448 BOEAGINACEiE. 



Corolla 6 lines long or more ; nutlet somewhat compressed laterally. . 



3. A. spectabiUs. 

 Corolla 5 lines long or less ; nutlets much Incurved, l^ lines long , . . 



4. A.' intermedia. 

 Corolla 6 lines long or less; nutlets J^ line long, scarcely more 



5. A. lycopsoides. 

 Nutlets smooth and polished . .6. A. grandijiora. 



1. A. tesselata Gray. Coarsely hispid, 1 to 2 ft. high; leaves 

 linear to oblong-lanceolate; developed spikes 5 to 6 in. long, loose; 

 calyx of 3 or 4 sepals, 1 harrow and 2 broad, or 3 narrow and 1 broad, 

 rusty-hispid, accrescent in fruit with the broadly-ovate foliaceous seg- 

 ments about twice the length of the nutlets; corolla small, orangc- 

 vellow; nutlets broadly ovate, abruptly acute, not carinate but flattish 

 on the back, which is surrounded by a dentate border and filled in 

 Avith a few short transverse rugEe and many wart-like projections 

 fitted closely together, and so resembling a somewhat uneven cobble- 

 stone pavement. — (A. collina Greene.) 



Near Mt. Diablo, Brnm-; San Joaquin plains. 



2. A. echinata Gray. Erect, IJ to 2J ft. high, very hispid with 

 white spreading bristles; sepals very narrow, yellow-hispid; eorollti 

 light yellow, about twice as long, little dilated at the throat, the 

 limb 2 or 3 lines broad; nutlets rauricate with slender points or almost 

 prickly, not rugose. 



Plant of the Mohave Kegion, credited to Antioch. 



3. A. spectabilis P. & M. Erect, branching above, 1 to 2J ft. 

 high, with -mostly linear or linear-lanceolate leaves; spikes 3 to 7 in. 

 long; calyx-lobes narrowly linear-lanceolate, reddish-hispid, | to J 

 the length of the corolla-tube; corolla orange-yellow, 6 to 7 lines long 

 with slightl}' unequal lobes; nutlets somewhat flattened laterally, 

 carinate dorsally and ventrally, reticulate-rugulose and granulate. 



Towards the interior. 



4. A. intermedia P. & M. Erect, frequently widely branched, 

 IJ to 3 ft. high; stems and branches with scattered white bristles, the 

 foliage densely hispid-bristly with rather shorter bristles; inflorescence 

 hispid and with a short curly pubescence; leaves oblong-lanceolate 

 to linear, thickish, entire; racemes more or less crowded at the top of 

 the stem or branches and leafy-bracteate; developed racemes 5 to 10 

 in. long, peduncled; calyx-segments rusty-hispid, linear-acuminate, 

 i as long as the narrow orange-yellow corollas, in fruit twice as long 

 at least as the nutlets; nutlets incurved, carinate dorsally, scabrous- 

 rugose and granulate, exceeding 1 line in length. 



Throughout our district, mostly towards the interior; frequently 

 very abundant on grain fields of the Sacramento Valley, forming 

 rank thickets 3 to 4 ft. high and sometimes called by the country 

 people ' ' Buckthorn . ' ' 



5. A. lycopsoides Lehm. Stems erect, branching, the branches 

 at length decumbent, 1 to 2 ft. long; herbage of a. light yellowish 

 green, setose-hispid; leaves ovate-lanceolate or narrowly oblong, with 

 erose-sinuate or entire margins; racemes rather short, frequently 



