186 COMPOSITAE 
4. Holocarpha heermannii (Greene) Keck. Heermann’s Tarweed. Fig. 5300. 
Hemizonia heermannii nee Bull. Torrey Club 9: 15. 1882 
Cenanare heerucamnss Greene, Fl. Fran. 425. 1897. 
annit Jepson, Man. FI. Pl. Calif. 1090. 1925. 
Holocarpha sical Sock Aliso 4: 58. 
Stem 2-12 dm. high, simple rah . big ad few-branched above to diffusely branchea 
throughout, pilose or hispid below, cine above, with interspersed glandular pubescence 
; herbage strongly resinous <a se Rel 6 icenle canescent, the upper oe densely 
a se like ata, 
e sed t 
long ; heads Seca or openly racemose; involucre 5-6 mm. high, puberulent ame lies - 
an 
In hard-baked pce up to 4,000 feet, Upper Sonoran Zone; foothills surrounding the San Joaquin Valley 
from Contra Costa County to the Mount Hireiiios Soe and from Calaveras County to Tchechegt Pass pe 
Ventura socio local in eee, and San Luis Obispo Counties, California. Type locality: Tehachapi Pass, 
Kern County, near Keene Sta May-Oct. 
33. CALYCADENIA DC. Prod. 5: 695. 1836. 
Xerophytic annuals with linear to filiform, entire, revolute, grass-like leaves, those 
at the base of the rigid stem crowded into an erect rosette, more scattered above and often 
fasciculate, those of the fascicles and the uppermost usually bearing a prominent, tack- 
cup, and adenos, gland, in reference to the cup-shaped glands of the inflorescence. 
A genus of 11 species, nearly confined to California. Type species, C ees truncata D 
ma) pene or saucer- Beye —_ none; lobes or ray-flowers linear; ray-achenes distinctly beaked; southern 
oi ornia (Section Osma 
ace — ing pate 16. alternating long and sh 1. C. tene 
Tack-shaped o shaped glands present on bracts; ne ee of ray-flowers oblanceolate or ironder; ray-achenes 
* not distinctly. beatond but areola som males erated: southern Ore egon to central California 
R (Section Eucalycadenia). 
Stems slibrows throughout or sages toward summit; pappus of about ie ae Bow fimbriate 
paleae 0.5-1.8 mm. long o Oe ee 
Stems . pubescent, never scabrid; pappus of 5 long-attenuate paleae 4-5 —_ me ce alter- 
with 1-3 short blun 3. €. mollis. 
Ray- ica: Caney: stems pubescent, a east above; ig ei scabrou 
Bracts subtending the heads nerved quite to apex, i.e., more or ae egies Eepadiapet, the rounded or 
runcate apex not impressed, ae ctaty' a ee rang or longer than the involuc 
iret glands confined to the one terminating most of the alkodeler f bracts a ray-achenes vil- 
Ea glands more numerous and on the heads (see C. fremontit) ; vas kbeies glabrous to 
moderately hairy. 
Stem om or openly branched; heads medium large, crowded and often glomerate; ray-flowers 
2-8. 
Ligules with very broad lateral lobes; late-flowering. 
bes of ligule equal; bracts much shorter than the involucre, domed. ti finely his- 
pidulous; pappus much shorter than the disk- — 5. Cia 
Lobes - ligule unequal, the central one only half as wide as the i bracts equal- 
jon Sod exceeding involucre, couraany hispid: e haleo equaling or exceeding disk- 
ene. 
Pappus-paleae 2.7-3.5 mm. long, alternating long and short; peduncular bracts 
nearly menan. Bp ing od seceding. bate erect, Jaa “i Bi than involucre; 
lamarahe or less anthocya rae shin pag 
Pappus-paleae re lon ‘al oer saduiste tar oh cts recurved from heads, 
us oy Mt joagee 3 rae (except in manne oe Ph “herheas 
nthocyanous, more finely and densely pubescent 
. C. hispida. 
Ligules equally 3-parted to base with linear-oblanceolate variate lobes; clr apes 
Leaves all opposite, the uppermost three times as long as the joriece: Deode | ver- 
ticillate glomerules. oppositifoli 
Leaves a above, the uppermost but slightly sudan eh involueres heads 
racemose. . C. fremon 
Stem densely and ‘sgreel "erage branched above; heads small, never s ROE ray- 
ers usually 1, . C. pauctflora. 
Bracts subtending the heads not nerv er to apex, the outer third terete, the ng treebests and impressed, 
strongly imbricated, regularly equaling the involucre. 11. C. spicata. 
1. Calycadenia tenélla aes Torr. & Gray. Osmadenia. Fig. 5301. 
Osmadenia tenella Nutt. Trans. Amer. Phil. Soc. II. 7: 392. 1841. 
Calycadenia tenella Torr. & Gray, FI. é: soshncy 2: 402. 1843. 
Hemizonia tenella A. Gray, Proc. Amer. Acad. 9: 191. 1874. 
Stem 1.5—5 dm. high, eect branched, often intricately twiggy, the ultimate branchlets 
