10 POLYGONACEAE 



and similar to the leaves, those subtending the inflorescence f oliaceous but shorter and awn-tipped ; 

 cymes dense ; involucres 4.5-5 mm. long, cinereous-pubescent, 5 of the teeth slightly divergent and 

 uncinate, short, the anterior straight or obscurely uncinate, often about twice as long ; calyx little 

 exserted, outer calyx-lobes suborbicular, entire, the inner smaller and fimbriate. 



Dry hillsides and over-grazed ranges, Upper Sonoran Zone; California South Coast Ranges, San Benito 

 County to Santa Barbara County. Type locality: San Luis Obispo, California. June- Aug. 



Two segregates of doubtful specific or subspecific value have been proposed recently: Chorizanthe obovata 

 Goodman (Ann. Mo. Bot. Gard. 21: 70. 1934), with outer calyx-lobes obovate and entire, and Chorizanthe biloba 

 Goodman (Ann. Mo. Bot. Gard. 21: 73. 1934), with outer calyx-lobes obovate and more or less 2-lobed. 



14. Chorizanthe fimbriata Nutt. 

 Fringed Chorizanthe or Spine-flower. Fig. 1318. 



Chorizanthe fimbriata Nutt. Journ. Acad. Phila. II. 1: 168. 1848. 



Stems erect, solitary or few from the base, 7-30 cm. high, dichotomously branched above or 

 often trichotomous at the first node, reddish, thinly pubescent. Leaves basal, 2.5-4 cm. long, 

 long-petioled, the blades obovate-spatulate, rounded to emarginate at apex, villous-tomentose 

 beneath; bracts all acicular or those of the first node rarely foliaceous; inflorescence a broad 

 open cyme; involucres in small clusters, 5-6 mm. high, cylindric, 4-5 mm. long, mostly thinly 

 pubescent, teeth widely spreading, the 3 inner much smaller, all uncinate; calyx 5-7 mm. long, 

 the lobes about as long as the tube, their margins fimbriate except for the linear entire terminal 

 lobe ; stamens 9. 



Dry gravelly or sandy mesas and hillsides, Upper and Lower Sonoran Zones; cismontane southern California 

 from Los Angeles County to San Diego County and south to adjacent Lower California. Type locality: San Diego. 

 May-July. 



Chorizanthe fimbriata var. laciniata (Torr.) Jepson, Fl. Calif. 394. 1914. (.Chorizanthe laciniata Torr.) 

 Like the typical species in habit, but plants more pubescent, and involucres often densely tomentose; calyx-lobes 

 laciniate, finely fimbriate throughout, the terminal lobes scarcely broader. San Jacinto Mountains to the Laguna 

 Mountains, mainly on the desert slopes, southern California, also adjacent Lower California. 



15. Chorizanthe uniaristata Torr. & Gray. 

 One-awned Chorizanthe or Spine-flower. Fig. 1319. 



Chorizanthe uniaristata Torr. & Gray, Proc. Amer. Acad. 8: 195. 1870. 

 Chorizanthe rectispina Goodman, Ann. Mo. Gard. 21: 72. 1934. 



Stems usually several from the base, decumbent, 10-25 cm. long, cinereous-tomentose. Leaves 

 basal, 2-4 cm. long, oblanceolate, long-petioled, villous-tomentose ; bracts foliaceous, awn-tipped, 

 the floral ones acicular ; involucres in small head-like cymes racemosely or paniculately arranged 

 along the main branches, the tube cylindric-urceolate, 2-3 mm. long, 5 of the teeth short, widely 

 spreading, recurved and uncinate, the anterior one divergent or erect, straight, equaling or much 

 longer than the tube; calyx sparsely pubescent, outer lobes linear-oblong or linear-oblanceolate, 

 obscurely erose at apex, the inner about half the size, linear; stamens 3. 



Dry soils, Upper and Lower Sonoran Zones; South Coast Ranges, San Benito, Fresno, and Monterey Coun- 

 ties; also on the plains of upper San Joaquin Valley and Sierra Nevada foothills, Kern County, California. Type 

 locality: New Idria, San Benito County, California. June-Aug. 



16. Chorizanthe Clevelandii Parry. 

 Cleveland's Chorizanthe or Spine-flower. Fig. 1320. 



Chorizanthe Clevelandii Parry, Proc. Davenp. Acad. 8: 195. 1870. 



Stems usually several from the base, decumbent, 8-20 cm. long, loosely tomentose. Leaves 

 basal, 1-3 cm. long, oblanceolate, obtuse, cinereous-pubescent; lower bracts foliaceous, awn- 

 tipped, those of the inflorescence acicular; involucres in scattered head-like cymes, the tubes 

 hoary-pubescent, urceolate, 3-3.5 mm. long; teeth all uncinate, the anterior one longer than the 

 others and frequently as long as the tube ; calyx appressed-pubescent, outer lobes ovate, minutely 

 erose, the inner shorter and conspicuously erose ; stamens 3. 



Dry rocky or sandy soils, Upper Sonoran Zone; California Coast Ranges, from southern Mendocino and 

 Lake Counties to Ventura County; also southern Sierra Nevada in Tulare and Kern Counties, California. Type 

 locality: Allen's Springs, Lake County, California. June— Aug. 



17. Chorizanthe pungens Benth. 

 Monterey Chorizanthe or Spine-flower. Fig. 1321. 



Chorizanthe pungens Benth. Trans. Linn. Soc. 17: 419. pi. 19. f. 2. 1836. 

 Chorizanthe Douglasii var. albens Parry, Proc. Davenp. Acad. 5: 175. 1889. 



Stems prostrate or ascending, branching from the base, 8-35 cm. long, canescent with a 

 spreading villous pubescence. Leaves basal, oblanceolate, 3-5 cm. long, long-petioled; bracts 

 opposite, the lower similar to the basal leaves, uppermost acicular ; involucres clustered in scat- 

 tered head-like cymes, the tube cylindric-campanulate, 2-3 mm. long, villous-hirsute, 6-toothed, 

 the alternate teeth larger, divergent, straight except the uncinate tip, winged below with a broad, 

 pale membranous margin separated in the sinuses; calyx 3-3.5 mm. long, partly exserted, lobes 

 about half as long as the tube, erose, the outer 3 obovate or oblong, rounded to truncate occasion- 

 ally mucronulate at apex, the inner similar but a little narrower and shorter ; stamens 9. 



Sandy soils, near the coast, mainly Humid Transition Zone; northern Monterey County, California. Type 

 locality: Monterey, California. April-June. 



Chorizanthe pungens var. Hartw6gii (Benth.) Goodman, Ann. Mo. Bot. Gard. 21: 37. 1934. (Chori- 

 zanthe Douglasii var. tiartiuegii Benth.) Densely and more or less hoary-villous-pubescent ; involucres and caly 

 often reddish. Sandy bluffs and hills, in the Santa Cruz Mountains about Ben Lomond and Felton, Caliform: 



x 



la. 



