416 COMPOSITAE 
Tribe 5. ease eae se * 
mipatar ae least those of the disk) yellow or nged with purplish (some spp. of Luina merely 
yellowish) ; ps ts with all va vehaie al pra a disk. el fertile = lipeci divided styles; in- 
co ral bracts f 4 or more; pappus well developed at least in the disk-flow 
cee leaves dei (or sometimes some of the reduced uppermost ones ofieets: perennial herbs with the 
style of Senecio. 108. Arnica. 
Cauline leaves all or nearly all alternate (or the leaves all basal) ; styles and habit divers 
Pappus erideatyy plumose; style-branches with elongate, slender, hairy appendages; perennial herbs, 
discoid or wi —— radiate. 109. Raitllardeila. 
Pappus oa at ins ose; splebranches with deltoid or eer appendages, or a 
St alin be = penile, truncate o arly so 
Involu te) 
oa 
, and essentially exappendiculat 
£1 on ries of equal, t-connivent bracts, lh ing with some smaller, 
2 Sed oe ones; plants ‘of pea habit, but not depressed and dichoto mously 
ranched. 
Heads Faametea = less often discoid, the pistillate flowers if present bara (aemab some- 
very shortly so); herbs or shrubs. 
Heads peta the 2 or more rows of marginal flowers stilt, nie Subteks filiform, 
peer corolla; herbs. 15. Erechtites 
Involucre of 2 distinct, subequal series of bracts, the outer rather ey ours Wearekont: sub- 
dichotom: ae bran chat: -— forming plants; heads discoid. 113. Psa athyrotes. 
Style-branches not ote rooataiag See in some spp. of Tetradymia), with or without well- 
ds merely except in Crocidium. 
Heads radiate; style. oo with a flat, deltoid, externally short- hairy ba itis SP diminu- 
tive Cro 
Heads isco: thos Bh teat nearly or quite exappendiculate, ae direkt? cabal and 
are the _— c lines extending nearly or quite to the blunt or acute tip; perennial 
oa ie 
sue with 1 narrow leaves (less than 5 mm. wide), these sometimes reduced to scales, or 
Involucral heats conspicuously imbricate in several series — among our genera 
of the Senecioneae in this respect). 
118. Lepidospartum. 
Involucral bracts uniseriate or nearly so. 
ae lucral bracts only 4-6. 117. Tetradymia. 
ucral bracts more numerous, commonly about 16. Peucephyllum. 
Herbs (sometimes si endy chip OM with broader leaves, at least i” gee peeved ones 
r more 
Flowers white, sometimes 
+h AD 
inged with pink or eee = i ee or orange; plants with Bee disk. Rogice and 
undi vided & or nearly undivided styles, ps in Dimere 
Involural — and flow more than s not plumose; erect perennial herbs 
Pappus o merous capillary bist heads unlike, the plants shes ame cious. 112, Petasites 
Papens none; menee alike, th 
106. Adenocaulon. 
2 or sometimes 3; pappus Denedi ade annuals 
107. Dimeresia. 
106. er LON Hook. Bot. Misc. 1: 19. 1830. 
gto acle naked. Anthers se ie strongly sagittate but 
Pappus none. i 
n, , and kaulon, stem. 
_A genus of 4 s western tan America, one in eastern Asia, one in Guatemala, and one in 
Chile. Type species, gy pote tng bicelr Hook. 
= Adenocaulon — Hook. Trail-plant. Fig. 5717. 
— aulon bicolor Hook. ene: eS a 2S 
aulon paves Nui oo rans, Amer. Si Sc ate ia yas 
Adeaccoeles bicolor Bi coe Torr. & Gray, FI. 
s-rooted, slender perennial up to nearly is 
sle tall. Le pn mostly near the base, lon 
Borie reich and thin, deltoid-ovate to cordate or subreniform, m. wide, essen ntia ie 
glabr — — closely white-woolly 
lobed ; luc 
1840. 
N. Amer. 2: 94. 1841. 
rnia, thence southward in "the Slerce Revids 
and in the ‘Const Ranges to Santa Cruz County; a i 
Juan de Fuca, and about Fort Vancouver on the C 
so in ear ae. Type locality: Straits of 
olumbia Rivet June-Sep 
107. Nee seatalara A. Gray, Syn. Fl. N. Amer. ed. 2. 12: 448. 1886 
scoid, 2-3-flowered, the flowers tubular and perfect. Involucre of 2 or 
times 3 herhaccas bracts, iin 3 at the base, each broadly rounded on the back and evely 
as contributed by Arthur John Cron 
; In the Senecioneae, the term Mawphacrat sag is used instead of ‘‘phyllaries.” 
