392 COMPOSITAE 
the stems striate. Leaves persistent, 1-2 cm. long, 2-3 mm. wide, pectinately pinnatifid into 
minute or short rounded segme ae ee ‘allow lobular 8-17 mm. in diameter, on peduncles 
3-9 cm. long; phyllaries 3-seriate, 2.5-3 long, la am eae Mosier ribbed; receptacle con- 
vex, the receptacular aah cartilaginous with ac it picuous midrib, loosely vi illous- tomentose on 
the obtuse tips; disk-fl m. long, fannetorm, the lobes lanceolate ; achenes 2.5 mn 
long or a little longer, eS anpled. Sra pappus 
A Mediterranean plant much grown in gardens and LNG escaping and becoming locally established; 
Sonoma and Monterey Counties, California. June—Aug. 
98. HYMENOPAPPUS L’Her. Diss. Hymenop. 1. 1788. 
Perennial, biennial, or sometimes annual herbs, sparingly to densely tomentose, often 
glabrate. Leaves basal and alternate, simple to bipinnately compound. Inflorescence co- 
2-doS 
or white, the tube slender, throat ‘abruptl expande es reflexe nthers minutely 
sagittate. Style-branches with obtuse flattened pune the fie papillate. “Achenes 0 pyrami- 
al, pubescent, striate and 4-angled, somewhat c ssed and contorted in the marginal 
flowers. Pappus-paleae several to many, often vedtivial, hyaline or membranous, median 
nerve obscure or lacking, never produced into an awn. [From the Greek words meaning 
membrane and pappus. } 
y ieee genus of 10 species, all natives of temperate North America. Type species, Hymenopappus scabiosaeus 
1. Hymenopappus filifélius* Hook. Columbia Cutleaf. Fig. 5673. 
Hymenopappus filifoliuns Hook. Fl. Bor. Amer. 1: 317. 1833. 
Hymenopappus columbianus Rydb. N. Amer. Fl. 34: 52. 1914. 
Perennial from a taproot, 3-10 dm. high, the thinly or densely tomentose stems erect with 
ascending branches, several a arising fr rom t e stout, branched, densely leafy, tufted caudex. Basal 
20 cm. lon t midrib in - 
ut 10-50 mm. r 
the broadened sel bases and cena conspicuous with a persistent tomentum; upper leaves very few, 
essi i ds 2 -flowe 
i 
| tip; flowers yellow, 2.5-4.5 mm. long, tube densely glandular- ak s long 
surpassing the abruptly expanded, more or na cylindric throat, ihe to fiv nee ook than the 
ecurved lobes; corolla appearing urceolate age, anthers 2-3 mm. lon nes 4.5 m 
more Hah with densely silky, aioe aha which ainost obi uke the pike pappus- Nata 
washes and sagebrush slop rid Transition Zone; Columbia River drainage in central Washington and 
contcat” Oregon. Type locality: seer “Walle Walla, Walla Walla County, Washinton. Collected by Douglas. May— 
une. Low Tufted Hymenopappus 
Hymenopappus filifolius var. Pie aiaae (A. Nels.) B. L. Turner, Rhodora 58: fer 0 956. UiTymenoparynt 
eriopoda A. Nels. Bot. Gaz. 37: 274. 1904.) dpe from a stout woody caudex, sparse wee as in H. filifolius 
var. filifolius, 4-8 dm. high, Leaves 10-20 cm. long, the linear divisions of the blade ad greatly ta a Fa 
and ng ore or paid so, the leaf-axils de a lag woolly-tufted; heads few, long-peduncled; phyllaries 7-10 mm. 
long ni he = long, cream-colored; anthers 3-4 mm. long. In calcareous abil dry pia slopes; | Sf 
dene d Cla © Mountains, San Bernardino County, California, eastward through the mountains of Nevada 
to Dl Utah. Type locality: ee Valley, Utah. 
i eng filifolius var. lugens (Gree ene) Jepson, Man. FI. PI. Clit 1128. 1925. PE germ ag! fe 
fugens Greene, ia 4: 
br ate 9 lo: 
i he 
s, San Bernardino Mountains, et Beranrdiva ounty, cea ok ae south through the mountains of 
San Diego County to “northern Lower California: also in southwestern Utah, Nevada in the Virgin Mountains, 
and in Arizona. Type locality: San Bernardino Movetss atl 
. Hymenopappus filifoliue v cipkat L. Turner, Rhodora 58: 227. 1956. Habit as in the p 
ceding taxa; leaves 8-20 ¢ m. long, Nhe “divisions of its leaf-blades rather woolly, not crowded, Vang but not at Pal 
filiform; phyllaries 8-14 m: — eS mm. long; anthers 3—4 mm. long. In sandy or grave ese 
soil, western Uderpic vat sont hern Gone eae ent eastern Arizona to Gert Sag ee ‘Nevada, and the Provi- 
dence oe s, San Bernardino County Cole Type locality: Las Veg: 
peat ppus filifolius var. nanus ( =. B. L. Turner, Rhodora 58: oar aerial (H ymenopappus nanus 
Rae a agit? FI. 34: 53. 1914.) bil ig td ose plants from a stout, branched. woody caudex, the naked. 
white-floceos ems 1-3 dm. hi gh, bearing ins ec nnlh war pl sowres densely white-tom rates throughout, 2-6 
oe oe ng, linear divisions of pin Pap geet leaf-axils de coe oolly-tufted; phyllaries 6-9 mm. long; 
. long, light — anthers heer Oce ng in eile areous soil in the pinyon-juniper 
rary ate j wrsaltbtg Inyo Cow Califor 28 shore in Mohave ‘Coats, Arizona, eastward in the desert ranges 
of central Nevada to Utah h. Tepe i oa Cece Creek Post Office, Elko County, Nevada. 
99. HYMENOTHRIX A. Gray, Mem. Amer. Acad. IT. 4: 102. 1849. 
Slender, erect, annual or perennial herbs. Leaves alternate, petioled, biternately or tri- 
ternately compound. Inflorescence cymose-panicled with numerous heads. Heads yellow, 
* Treatment based upon the recent monograph of Billie Lee Turner. 
