Troximon. COMPOSIT^E. 439 



from a span to a foot high, slender : involucre permanently villous with apparently some- 

 wliat viscid hairs : ligules exserted : closed head in fruit from half-inch to luirdly inch high : 

 filiform beak only about twice the length of the whitish akene. — Proc. Am. Acad. xix. 72. 

 Lt'ontodoii hirsutum, Hook. Fl. i. 296, therefore Taraxacum hirsutum, Torr. & Gray, Fl. ii. 

 494, ex char. Barkhausia Lefsliujii, Hook. & Arn. Bot. Beech. 145, excl. syn. Mucro- 

 rhi/)ichns Lessingii, Hook. & Arn. 1. c. 361, excl. syn., for it is not Lessing's plant described in 

 Linmea. M. humilr, Benth. PI. llartw. 320, a small form. il/. llarjhrdii, Kellogg, Proc. 

 Calif. Acad., a larger form. Troximon apargioidcs in part. Gray, Bot. Calif. 1. c. — California 

 near the coast, from Monterey to Washington Terr. Variable in size, the flowering head 

 .sometimes nearly as large as in T. (jrandijlortim. 



++ ++ Pappus nuich shorter than the almost capillary beak, usually bright white. 



T. laciniatum, Gnw, 1. c. Smooth and glabrous, or with sparse soft pubescence: leaves 

 elongated-lanceolate, laciniate-dcntate or commonly deeply pinnatifid into linear lobes : 

 scapes a foot or two high : involucre glabrous or glalu'ate, or base of the outer of the lan- 

 ceolate bracts tomentoso : closed head in fruit not over inch high: akene 2 and beak 5 to 7 

 lines long. — Stijiopappus laciniatits (original specimen, and one like it from Vancouver's 

 Island, Lyall, small and with small immature heads, but apparently of the species) and 

 especially var. loiujifolius, Nutt. 1. c. JiJacrorhi/nchus Juctnlatus, & var., Torr. & Gray, 1. c. 

 Troximon grand! florum, var. tcnuifolium & var. laciniatum, Gray, Bot. Calif. I.e. — IjOW 

 ground, Brit. Columbia to Oregon, and California to San Prancisco Bay or nearly. 



T. grandiflorum, Guay. Leaves hirsutely or cinereous-pubescent, or glabrate, spatulate to 

 lanceolate, sinuate-dentate to laciniate-pinnatifid, or even pinnately parted : scapes stout, a 

 foot or two high : involucre broad, usually well imbricated; tlie bracts lanate or tomentose 

 when young, often glabrate in age : ligules short : head in fruit an inch to inch and a half 

 high: akene 2 and capillary beak 6 to 8 lines long. — I'roc. Am. Aaad. i.\. 216, & Bot. 

 Calif. 1. c, excl. vars. Stylopappus grandiflonis, Xutt. 1. c. jSTacrorhynchus grandijlorus, 

 Torr. & Gray, 1. c. — Plains and moist hillsides, Washington Terr, to S. California, toward 

 the coast. Some forms seem to pass into tlio preceding. 



* * Perennial, wi;h habit of Iho last preceding- species : r.kcne abruptly long-beaked from a 

 broad truncate summit. 



T. retrorsum, Gr.vt, 1. c. Villou.s-tomentose when young: loaves pinnately parted into 

 linear-lanceolate usuallj' rctrorse lobes, the terminal lobe long and narrow, all callou.s-tippcd : 

 scapes about a foot high: involucre narrowly oblong, H to 2 inches high when mature; its 

 narrow linear bracts hardly surpassed by the soft white pappus : ligules short : akene 3 lines 

 and filiform beak about an inch long. — Macrorhijncluis rdrorsus, Benth. PI. Hartw. SO; 

 Gray, in Wilkes E.xp. xvi. 373. M. angustljuliiis, Kellogg, Proc. Calif. Acad. v. 47. — 

 Open pine woods, California, from IVIendocino and the Upper Sacramento to mountains of 

 San Bernardino; first coll. by Pickering & Brackcnridgc, tlicn by Ilartwrg. Also in S. W. 

 Idaho, Nevius. 



* # * Annuals, slender, mostly low, occasionally subcaulosccnt : flowers yellow. — .ffncrorhyn- 

 r/(!;.s\ Less. Syn. iy7, but "aelieninm plano-obeonipressuni " is erroneous. Kymnpleura in 

 corrig. {Macrorhynchus in text) & Cryptopkura, Nutt. Trans. Am. Phil Soc. vii. 4-30. 



T. heterophyllurn, Gukem;. Somewhat villosely or hirsutely pubescent, or glabrate: 

 leaves from spatulate to linear-lanceolate, denticulate to pinnatifid : scapes a span or two 

 (rarely a foot) high: involucre oblong-campanulate, half to three-f<mrtlis inch high; it.s 

 bracts erect, lanceolate or narrower ; outer decidedly shorter than the glabrous inner ones, 

 more or less pul)escent with simple or gland-ti])ped hairs (not villous) : akenes various but 

 at most 2 lines long, usually fusiform; filiform beak fully 3 lines long, mostly longer than 

 the white or whitish pappus. — Bull. Torr. Club, x. 88; Gray, Proc. Am. Acad. xix. 72. 

 T. Chilense, Gray, Proc. Am. Acad. ix. 216, & Bot. Calif, i. 439. JSIacrorhynchns hcterophijllns 

 & Ctyptopthuru Californica, Nutt. 1. c. M. Californicus & M. heterojihyHus, Torr. & Gray, PI. 

 ii. 493. ]\r. Chilensis, Hook. Loud. Jour. Bot. vi. 256. — Open and low ground throughout 

 California, at least near the coast, to Brit. Columbia, and cast to Utah. — ^'aries mainly in 

 the akenes ; these generally glabrous, occasionally outer ones pubescent or hirsute ; some- 

 times all alike and from 10-striate to acutely 10-costate; sometimes the outer ones more 

 acutely or even alately costate, and ])assing into the following forms described by Nuttall, 

 even taken as of different and peculiar genera, but they are rather conditions than varieties 



