liuhia. cumposhm:. 881 



* « Heads larger, solitary, terminating naked peduncles : scales of the involucre oval 

 or oblong: sterns herhaceous or nearly so, mostly nnmerovs from the root, erect or 

 ascending from a decumbent base; the ivhite wool usually Jloccose and cojnous : lower 

 leaves often opposite, the others alternate. 



+■ Leaves narrow or cut into narroro lobes : akenes mostly slender: pappus conspicu- 

 ous, of 8 or 10 oblong or oval scales, the alternate ones commonly shorter or 

 smaller. 



3. B. lanata, DC. A foot or two l»igh, slcndor : loaves pimiatcly cleft or parted 

 into 3 to 7 laiicoolato or linear lobes, which are entire or sonietiines again few-lobed 

 or incisely tootlied ; uppermost and lowest leaves often nndivided : peduncles slen- 

 der : rays mostly 8 or 9, oblong, conspicuous : akenes glabrous or minutely liirsute- 

 puberulent. — //. lanata, tenuifolia, ieucophylla, & achillrmides, DC Achillea 

 lanata, Pursh. TrichophyllMm lanatum, I^Iutt. Heleniuni lanatnm, Spreng. Eri- 

 ophyllnm ca'spilosiim, Dougl. in Dot. Keg. t. 1167, one of the broader leaved forms. 

 'J'lie following are some of the varieties or forms of this polyniorphous species : first 

 taking for the type Pursh's and Nuttall's original, from the interior of Oregon, <^c. ; 

 witli middlo,-si/,(Ml liead.'^, glabrous and shortish akenes, and narrowly or ligulate- 

 linear lol)(\s to the leaves. B. Ieucophylla, DV., is founded on a form of this, with 

 leaves rather laciniate-toothcd or cleft than pinnatitid, and the wool more persistent 

 on the upper surface. 



Var. tenuifolia, Torr. & Gray {B. tenuifolia, DC), is merely the most slender 

 form, simple-stemmed, with very narrow lobes to the leaves, and .small heads. 



Var. grandiflora: has larger heads, the involucre (at most half an inch high) 

 densely clothed with persistent wool : akcnos sparstily hirsuto-jtuberulent : leaves 

 usually retaining tho wool on both sides, and few-lobed or laciniate, or the upper 

 linear and entire. — B. Ieucophylla, Torr. & Gray, in part. B. lanata, Benth. PI. 

 Hartw. 317. 



Var. achillceoides {B. achillceoides, DC.), with branching leafy stems, more or 

 less laciniately bi[)innatifid leaves, middle-sized or small heads, and minutely hir- 

 sute-puberulent (sometimes glabrate) akenes. 



Var. brachypoda: a stout form, with thickish and obovate leaves pinnatifid 

 into short linear-oblong (entire or I - 2-toothed) lobes, some of tho upper opposite : 

 heads rather small, corymbose-clustered or in threes on short or shortish jieduncles : 

 nkenes glabrous or nearly so. 



Common in Cnlifornia, especially nortliward near tlio const, cxtomliiig to PiiRot Sound and tlio 

 interior of Oregon ; the typical form not seen soutli of Ukiah. V^ir. grnvdi flora, on liillsidos, 

 along tho Sacramento an<l its tributaries. (A form between this and the next variety, Guadahipo 

 Island off Lower California, Dr. J'dlm^r.) Var. achilhnnidcs, near San Francisco and northward. 

 Var. brachypoda, on the sea-coast at Shelter Cove, Mendochio Co. ; a sea-side and seemingly 

 rather abnormal form, perhaps of De Candolle's B. Ieucophylla. Receptacle varying from convex 

 to decidedly coincal ; but the differences in this respect not con-elated witli the other very 

 various differences in foliage, size of the head, smoothness or otherwise of the akenes, &c. Tube 

 of the corolla mostly glandular-hirsute, sometimes beset with almost sessile glands. Scales of the 

 pappus varying from oval to broadly linear, .sometimes of two lengths and forms, sometimes all 

 nearly alike. It seenn imiwssiblo to distinguish tho forms here inilicateil into species. 



4. B. integrifolia, DC. About a sjian high, in tufts : leaves varying fron\ 

 linear to spatulate, entire, incisely few-toothed, or the lower and more dilated ones 

 S-.'i-lobed : heads rather small or middle-sized : rays to 8 : disk-corollas minutely 

 glandular, especially the tube : akenes glabrous, or sometimes obsrundy glamlular 

 towards the summit. — Trichojdiyllum viultlfiorum, JS'utt. in Jour. Acad. Philad. vii. 

 37. 7\ integrifolivm. Hook. Fl. i. 31G. Bahia Ieucophylla, Torr. S:. (Jniy. in jmrt. 

 B. cuneata, K(dlogg in Proc. Calif. Acad. v. 49, a form with more toothed or 

 lobed leaves. 



High Sierra Nevada, at or above 8.000 feet, from Mono Pass nortliward, through Nevada and 

 the interior of Oregon, to tlic Rocky Mountains. Involucre 3 or 4 lines Iiigii. Ih'cejUjide vary- 



