BOKAGE FAMILY 319 



features characterize fairly well the fully mature nutlet of each species; even color of the nutlet 

 has a secondary value. Markedly variable is pubescence, both as to kind and distribution of 

 trichomes, and yet the prevailing type of pubescence gives characters of some slight import. It is 

 pleasant to record that the number of nerves in the corolla-tube, as worked out by W. N. Suksdorf , 

 is useful in the group segregation of species. 



Calyit -lobes 2, 3 or 4, unequal in width ; corolla-tube 20-nerved below insertion of stamens. 

 Nutlets smooth and polished. 



Leaves coarsely and densely pustulate above, sparsely so below, bristly-ciliate; scar of 

 nutlets very obscure, narrowly lineate, nearly basal ; South Coast Eanges and 

 their east-bordering plain ; Mohave Desert ; Kern and Inyo Cos...l. A. vernicosa. 

 Leaves finely and densely pustulate and hirsute above and below; scar of nutlets con- 

 spicuous, ovate-lanceolate, nearly median ; Mt. Diablo Eange and its bordering 



valley floors 2. A. grandiflora. 



Nutlets roughened and dull ; scar ovate, mediaiu 



Corolla 3 to 5 lines broad; calyx bristly and densely rusty -hairy; South Coast Eanges 



3. A. douglasiana. 

 Corolla 1 to 2 lines broad ; calyx very bristly and thinly gray -hirsute ; South Coast Eanges, 



San Joaquin Valley and transmontane Cal 4. A. tessellata. 



Calyx-lobes 5, distinct or only slightly united; corolla-tube 10-nerved below insertion of stamens. 



Leaves entire or obscurely denticulate; calyx-lobes distinct to base; nutlets 1 to 1% lines 



long; interior plants, rarely coastal. 



Spikes remaining dense below the dense apex, the lower fruiting calyces soon deciduous; 



corolla salverf orm, the throat closed, the stamens inserted below middle of tube ; 



lower San Joaquin Valley 5. A. glomerata. 



Spikes soon loose or with discrete flowers below the dense apex; fruiting calyces mostly 

 persistent; corolla usually funnelforra, the throat open and the stamens in- 

 serted above middle of tube; widely distributed, mainly cismontane. 

 Corolla 4 to 9 lines long, the tube exceeding the calyx and the limb expanded; herb- 

 age yellowish-green, the hairs of the inflorescence usually rusty 



6. A. intermedia. 

 Corolla 2 to 3 lines long, the tube not exceeding the calyx, the limb barely expanded ; 



herbage pale grayish, rarely with rusty hairs 7. A. helleri. 



Leaves commonly erose-sinuate ; calyx-lobes partly united or sometimes distinct; nutlets % 

 to % line long; coast line 8. A. speciabiUs. 



1. A. vernicosa H. & A. Stem stout, branching above, 7 to 18 inches high ; 

 herbage glaucous, the stems glabrous or subglabrous, the leaves bristly-ciliate, gla- 

 brous above and below, rarely with a few scattered bristles above or below; leaf- 

 blades ovate-lanceolate to oblong- or linear-lanceolate, 1 to 2% inches long, sessile, 

 or the lowest tapering to a broad petiole, the abundant pustulate disks frequently 

 producing a tessellate effect; spikes 1 to 5 inches long; calyx-segments strongly 

 hirsute, often partly or wholly confluent so as to appear 2, 3 or 4, in fruit 5 to 9 

 lines long; corolla golden-yellow, 5 to 6 lines long, the limb (l^/^ or) 2 to S^/^ lines 

 broad; nutlets plane on the back (without median keel) and plane on the lateral 

 faces or nearly so, perfectly smooth and polished, gray, 2 to 3 lines long, the lateral 

 angles carinate with sharp edges, the scar very narrow or hair-like. 



Washes, hillslopes and mesas, in open country, 200 to 4500 feet : inner South 

 Coast Range from Alameda Co. to San Luis Obispo Co. and Kern Co. (rarely west 

 to the Santa Lucia Mts. in Monterey Co.) ; west border of the San Joaquin Valley 

 plain; San Rafael Mts., Santa Barbara Co. ; central Mohave Desert ; Sierra Nevada 

 in Kern Co. ; Inyo Co. Mar. -May. 



Locs. — South Coast Eanges: Corral Hollow, Alameda Co., Eoover 1751; Puerto Caiion, w. 

 Stanislaus Co., Hoover 4341; Gypsum HiUs near Ortigalita Creek, w. Merced Co., Hoover 2879; 

 Little Panoche Creek, w. Fresno Co., Hoover 408 ; lower Paloma Caiion, near Arroyo Seco, Santa 

 Lucia Mts., Hoover 2972; Polonio Pass, San Luis Obispo Co., KecTc 4" Clausen 3107. West border 

 of the San Joaquin Valley plain: Arroyo Hondo Wash, w. Fresno Co., Jepson 16,951; Sunset, 

 w. Kern Co., Heller 7722. San Eafael Mts.: Loma Paloma, Hall 7804. Mohave Desert: Calico 

 Mine, Calico Mts., Lemmon. Sierra Nevada in Kern Co.: Long Tom Mines, Greenhorn Mts., 

 C. N. Smith 245. Inyo Co.: Shepherd Canon, Argus Mts., Hall <f- Chandler 7068. 



Var. furcata Hoover comb. n. Herbage glaucous, subglabrous or thin-hispid, the leaves 

 bristly-ciliate; corolla brilliant orange, 7 to 9 lines long, the limb 4 to 7 lines broad. — Inner South 

 Coast Eange foothills and valleys (mainly on the east side) and the immediately bordering San 

 Joaquin plain, from western Fresno Co. (Little Panoclic Creek, Hoover 421; Silver Creek e. end 



