442 BORAGINACE^. 



with yellow throat; pedicels more or less 5-angled under the flowers, 

 persistent. Calyx 5-parted to the hase, indurated and somewhat 

 accrescent in fruit. Corolla salverform, with short tube; processes or 

 crests in the throat none (?) or not ohvlous. Nutlets ovate or 

 lanceolate-ovate, smooth, rugose, tuberculate or even with barbed or 

 prickly points, often carinate on one or both sides. Scar-of the nutlet 

 basal or above the base, concave or sometimes raised and stipe-like. 

 (Greek alios, diverse, and karua, nut, the plants separated from 

 Cryptanthe on account of the different fruits. ) 



Herbage densely pubescent, the hairs long and rather soft; var. vesiiia of . . 



1. A. mollis. 

 Herbage hispid or rough-pubescent. 

 Nutlets rugose or tuberculate. 



Pedicels about 3 lines long . .2. A. Chorisiana. 



Pedicels 1 line long to almost none. 

 Hachis of the spike iistulous-enlarged . .S, A. salina. 



Rachis of the spike not fistulous. 

 Pedicels turbmate-thlckened beneath the flower ; corolla 2 to 3 lines 



broad ; nutlet rather slender, stipitate i. A. stipiiata. 



Pedicels not thickened; corolla 1 to iW lines broad; nutlet ovate. 

 Nutlet carinate ventrally and a little past the apex dorsally . . . 



5. A. Calif ormca. 

 Nutlet carinate ventrally and dorsally, the dorsal rugae dentate- 

 interrupted . .i. A. trachycarpa. 



Nutlets with barbed or hispid prickles. .1. A. Qreenei. 



1. A. mollis (Gray) var. vestita. A rather rank plant with 

 many ascending branches 12 to 18 in. long or more; herbage very 

 densely and conspicuously hairy throughout even to the very calyces; 

 spikes 3 to 6 in. long, bractless; flowers about 2 lines broad; fruit not 

 scattered; nutlets either light or dark colored, exceeding J line, 

 regularly reticulate on the back, carinate from the apex to below the 

 middle (the carina there vanishing in the meshes of the reticula- 

 tion) or not carinate, strongly ridged ventrally down to the roundish 

 scar, which is bounded toward the base by a horseshoe-shaped ridge. 

 — (Allocarya vestita Greene.) 



Petaluma, J. W. Congdon, July 25, 1880; not since collected. 



2. A. Chorisiana (Cham.) Greene. Diffuse (or at first erect) with 

 reclining branches 7 to 16 in. long, strigose throughout; radical 

 leaves linear-elongated, often 4 in. long; racemes elongated, at length 

 very loose, leafy below; fruiting pedicels about 3 lines long, seldom 

 or never less than 1 line long; calyx little accrescent, about 1 line 

 long, the segments at length spreading; corolla 3 to 4 lines wide; 

 nutlets ovate, J line long or a trifle more, dark brown, carinate 

 ventrally only, or also dorsally toward the apex, rugose and minutely 

 granulate; scar linear. 



Low ground about San Francisco Bay: Vallejo, Greene; Belmont. 

 Apr.-June. 



3. A. salina. Branched from the base, strictly erect and simple, 

 .5 to 6 in. high; rachis of the spikes fistulous-enlarged, the flowers 

 rather dense, but strictly unilateral in 2 rather marked rows; calyx- 

 segments spatulate or ovate, very strongly callous-thickened toward 

 the base, the sinus next the axis much deeper than the others, some 



