Troximoii. COMPOSITJi. 439 



fome- 



from a ?paa to a. foot high, slender : involucre permanentlv villous with apparentlv fo.,.. 

 what viscid hairs : ligule- exsened : clo-.-d head in frait from half-inch to hardly inch high : 

 fiUforni beak only about twiro the length of the whitish akene. — Proc. Am. Atad. xix. 72. 

 J.ontodon Jursulum. Hook. PL i. L"j6, therefore Taraxacum hirsutum, Torr. & Grav, Fl. ii. 

 4114, ex char. Barkhnu^ia Lessingii, Hook. & Am. Bot. Beech. 14.5, excl. s™. ' M,icr'> 

 rhymhus Lr.,swgii, Hook. & Am. 1. c. 3G1, excl. :^yu., for it is not Le^.^int's phint "described in 

 Linnaea. .1/. humile, Benth. PI. Hartw. 3iO, a small form. .1/. I-Jorj^„<ln, WiAVys's. Proc. 

 Calif. Acad., a larger form. Troxi mon apargioidim 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. graridi/loium. 



++ -H- Pappus much shorter than the almost capillary beak, tisually bright white. 



T. laciniatum, Gray, 1. c. Smootli and glabrous, or with .-parse soft pubescence : leaves 

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

 scapes a foot or two high : in\ olucre glabrous or glabrate, or base of the outer of the lan- 

 ceolate bracts tomentose : closed head in fruit not o\-er inch high : akene 2 and beak 5 to 7 

 lii:'-i long. — Shjlopappus laciniat".^ (original specimen, and one like it from Vancouver's 

 Island, Li/aH, small and with small immature heads, but apparently of the .species) and 

 especially var. lonnt/oUus, !N'utt. 1. c. Macrorhjnchus laciniatus, & var., Torr. & Gray, 1. u. 

 Tn.riinon grandijlonirn, var. tenuifoUum & var. laciniatum, Gray, Bot. Calif. L c. — Low- 

 ground, Brit. Columbia to Oregon, and California to San Franci-co Bay or nearly. 



T. grandiflorum, Grat. Lea^ e- hirsutely or cinereous-pubescent, or glabrate, spatulate to 

 lanceolate, sintiate-dentate to laciniate-pinnatifld, or even pinnately parted : scajjes stout, n 

 foot or two high : involucre broad, usually well imbricated; the ljract> lanate or tomentor^e 

 when 3'oung, often glabrate in age : li gules short : head in fruit an inch to inch and a l;alf 

 l.igh: akene 2 and capillary beak C to 8 lines long. — Proc. Am. Acad. ix. 216, & Bot. 

 Calif. 1. c, excL vars. Stylopapjpus grandiflorus, Xntt. 1. c. Mo-crorh'jpchvs grnndiflorns, 

 Torr. & Gray, 1. c. — Plains and moi-t hillsides, TTashington Terr, to .S. California, toward 

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



* * Perennial, with habit of the last preceding species : akene abruptly long-beaked from a, 

 bror.d truncate summit, 



> T. retrorsum, Gray, L c. Villous-tomentose when young: leaves pinnately parted into 

 linear-lanceolate tLsnally retrorse lobes, the terminal lobe long and narrow-, all callous-tipped : 

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

 narrow linear bracts hardly surpassed liy the soft white papptis : hgules short : akene .3 lines 

 and filiform beak about an inch long. — ilacrarhynchus retrorsus, Benth. PI. Hartw. 30 ; 

 Gray, in Wilkes Exp. xvi. .'373. M. angustifvlius, Kellogg, Proc. Calif. Acad. v. 47. — 

 Ofjen pine woods, California, from !Mendocino and the Upper Sacramento to mountains of 

 San Bernardino; first coll. by Phihtring & Braclxnndge, then by Ilirlweg. Also in S. "W. 

 Idaho, Sfi:iv_s. 



* * * Annuals, slender, mostly low. occasionally subcaulescent : flrj-i-ers yellow. — Jtfacrorhyn- 

 cA?w, Less. S^-n. 137, but "achenium plano-obcompressuni " is erroneous. Kymapleura in 

 corrig. {Macrorhynchus in text) & CryptopUura, Xutt. Trans. Am. Phil Soc. vii. 430. 



T. heteroph^llura, Greene. Sfjmewhat villosely or hirsutely pubescent, or glabrate: 

 lea^ es from spatulate to linear-lanceolate, denticulate to pinnatifid : scapes a span or two 

 (rarelv a foot) high: involucre oblong-campanulate, half to three-fourths inch high; ite 

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

 more or le-- pubescent with simple or gland-tipped hairs (not villous) : akenes various but 

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

 the w-hite or w-hitish pappus. — Bull. Torr. Club, x. SS; Gray, Proc. Am. Acad. xix. 72. 

 T. Chiknsr:, Gray, Proc. Am. Acad. ix. 216, & Bot. Calif, i. 439. Maaorhynchus heterophyllus 

 & Cryptopleura Cnlifarnlrii. Xntt. 1. c. 21. Californicus & M. heterophyllus, Torr. & Gray, Fl. 

 ii. 493. J/. Chileniis, Hook. Loud. .Jour. Bot. vi. 2.56. — Open and low ground throughout 

 California, at least near the coast, to Brit. Columbia, and east to Ctah. — Varies mainly in 

 the akenes; these generallv 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 passing into the follow-ing forms described by XuttaH, 

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



