the latter has the more broadly winged ovate fruit, and the more 

 depressed seed. There are indications of one or two other species, but 

 fruit is needed for their confirmation. 



Selinum Pacificum. Leaves ternate and bi[)innate, the ovate 

 acutish segments an inch long, laciniately toothed and lobed : umbels 

 on stout peduncles, about 15-rayed, with a conspicuous involucre of 

 two or three lobed and toothed leaflets, an inch long and eipialling the 

 rays ; involucels of several narrowly linear entire or ^-toothed bracts, 

 equalling the flowers; pedicels slender: fruit smooth, oblong, three or 

 four lines long; wings thin, rather narrow ; stylopodium slightly prom- 

 inent above the disk : vittas conspicuous, very rarely in pairs, the dorsal 

 ones sunk in the body of the seed. — On the Saucelito hills, near San 

 Francisco ; Kellogg & Harford, n. 315. This closely resembles a 

 })lant of Unalaschka, one of the two northwestern and arctic species 

 which have been referred to the Siberian ConioseUnum Fischeri, but 

 which are rightly separated from it by Benth. & Hook, in Gen. PL 

 1. 915. The Alaskan species differs in having narrower and acute 

 leaflets, the fruit shorter and more ovate (only two lines long), with 



