334 COMPOSITAE 
cinereous- Asus loge heads large in a racemose or paniculate inflorescence ; involucres 12- 15 mm 
high, campanulate or hemispheric; phyllaries up to 2 mm. wide, imbricate, appressed, cinere ous- 
oaberaie nt, 6-10-seriate, the shor we deotel ed fara rays 13-30, purple, 1-1.7 cm. long; achenes 
compressed, sparingly hairy, the papp 
Dry slopes in yellow pine ian Bee racine ‘ddak: Laguna Mountains, San Diego County, California. 
Type locality: in recreation area at 5, 200 fee t, Laguna Mountains. July-Aug 
3. Machaeranthera shasténsis A. Gray. Shasta Aster. Fig. 5570. 
 parcontiomonghe — Gray, Proc. —r eet 6: 539. 1865. 
Aster shast A. Gray, Bot. C Calif. as. 332. 
cous "A with a woody root and “ peo branched caudex, 5-20 cm. high, usually several- 
stemmed; stems ascending or decumbent, usually branching, often le densely cinereous- 
puberulous with incurved hairs and sometimes glandular above. Basal leaves spatulate to ob- 
ne : Wigs 
isnceolate, 1-6. ong, tus cutish, cuspidate, tapering into a petioliform 
ntire or ews too ed, See an cae subcoriaceous, 1-nerved; stem-leaves oblanceo 
late or oblong to linear, m. long, usually entire, those of the branches reduced to bracts; 
c e or panicled, in ee dee forms solitary, 1- : olucre campanulate to 
turbinate, 4-5-s iate, 6-8 mm. high, the phyllaries linear or lance-linear to oblong, acuminate or 
acute, wit ait usually purplish base and shorter, usually spreading, herbaceous tip (obsolete 
in the inner ones), ciner puberulous and rarely at all glandular; rays 8-20, violet, 5-7 : 
long, neutral or Siietinice Distillate: disk corollas often pu ere short-pilose on the teeth; ase 
pilose; pappus sordid, that of the ray-achenes often greatly reduced, that of the disk norm 
Dry slopes, Canadian and Hudsonian Zone eed Lake National Park, Oregon, to Mount Shasta, sumatil 
County, California. Type locality: Mount ceaate July—Sept. 
Machaeranthera apontensis var. praii ate. (Howell) Crong. & Keck, Brittonia 9: 238. i937 (Machaeran- 
thera eradiata How me th N.W. Amer. 314. 1900; M. ert ona sf ‘Macbr. Bot. Gaz. 62: 148. 1916; M. inops 
var. atrata Nels. ‘& M acbr. loc. oes ‘Plants cs hth 5-25 ¢ igh; stems few, sto ‘cata, ascending, arising 
from a aad root, canescent— puberulent; lower leaves pH fete up to 10 mm. broad, attenuate below to 
a margined petiole, 2-6 cm. long, upper sessile, somewhat reduced, prong cteogoe entire or somewhat too ed; heads 
Siiaiepherie. the phyllaries i cs ss of 3—4, densely aaedilar, the canescent pubescence excageag or lacking, ee tips 
darkened and somewhat squarrose; achenes «gy sgt Rocky lidges? southern Oregon ot Siskiyou Moun- 
eas to 5 County, Califor aa "Type locality: Sco’ Fears Siskiyou ome Californ 
haeranthera shastensis var. gl SE aie (Piper) Cronq. & Keck, Brittonia :: "38. 1957. (Aster 
glossophaiug teh Re fo pwd 29: 646. 1902; rf Pees egies var. glossoph yllus Cronquist, Vasc. Pl. Pacif. 
5.) Fila nial from a wood: the woody caudex little or not at all branched; stems 
fon “ einen Ba sly Me fe ‘erect, short-canescent veraeiieist | leaves oblong- apaeeietes he. upper linear- oblance- 
$ cm. lo 
: ; se 
adjacent ranges from Crook, Noe a and — Counties, Oregon, south in eastern California to the Lake 
gece region, and eastward into Nevada. + variable and intergrading with the various local forms of 
M. canescens. Type locality: "Black Butte. Jelierss n County, Oregon 
“Shs rhasrentaré shastensis var. latifolia (Cronauist Crongq. ‘& Keck, Brittonia 9: 238. 1957. (Aster 
— var. latifoliuns C deem Vasc. Pl. Pacif. Northw. 5: 94. A585) = been Figo a ne: oor root and 
5-15 
sessile; he. ads Eeaiteckteic. hee Pedicel puuaatey an ‘canescent-puberulent;, ghflacies mostly in series of 3, 
rather broa: d, glandular-margined, the rather thin, deltoid tip squarrose; achenes gray as in M. shastensts. 
oose nee slopes at heh altades in the Wallowa Mountains, Oregon, and eo hamane Mountains in 
Deschutes County. Oregon. ocality: middle fork of the Imnaha River. Wa ‘ies: 
Machaeranthera ou var. montana ( copes Cronq. & Keck, Brittonia : ne agers (Machaeran- 
thera montana Greene, Pittonia 3: 60. 1896, emended op. cit. 4: 24. 1 899.) Perennial with a woody root and stout, 
short, branched caudex, oe many- stemmed, 5- 12 cm. = or less g oe and cinereous; leaves 
re 
phyllaries usually ee atHote, senctios ges of 4, firm, ge saae § usually ensely cieadular an more 
oer sel ent-puberulent. the ch ‘tips usually ns agg ce ale forests and A at high elevations. Hud- 
= fden rs he Sierra Nevada from Sonora Pass. Tuolumne County, and Seretwater Mountains, Mono 
Cot ounty, south to gui paces (ao and on ‘the wieker on cone ads ts Nevada. The plants from Sonora 
Pass usually have narro aves and a poy ers ery from stanelad to nearly glandless. At lower 
decutaas taller Pathos are ae ee nick apparently intergrade ith the M. leucanthemifolia of related M. canescens 
complex. Type locality: ‘‘eastern slope of the California intra 
4, egrcoenenig tile canéscens (Pursh) A. Gray. Hoary Aster. Fig. 5571. 
Aster canescens Pursh, Fl. Amer. Sept. 547 
Dipl abil incanus Lindl. xe . Reg. 20: rh 1693. 
Diet Amer. "Phil. S oc. IT. 7: 301. 1840. 
Mditidustiere ada Grr Smiths. Tone. 35: 89. 1852. 
Machaeranthera canescens var. glabra A. Gray, loc. cit. 
Aster inornatus Greene Seothes'3: 119. 1895. 
sites Greene, loc. cit. 
aac i A Greene, Pittonia 4: 24. 1 
Machaeranther ttenuata ag ae Fl. N.W. Amer. re 1900. 
1905. 
thera ampere rf 
Machaeranthera hae A Nels. Amer. Tourn. Bot. 21: eh. 
Biennial (sometimes perennial), 15-60 cm. high, usually several- sir pre and ponsculatoy 
ranched; stems cinereous-puberulous, ee “stipitate-glandalar especially ve, Lower leaves 
3 oblanceolate, 1.5-8 cm. long, 3-13 mm. wide, acute or obtuse, na i into a petioliform 
base, sharply spinescent-toothed to nearly entire, satisoriatooiie, usually densely puberulous ; stem- 
