Artemisia. COMPOSIT-E. 367 



peduncled, hemispherical, the flat or at length low-convex disk half-inch broad : disk-corollas 

 with flattened tube and 3 small lobes, not surpaisiui; the disk-floivers, regularly j-a-tootLed, 

 not at all lignliform. — Linnaea. vi. 521. T. J/nronense, Xutt. Trans. Am. Phil. Sm.- 1. l., in 

 part ; Torr. & Gray, Fl., in part : Gray, Bot. Calif, i. 402. T. degans, Decaisne in Fl. Si rrts, 

 ser. 2, xii. t 1191. Oii„il,j,ilLis camphoratus, Less. Syn. 260: Hook. Fl. i. 321, as to pi. 

 Calif, only. Omulotes camphorata, DC. Prodr. vi. 83. — Sea-lje;u.lK-s, Sau FrauLisco, Cali- 

 fornia ; first coB. by Mni:f_s. next by Chamisso. 



§ 2. Low perennials: slender stems more naked above, bearinL' rather small 

 globular head.s : leaves less dissected or entire : corolla of disk-flowers not oblique 

 nor dilated at summit, regularly ^-i-toothed : akenes usually utricular : pappus 

 obsolete or none : receptacle convex or conical. — § Sphceromeria, Torr. 6c Gray, 

 1. c. 415. Splicerijinerifi. Xutt. Trans. Am. Phil. Soc. n. ser. vii. 402. 



* Herbaceous to the thickened root : leave* di-sected: receptacle densely fimbrillate-hirsnte. 

 — T. potentiUoides, Gkat. silvery-sericeous : steins decumbent or ascending, a span to a 

 foot long, tlie naked summit bearing a few slender-peduncled souiewliat corvmbiform-panic- 

 ulate heads (of 3 or 4 liue^ in diameter) : radical leaves 2-3-pinnately and cauline 1-2-pin- 

 nately parted into rather few mostly linear lobes : bracts of the involucre roundish-ovate or 

 obovate. — ■ Proc. Am. Acad. ix. 2U4 : Bot. Calif. 1. c. Aiiimisia potentilloides. Gray, Proc. 

 Am. Acad. vi. 551. — Eastern ranges of the sitrra Xevada, California and adjacent Nevada, 

 l^mmon, Anderson. 



* * .Suffrutescent at base, erect: leaves simply or pedately cleft or entire: receptacle not hirsute, 

 sometimes conical: heads only 2 lines broad. — Si^hisruintrio, Xutt. 



T, diversifolium, E-4.tox. (ilalirons, very smooth, S to 15 inches high, leafy : leaves some 

 narrowly linear and entire, 1-nerved, some pinnately or pedately parted : heads several or 

 ratlier numerous in a corymbiform cvme, slender-peduncled: female flowers S or 10, with 

 3-4-touthed corolla. — Bot. King Exp. ISO, t. 19. — Utah, in the American F'ork Canon; 

 fir.-t coll. 1)V JVatson. 



T. canum, E.\tox. Silvery with minute close tomentum, a span or two higlt: lower leaves 

 cuneate and 3-lobed or 3-cleft ; upper linear-lanceolate, mostly entire : heads few or several, 

 very short-peduncled or in clusters of 2 or 3 terminating the sliort brandies of tlie cyme : 

 female flowers 4 to 8, with a truncate obscurely toothed corolla. — But. King Exp. IT'.i, 

 t. 19, f. 8-14; Rotlirock in ^'heeler Rep. vi. 366. — 2Cevada, in a canon of E. Humboldt 

 IMoimtains, ]Vatson. Olanche Jlountain, S. E. California, Bothrock. 



T. Nuttallii, Torr. & (tk.vt. Sih ervK^aaesceut, loosely cespitose, a span high : leaves 

 short, mostlv broadly cuneate with tapering base, obtusely 3-5-lobed at the broad summit ; 

 those of the flowering stems usually oblong or linear and entire : hea'ls few. somewhat panic- 

 ulate or looselv clustered, some of them slender-pechmculate : involucre very scarious. — 

 Fl. ii. 415. Siihceromeria anjentea, Xutt. Trans. Am. Phil. .Sue. vii. 402. — Eocky Mountains 

 of X. Wyoming, Xiittall, Parry. 



T. capitatum, Tork. & Gray, 1. c. Silvery-canescent, densely cespitose, a span high : 

 leaves simplv or pedatelv 3-5-parted into linear lobes, or S'jme of them only 3-cleft at sum- 

 mit : flowering stems scapitorm or 2-4-leave'l : heads 10 or more, se-sile in a globose gl...m- 

 ernle. — Sphirromfria capitata, X'utt. Trans. Am. Phil. Soc. 1. c. — Kucky Mormtains of X. 

 "WyoniiuLj;, Xuttall, Parry. 



178. ARTEMfSIA, Tourn., L. TTormwood. .Sage-bku-ii. Mugwort. 

 (Ancient name of Mu2wort, in memory of Arteim'sirj, wife of Mausolus.) — 

 Herlis and lovr shrulis (chiefly of the northern hemisphere, and most abimdant in 

 arid regions), bitter-aromatic; with alternate leaves, and small paniculately dis- 

 posed heads, commonly nodding, at least when young; the flowers yellow or 

 whitish, or turning brownish, usually sprinkled with resinous globules. Anthers 

 commonly tipped with subtdate-acuminate appendages, in the manner of Am- 

 hrosia. but not inflexed. — Besser in DC. Prodr. vi. 93. Artemisia, Ahrotanum, 

 tv Absinthium. Tourn. 



