374 COMPOSITiE. Htmenopappus. 



ly on Ham's Fork, Ntittall ! — 2^ Stems 4-10 inches high, bearing 3-5 heads. 

 Invohicre tomentosr, scarioiis. Pnpptis! nearly as long as in H. tcnuifolius, 

 bur not exscrli'd bryond tiic very long villous hairs oftlie achcnium. Throat 

 of the corolla rrmipanulate, 5-toothcd ; the nerves marginal. — The plant has 

 the aspect of a Chieuaclis. 



119. BAHIA. Lagasca, nov. gen., in clench, hort. Madr. p. 28; DC. I. c. 



Bahia it Eriophyllum, Lagasca. — Trichoiiliyllum, NuU. 



Heads many-Ilowereil ; the raj'-flowers 5-11, ligulafe, pistillate; those of 

 the disk tubular, perfect. Scales of the subglobose, ovoid, or canipanulate in- 

 volucre in a single or somewhat double series, e(]ual, appressed. Receptacle 

 naked, or somewhat alveolate-fimbrillate. Tube of the corolla glandulap- 

 hairy. Branches of the style in the disk-flowers thickened at the apex, 

 obtuse. Achenia 4-sided, linear, or oblong-turbinate. Pappus of 4-10 oval 

 or oblong and mostly obtuse scarious nerveless small scales. — Perennial 

 woolly herbs or sutlVuticose plants (natives of the Pacific coast of America 

 from Chili to Noolka, of Oregon, Mexico, &c.) ; with opposite or alternate 

 often cleft or divided leaves, and solitary or corymbose and clustered heads, 

 with yellow rays, which often turn brownish in drying. 



* Shni/)l'i/ or siijl'nitcsccnf : heads corymbose. 



1. B. artcmisicrfoUa (Less.) : leaves crowded, mostly alternate, nearly gla- 

 brous above, densely lanate-tomcntose and white beneath, remotely pinnatifid 

 (the lobes 1-3 on each side, linear or oblong, obtuse) ; some of the upper of- 

 ten entire, spatulate-linear ; scales of the cylindraceous involucre scarcely 

 woolly, oblong ; rays small, oval ; achenia nilnut(^ly hispid along the angles ; 

 scales of the j)appus mostly 8, obtuse ; four of them (corres|)onding to the 

 angles of the achenium) linear, the others oblong and rather shorter. — Less, in 

 Linncea, 5. j^- I''*'- "-V ^- P- 2'53 ; Hook. S^- Am. ! hot. Becchey, ji. 149, <y 

 suj>pl. p. 353; DC.prodr. 5. p. 567. (Heads in the plant of (^hamisso 2| 

 lines long; in that of Douglas &c. (/}. Douglasii, DC! I. c.) 3-4 lines long.) 



j3.1 lower leaves sparingly pinnatifid; the upper mostly entire. — B. stae- 

 chadifolia /?. Californica, DC. I. c. ; AuK. ! in trans. Amcr.pJnl. sac. {n. ser.) 

 7. p. 374. 



California, Menzies, Chamisso, Douglas! Nuttall ! &:c. — A low shrub. 

 Heads on distinct jieduncleswhen the compact corymbs are simi)le, but often 

 somewhat fascicled and sessile. — Without nnich doubt thcB. st.Tchadifolia /3. 

 Californica of De Candolle is a state of his B. artcmisia^folia jJ. Douglasii; 

 but we have not the means of satislying ourselves whether the latter has been 

 correctly united with the B. artemisiwfolia of Lessing, which is said to have 

 sessile or slightly pedicillale heads, only two and a half lines in length. 



2. B. confcrlijlora (DC): stem and branches densely arenose-tomentose 

 or woolly ; leaves alternate, canescently tomentose beneath, i)innately 5-7- 

 parted, with narrowly linear segments, or often 3-parted, with the middle di- 

 vision 3-toothed at the apex; heads (small) in dense corymbs ; scales of the 

 ovoid involucre (about 5) obovate, refuse, woolly-eanescent ; rays 3-4, 

 small, nearly orbicular ; achenia slightly scabrous-pubescent: scales of the 

 pap[>us 8-10, oblong, denticulate, nearly equal. — DC! prodr. b. p. 657; 

 Nutt. ! in trans. Amer. phil. soc. I. c. 



