DrickeUia. COMPOSITE. 299 



lower opposite, the upper alternate, and long naked peduncles bearing solitary 



heads. — Walp. Eepert. vi. 106; Benth. & Hook. Gen. ii. 243. Ildojyue, Benth. 



Bot. Sulph. 20, t. 14, not of Xutt. 



Neither of the two known species have yet heen found within the actual limits of the State, oue 

 being farther south, the other southeast. 



1. H. fasciculata, Walp. Scales of the involucre very numerous and closely 

 appressed, scarcely striate : akenes slender, flattish, hispid on the lateral angles : 

 pappus of 2 or 3 almost barbellate awns and as many broad chaffy scales which are 

 truncate and lacerate at the summit: leaves palmately 3 — 5-parted or cleft, and 

 with the divisions sinuate-lobed. — Helogyne fasciculata, Benth. Bot. Sulph. 1. c. 



Var. Xanti, Gray, with the leaves round-reniform and mostly only obscurely 

 lobed. — l'roc. Am. Acad. v. 158. 



Lower California, Magjalena Bay, Binds. Cape San Lucas, Xanlus, the variety. 



2. H. pluriseta, Gray. Scales of the involucre striate, looser and fewer (20 to 

 /t^v 25): akenes shorter, terete - 5-angular r pubescent: pappus of 10 to 12 slender 



barely scabrous awns or bristles and as many narrow acute or pointed chaffy scales : 

 leaves small, acutely and irregularly cleft or incised. — Pacif. B. Rep. iv. 'JO, t. 9. 



San Bernardino Desert to Williams' River and canons of the Colorado, Bigclow, Newberry, 

 Parry. 



2. EUPATORIUM, Toum. 



Head 3 - many-flowered. Involucre various. Beceptacle naked. Corollas 5- 

 lobed or 5-toothed. Akenes 5-angled, with no intermediate ribs. Pappus of 

 numerous rather rigid capillary scabrous bristles, forming about a single series. — 

 Perennials, mostly with opposite leaves. 



A huge and widely dispersed genus, copious in the Atlantic States, extremely scanty in those 

 of the Pacific, two species barely reaching California. 



(W- 1. E. occidentale, Hook. Almost glabrous, slightly glandular, a foot or two 

 high from a suffrutescent base : leaves commonly more or less alternate, on very 

 short petioles, ovate, triple-ribbed near the base, somewhat serrate : corymbs small 

 in a crowded panicle: heads 15 — 25-flowered : scales of the involucre in nearly a 

 single series, shorter than the pink or pinkish flowers. 



From eastern slopes of the Sierra Nevada south to Ebbett's Pass and the Yosemite Valley ; not 

 rare in Nevada and the interior of Oregon, in cations, &e. 



2. E. sagittatum, ' 'iay. Minutely puberulent: leaves all opposite, petioled, 



liastately sagittate, entire : heads single or in threes at the ends of tin' diverging 



branches, peduncled: involucre imbricated, cylindrical, 30 — 40-flowered; the scales 

 coriaceous, appressed, with conspicuous foliaceous spreading tips : akenes glabrous 



with tin- sharp angles hispid. — PL Wright, i. 88, note. 

 Southeastern part of California probably (294, coll. Coulter), and adjacent paits of Mexico. 



3. BRICKELLIA, Kll. 



Eead several— many-flowered. Involucre of imbricated striate-nerved scales, tie 



outer -horter. Receptacle naked. Corollas slender, 5-toothed or with 5 short 



lobes. Style, bulbous at base, the branches com nly thickened upward. 



Akenes 10-striate or ribbed. Pappus of numerous scabrous or barbellate capillary 



bristles, about in a single series. — Herbaceous perennial or partly shrubby plants, 



commonly ra1 hei I mdular or viscid or dotted, mosl resembling Eupatorium, except 



in the many-ribbed or striate akenes ; the Bowers white, whitish, or flesh-color. — - 



Gray, PI. Wright, i. 84. Brickellia, in part. Buibostylis, A Clavigera, DC. 



A genu of aboil 10 , with hcadquartei outheast of California, but cantily represented 



within lie si n 



