Jficroseris. COMPOSITE. 495 



awn, occasionally almost obsolete. — Hymenonema 1 glaucum, Hook., seems to be a 

 small form of this. Calais yfam-a, var. procera. Gray, Proe. Am. Acail. vii. 3G4. 



Along streams, common in Oregon towards the coast : I'kiah (Kellogg) ; with laeiniate-pitinati- 

 lid haves, but with narrower pappus-scales. The var. procera, on hills, Sonoma Co. to Mendocino 

 Co., xi-. (JBolander, Torrcy, Kellogg) and to Klamath Co., Oregon, Oronkhile. Peduncles often 

 a foot long. Head three quarters of an inch to an inch long, especially in the variety, which has 

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

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



5. M. leptosepala, Gray, 1. a Mostly more slender than the preceding : 

 leaves similarly either entire or laciniate-pinnatilid : head smaller: scales of the 

 involucre all lanceolate (or the outermost ovate-lanceolate) and gradually acuminate : 

 pappus-scales about one fifth of the length of the more slender akene. — Scorzonella 

 leptosepala, Xutt, 1. c. Calais Bolanderi, Gray, Proc. Am. Acad. vii. 365. C. 

 laciniata, Gray, 1. c. viii. 392, coll. Hall, No. 313. 



Swamps, Mendocino ami Humboldt Counties (Bolander, Kellogg) : also in Oregon. Involucre 

 half an inch or more high, narrower than in the last, as well as the scales narrow and more taper- 

 ing ; but the outermost are sometimes rather broad. 



+- -i- Scales of tlie involucre all rather obtuse: pappus of 5 two-cleft scales, until a 

 proportionally shorter attm in the sinus: acaulescent: ligules short. 



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

 lanceolate, laeiiiiate-pinnatitid or entire : scales of the involucre ovate or oblong, in 

 about 3 series : awns of the pappus rather strongly denticulate, extending to only 

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

 Rep. it. 122, & Bot. Mex. Bound. 104. 



Near San Diego, Furry. Head barely half an inch high. Akenes not formed in the specimen. 

 The sp referred to the Calocalais section on account of the pappus ; but the involucre 



refers it to Scorzonella. 



§ 3. Pappus of 5 (or rarely f in r) scales or awns, not plumose nor barhellate, sordid : 

 akenes tapering more or less from below the truncate apex to the base: involve re 

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

 nuals, acaulescent, with simple scapes and small or mediocre heads. Proper 

 scales of the involucre lanceolate, and bans t ither laciniatt -pinnatifid or entire, 

 in all the species. — Euoalais. (Calais § Eucalais, 1>C.) 



* Axons of Hue pappus slaobr, uak,,l anil fragile, ami with the scale at base nearly 

 obsolete, sometimes deciduous or wanting. 



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

 half an inch high, many-flowered : ligules short : capillary awns of the pappus 

 barely scabrous, nearly twice the length of the alone. Calais aj.hantocarpha, (u-.iy. 

 Pine. Am. Acad. vi. 552. 



Var. tenella, Gray, 1. c. slender, a span high, with smaller and fewer-flov 

 heads: akeues inclining to clavate, the summit being mostly a little contracted 

 awns cd' the pappus 2 to 5, with a distinct chaffy-dilated base, deciduous or very 

 fragile, sometimes apparently wanting. — Calais (Aplianocalais) tenella, Gray in 

 Pacif. R Rep. iv. 114, t. 17.' 



Hills of the < '"iit ia 1 losta Range near Monte Diablo (/•'/• "■, ,■). and in the same part of the S 



1 '" rar. tenella, Napa Valley, in grassy places (B ad on the Sacra nto, 



akenes Bcabrous on the strong ribs, tapering towards the base, and the Bummil also slightly 

 contracted, but with no neclt : the outermost pubescent, fully 2 lines long in the larger form. 

 The variety is most probably only a depauperate for fthi 1 



* Scales of the pappus conspicuous, 



+- From oblong lance,, bit: /.. oblong ovati and acute, m m or less tapi ring into the aim. 



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

 generally pinnately parted iuto numerous divisions: calyculate scales of the invo 



