Bahia. COMPOSITE. 379 



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

 lucre only 2 lines long. Rays 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 peduncled terminating the branches, with 6 to 8 rays : recep- 

 tacle obtusely conical: anther-appendages abruptly tipped with a very slender 

 linear-setiform appendage (in the manner of Burrielia) : pappus both in disk and ray 

 of 8 or 10 chaffy scales. 



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

 white wool, at length diffusely 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, Siler. 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 

 length diffusely branched : leaves linear, mostly entire : scales of tne 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 (Dicluxta) lanosa, Gray in 

 Pacif. R. Eep. 1. c. 



Gravelly hills and plains, on the Colorado, near the Mohave, &c., Bigelow, 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, with mostly alternate leaves : involucre narrow : rays 

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

 exceedingly villous : pappus 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 the 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 be regarded as the type 

 of a new genus. Head barely 3 lines long. Rays 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 hairs : 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 barely toothed at the apex : disk- 



