Bahia. COMPOSITE. ' 379 



Dry plains, common from Santa Barbara soutliwanl. Heads somewhat clustered ; the invo- 

 lucre only 2 lines long. Kays generally 5. The state with pappus in the disk as well as ray was 

 collected by Prof. Brewer in the Santa Maria Valley, Santa Inez Mountains, &c. 



* * Heads more or less pedunded terminating the branches, tvith 6 «o 8 rays : recep- 

 tacle obtuseli/ conical: anther-appeiidages ahriiptly tipped with a very slender 

 linear-setiform appendage {in the manner of Btcri<elia) : pjappus loth in disk and ray 

 0/ 8 or 10 chaffy scales. 



6. A. Wallacei, Gray, 1. c. Densely clothed with long and very floccose 

 Avhite wool, at length ditfusely much branched, an inch to a span high : leaves 

 obovate or spatulate, entire or somewhat 3-lobed at the apex : scales of the invo- 

 lucre obtuse : pappus of 8 or 10 short and firm oval or oblong obtuse and pointless 

 nerveless scales. — Bahia Wallacei, Gray in Pacif. E. Eep. iv. 105; the form with 

 golden yellow ray as well as disk. 



Var. rubella, Gray : a form with pale purple and white rays. — Bahia rubella, 

 Gray in Bot. Mex. Bound. 95. 



Dry plains, from near Los Angeles and San Felipe, Wallace, Parry (the variety). Also on the 

 Colorado {Capt. Bishop), and the southern borders of Utah, Palmer, SUcr. As yet a rare species. 

 Style-branches tipped with a short subulate cone ! Scales of the involucre involute with age in 

 the manner of the genus. 



7. A. lanosa, Gray, 1. c. Loosely floccose-woolly, an inch to a span high, at 

 lengtli tliii'usely branched : leaves linear, mostly entire : scales of the involucre 

 linear- oblong, rather acute : rays white or rose-color : akenes slender : pappus of 4 

 or 5 subulate scales tapering into a slender scabrous awn, and as many alternating 

 oblong and awnless or pointless scales. — Burrielia {Dichceta) lanosa, Gray in 

 Pacif. E. Eep. 1. c. 



Gravelly hills and plains, on the Colorado, near the Mohave, &c., Bigclow, Cooper. Also in 

 Arizona and S. Utah. Style-branches obtuse, or apiculate with a minute cusp. Scales of the 

 involucre almost conduplicately infolded at maturity, enclosing the akene. 



. § 3. Floccose-woolly, depressed, ivith mostly alternate leaves : involucre narrow : rays 

 8 or 9, small: receptacle fiat : akenes linear, compressed, with callous margins 

 exceedingly villous : 2^<ippus of 2 chaffy scales : anther-appendages oblong- 

 ovate. — Eatonella, Gray. 



8. A. nivea, Gray, 1. c. An inch or so high, in a small tuft from a slender 

 root, white with soft wool : leaves much crowded, obovate-spatulate, entire : head 

 barely exserted on a short naked peduncle : scales of the involucre linear-oblong, 

 acute, partly embracing the comparatively large akenes of the ray : pappus of a 

 pair of broadly ovate conspicuous scales tapering into a slender short awn which 

 nearly equals the disk-corolla. ■— Burrielia nivea, D. C. Eaton in Watson, Bot. King 

 Exp. 174, t. 18. 



Foot-hills on tlie eastern side of the Sierra Nevada, Watson. Very likely to occur within the 

 State. A remarkable plant, evidently related to the foregoing, but it might lie i-egarded as the type 

 of a new genus. Head barely 3 lines long. Kays apparently either pale yellow or white. Style- 

 appendages very short and obtuse. Akenes almost 2 lines long, linear and slightly narrowed 

 downward ; the faces flat, smooth and shining, blackish ; a callous strong rib to each margin, 

 which is densely villous with very long and soft white haiis : scales of the pappus answering to 

 the margins. The receptacle is described as convex : but it is flat in the specimen examined, 

 naked and scrobiculate. 



69. BAHIA, Lagasca. 

 Head many-flowered, with 4 to 15 pistillate rays; all the flowers fertile. In- 

 volucre a single or more or less double series of thin-herbaceous oval or lanceolate 

 appressed equal scales, either plane or barely concave, not embracing akenes, dis- 

 tinct, or united at base, or rarely for a greater length. Eeceptacle flat, convex, or 

 conical. Eays oval, obovate or oblong, entire, or l)arely toothed at the apex : disk- 



