BORAGK FAMILY. 



448 



of the outer sepals united nearly to the summit in some cases; nutlet> 

 roughish papillate, with rather sharp lateral angles, carinate dorsally. 

 Alvarado, margin of salt marshes, June, 1896. 



4. A. stipitata Greene. Branched from the base and somewhat 

 spreading, the branches mostly simple, slender, commonly 9 to 12 in. 

 long; leaves linear-oblanceolate, 1 to 3 in. long, or the radical obovate 

 or oblong, attenuate into a long petiole; corolla 2 to 3 lines broad, 

 white with yellow eye or the eye changing to white; sepals at length 

 brownish and often spreading; nutlets somewhat flattened on the back, 

 rugose and papillate, strongly carinate at apex, the dorsal carina 

 continuous to the base or obsolete below the middle; scar short- 

 stipitate; sepals at length brownish and often spreading. 



Very common on the plains of the Lower Sacramento and eastern 

 Contra Costa Co. to Hollister. Apr.-May. Very robust specimens 

 frequently show strictly virgate branches nearly or quite 2 ft. long, 

 flower-bearing throughout their entire length. The very short stipe 

 is evident only as a narrow constriction between the elevated scar and 

 the body of the nutlet. 



5. A. Californica (F. & M.) Greene. Similar in habit to A. 

 stipitata; flowers 1 to \\ lines broad; nutlet ovate, carinate ventrallv 

 and a little past the apex dorsally, usually grayish; scar not raised: 

 rugae mostly oblique and branched. 



Coast Range and interior valleys: Russian River; Solano Co. and 

 southward to Hollister. 



Var. stricta (A. stricta Greene). Slender, strictly erect, almost 

 simple, 5 to 7 in. high, somewhat succulent; spikes very dense. — 

 Calistoga. 



Var. subglochidiata Gray. Branches succulent, often prostrate; 

 calyx-lobes accrescent; nutlet with minute muriculations and sharp- 

 edged transverse rugula? commonly tipped with a tuft of penicillate 

 bristles. — (A. humistrata Greene.) 



Colusa Co. to the San Joaquin Valley. 



6. A. trachycarpa (Gray) Greene. More or less diffuse or decum- 

 bent; racemes leafy throughout- or nearly so; calyx-segments spread- 

 ing; corolla small, 1 to H lines broad; nutlet broadly ovate, trans- 

 versely rugose and papillate or muricate, carinate ventrally and 

 dorsally; dorsal rugosities commonly simple, and keel mostly dentate- 

 interrupted. 



Sonoma Co., southward to Hollister and the San Joaquin plains. 

 Papillse of the nutlet sometimes slender and rough, apparently passing- 

 into less bristly forms of A. Greenei. 



A. diffusa Greene. — Nutlets similar, rugose in the same fashion 

 but not so strongly, carinate dorsally but obscurely. 



7. A. Greenei (Gray) Greene. Diffusely branched from the base, 

 the straggling branches commonly 1 ft. long or more, strigulose- 

 pubescent; leaves linear-oblanceolate; racemes simple, leafy or brac- 

 teate below, the flowers scattered; nutlet 1 line long, ovate, rather 

 densely covered with slender barbed prickles; prickles \ to h line long, 

 quite distinct at base. 



