AcUnella. COMPOSITvE. 3<Jo 



...„ nns . ... 



striking large-llowcrca species. Hays an iiicli long wlion well developed. Disk at first dcprcsscd- 

 hemispheiiail, becoming globular in fruit : the sumnut of the peduncle thickened under it. 



* * Heads rather lan/e, the glohoxe disk half an inch or more wide, and the rays half 

 to three fourths of an inch long : root perennial : herbage glabrous or minutely 

 pubescent. 



3. H. autumnale, Linn. Stem leafy to the corynibDse anminit, a fdot to 3 or 

 4 foot IiIkIi : loaves broadly lanceolate (2 to 4 inche.s lonj;), fifton aorrato : heads 

 niosMv sevoriil on slondc^r rather Hhort poduneloa ; seah^s of the ])ap|)U.s ovate or 

 ovato-lancoolato and awn-pointed, from iialf to two thirds the l(<n<.;th of the corolla. 



Probably along the northern bonlors of the State, being coinnion in Oregon (the vai'. grandi- 

 fioriim, Torr. & (tray), also in Nevada ; thence to the Atlantic States. 



4. H. Bigelovii, Oray. Stern from one to three feet high, commonly simple : 

 leaves lanceolate or elongated-oblong; varying to linear, entire (3 to G inches long, 3 

 to 6 lines or rarely over an inch wide) : head on a slemler peduncde from 3 to 18 iiiclies 

 long : rays numerous, half an inch or more in length : disk depressed-globose, from 

 half to two thirds of an inch in diameter : scales of the pajipus ovate-lanceolate or 

 siibulate, tapering into an awn considerably shorter than the corolla. — Pacif. K. 

 Hep. iv. 107. 



Wet ground, Sierra to Yosemite "Valley, &c., and westward to Lake Co. A very branching 

 specimen, with much shorter i-ays, collected by Prof. Brewer, (near Monterey ?) may bean extreme 

 form of this rather than of the ibllowing species. 



* * * Heads middle-sized or small ; the rays .ihnrter than the globose disk, about a 

 quarter nf an inch or less long : root annual or biennial: stems loosely branching. 

 6. H. puberulum, "DC. Two to four feet high, paniculately much branched, 



minutely ciiiereous-i)uberulent : branches terminating in long shmder peduncles : 

 loaves lanceolate ami entire, or the lower oblong and rarely incisoly toothed, nearly 

 all much decurront : involucre mostly short and inconspicuous, as also the rellexed 

 mys : scales of the pappus ovate, with a short n\ucronate tip or awn, one third or 

 one fourth the length of the corolla. 



Common along water-courses and shores through tlie western portion of tlin St«te, from San 

 Francisco lUy southward. Disk half an inch or less in diameter. Kays 2 or at most 3 lines 

 long, usually few. //. Mexkanum, so called, in the Hotnny of Whipple's Expedition, from 

 Holinas Bay, appears to be a form of //. jnibr.rulum, to which may also belong Coulter's No. 

 357, although it has more slender rays and blunt pappus-scales. The materials of lioth are 

 insufficient. 



6. H. laciniatum, Gray. A span or two high, branched from the base, 

 cinereous-puberulcnt : leaves lanceolate or linear, mostly laciniato-pinnatifid, little 

 decurrent, one or two inches long : scales of the involucre mostly longer than the 

 rays, these shorter than the disk : scales of the pap]>na ovate, abruptly tapering into 

 a conspicuous awn, a little shorter than the broad corolla, about the length of the 

 akene. — Proc. Am. Acad. ix. 203. 



«' California," probably on the southeastprn bordei-s, Coulter (No. 350., 3r)a). Yaq\u T^iver, 

 Sonora, Dr. Palmer. Peduncles about 3 inches long. Hca<l with yellow disk 4 to 6 lines in 

 diameter ; the rays 2 or 3 lines long. Disk-corollas a line long, their pi-oi^>cr tube e.Ktrcmely 

 short. 



80. ACTINELLA, Nutt. 



Head many-flowered, with 8 to 12 pistillate mys ; all the flowers fertile. Invo- 

 hicro hemispherical ; its scales in 2 or 3 sericfl, nearly e(]ual, ovate or lanceolate, 

 rigid or coriacooua (or the inner with margins membranaceous), npi^ressed. Kocejv 

 taclo conical or strongly convex, naked, sometimes villou.s. l^iys conspicuous. 

 3-toothed or S-lobed at the truncate extremity ; disk-comllas elongat^'d-cylindm- 



