3nrrosens. COMPOSIT.R. ^25 



awn, occasionally almost obsoioto. — Hrjmenoimna ? ulaucnm, Hook., seems to bo a 

 small form of this. Calais glanca, var. procera, (}ray, Pioc. Am. Acad. vii. 364. 



fiH^l3/V?,r'>r"""''" '" ^'''«°" towards the coast : Ukiah (A'cfhgr,) ; with laci,.iate.pinnati- 

 fid leaves but with narrower papi.us-scales. Tlie var. procera, on hills, Sonoma Co. to Mcii.iocino 

 Co &c. {Bolamlrr lorrcy, KcU.hj,,) and to Klamath Co., Oregon, Cronkhilc. Pe<lunclrs often 

 a loot long. Head three miaiteis of an inch to an inch long, esi)ecially in the variety, which ha.s 

 It broad in proportion, and the outer scales of the involucre fiom 3 to 5 lines wide. Corollas 

 bright sulphur-yellow. Akenes 2 to nearly 2^ lines long when mature. 



T). M. leptosepala, (Jray, 1. o. Mostly in.M-n elonder than thn ])reco(linir • 

 leaves siinil.u'ly oithov entire or laciniate-i.iiinatiii.l : head smaller: scales of the 

 involncro all lanceolate (or the outermost ovate-lanceolate) and f^Tadually acuminate- 

 pappus-scales about one lifth of the leiif^th of the more slender akene. — ScorzoneUa 

 lepUmpala, Nutt., 1. c. (]ahm liolnn.deri, (Jray, I'roc. Am. Ac;id. vii 3G/) C 

 laaniata, Gray, 1. c. viii. 302, coll. Hall, No. 313. 



SwampsIMcndocino and Iluniboldt Counties (Bnlandcr, Kdloc,,,): .also in Oregon. Involucre 

 fiaU an inch or innrc; high, narrower than in tlio la.st, as well as thJ scales n,-irrow and more taper- 

 ing ; but the outermost are .sometimes rather broad. ' 



+- -f- Scales of the involucre all rather obtuse : pappus of 5 two-chft scales, tvith a 

 jn-oportionally shorter axon in the sinus : acaulescent : liijules short. 



6. M. Parryi, Gray, 1. c. Scapes a si)an or two high, simple : leaves linear- 

 lanceolate, laciniate-pinnatiHd or entire : scales of the involucre ovate or oblon", in 

 about 3 series : awns of the pappus rather strongly denticulate, e.xtending to only 

 twice or thrice the length of the 2-cleft scale. — Calais Parryi, Gray in Pacif K 

 Rep. iv. 122, ik Bot. Mex. JJo.nid. 104. 



Nenr San Diego Pnm/. ITend barely linlf an incli liigh. Akenes not formed in tlio sppcimen 

 1 he species was referred to the Cahca/ais section on account of the pappus ; but the involncro 

 reters it to Scorzoiiella. 



§ 3. Pappm of IS (or rarely fewer) scales or awns, not plumose nor harhellate, sordid: 

 akenes taperinr/ more or less from below the truncate ape.r to the base: involucre 

 of mostly equal principal scales and a few short calyculate ones at base : an- 

 nnals, acaulescent, with simple scapes and small or viediocre heads. Proper 

 scales of the involucre lanceolate, and leaves either laciniate-pinnatifid or entire, 

 in all the species. — Eucalais. {Calais § Eucalais, DC.) 



* Awns of the pappus slender, naked and fragile, and with the scale at base nearly 

 obsolete, sometivies deciduous or tvanting. 



7. M. aphantocarpha, Gray, 1. c. A foot or two high, rather slender : head 

 half an inch high, many-flowen;d : lignles short : capillary awns of the pappus 

 barely scabrous, nearly twice the length of iho.akcm. — Calais aphantocarpha. Gray, 

 Proc. Am. Acad. vi. 552. 



Var. teneUa, Gray, 1. c. Slender, a span liigh, with smaller and fewer-flowered 

 heads : akenes inclining to clavate, the summit being mostly a little contacted • 

 awns of the pappus 2 to 5, with a distinct chafly-diiated bai^e, deciduous or very 

 fragile, sometimes apparently wanting. — (7rt/aja (Aphanocalais) teneUa, Gray in 

 Pacif. \i. Rep. iv. 114, t. 17. 



Hills of the Contra Costa Range near Monto Diablo (Hrcwcr), and in the same part of the State 

 5J|t»me/.9 The var. tcvella, Napa Valley, in grassy places {Bignlmo), and on the Sacramento, 

 I'llcfi. Akenes scabrous on the strong ribs, tapering towards the base, and the summit also slightly 

 contracted, but with no neck : the outermost pubesrent, fully 2 lines long in the larger form 

 The variety is most probably only a depauperate form of t)io larger. 



* * Scales of the pappus consplcnouH, 

 +■ From oblongdanceolate to oblong-ovate and acute, more or less tapering into the awn. 



8. M. Bigelovii, Gray, 1. c. Scapes a span to a foot or more high : leaves 

 generally pinnatcly parted into numen)U3 divisions : calyculate scales of the invo- 



