Colula. COMPORIT/K. .105 



Tlirnugli the interior ile.serf, from the Hooky Mountains to tlie. enHtcrii luisc of tlie Sierm Nevadn ; 

 iirohal)ly within tlie Inmiers of the State. Well referred by Prof. Katon to Artemisia ; but the 

 habit and the woolly akenes are peculiar. 



§ 3. Floivers in the head all perfect and fertile. — SKRirniuiUM, Be.sser. 



The N. Amoriean species of this see^tion are tlie true Safjc,-bush:.i or S!nge- brushes of the interior 

 arid region. Their licad.s are always few-flowered, generally narrow, an(l the scales of the invo- 

 lucre little scarious. 



A. CANA, Pursh, the Jf'ild Sage of Lewis and Clarke, or what Pursh took to represent it, is the 

 more northern species, with linear entire loaves, and probably does not nearly approach the 

 borders of C-alifoniia. 



9. A. tridentata, Nutt. Shrubby, a foot to 5 or G feot liigh, b\ishy-])i-anchcd, 

 c.anesceiit : leaves crowded, cnneate varying to linear-cuneate, obtusely 3-toothed at 

 the truncate apex, or the uppermost entire : heads spicate-clustered on the branches 

 of the compound narrow panicle, obovoid or oblong, 5 - 6-llowered. 



Eastern slope of the Sierra Nevada, from Sonora and Mono Passes, through Nevada and the 

 Rocky Mountains, in immense abundance. The larger stems attain the diameter of 5 or 6 inches 

 in favorable situations. Heads about 2 linos long. 



10. A. trlflda, Null Shrubby, a span nr two IiIkIi, iii turts, (•.lvnofl(•.(^nt : loaves 

 linciir and (3iitiro, or many of thoin lincar-cniKMvto and donply cloft into 3 linnar 

 lobes : heads more simply spicate, 3 - 8-flowered. 



Ebbett's Pass and Mount Dana (lircwer, Bolandcr); and through Nortlicni Nevada to tlio 

 Kooky Mountains ; often accompanying the foregoing. 



11. A. arbuscula, Nutt. Shrubby in dense tufts, barely a span high, very 

 canescent : leaves cuneate, deeply 3-cleft, or the side divisions again 3-lobed ; the 

 lobes from obovate to linear-spatulate : heads loosely spicate, about 8-(lowcred : outer 

 scales of the involucre more herbaceous and rigid. 



High Sierra Nevada, near Summit Station, E. L. Greene.. Thence eastward to the Rocky 

 Mountains. 



96. COTULA, Linn. 

 Head many-flowered, heterogamous ; one or more rows of marginal flowers pistil- 

 late and apetalous, mostly pedicellate ; the proper disk-flowers perfect and either 

 fertile or sterile. Involucre of about two ranks of nearly equal somewhat scarious- 

 marginod scales. Jlecoptaclo commonly flat or convex, naked, papillose. Disk- 

 corollas short, 4-toothe(l. Akonos obcoinpro.<?sod, mostly with thick or spongy 

 margins or wings, and notched at summit, destitute of pappus. — Small annuals or 

 some perennials, strong-scented when bruised ; with alternate leaves, and solitary 

 slender-ped uncled inconspicuous heads of yellow flowers : chiefly of the southern 

 hemisphere, whence two species have reached California. 



1. C. COronopifolia, Linn. Glabrous, rather succulent: stems creeping and 

 ascending, a sj)an to a foot long : leaves lanceolate or oblong-linoar, laciniato-pin- 

 natifid, toothed, or the upper entire, the base or broad petiole clasping or slioatbing : 

 marginal and pistillate flowers in a single series and on long pedicels : disk-flowers 

 on shorter pedicels. 



Wet places around Ran Francisco Bay : doubtless introduced. Now widely diffused over the 

 world, mainly in the southern hemisphere. Head half an inch in diameter or less. 



2. C. australis, Hook. f. Somewhat hairy : stems slender, diff'usely much 

 branched, a spaix high : leaves usually twice pinnately parted into linear divisions : 

 heads very small : marginal pistillate flowers in two or three ranks, pcdicellod ; the 

 disk-flowers hardly so. — Fl. N. Zeal. i. 128. 



Waste places, San Francisco, Kellogg : also gathered in Oregon t>y E. Hall. Prolmbly a wnif 

 from Australia or Now Zealand, where it alwunds. 



