352 COMPOSITAE 
12. Erigeron cervinus Greene. Siskiyou Daisy. Fig. 5593. 
Erigeron cervinus Greene, Pittonia 3: 163. 1897. 
rous-rooted perennial from a branching caudex, 1-3 dm. tall, the herbage glabrous except 
immediately under the heads, where usually fine . a lar, Leaves entire, the basal ones broadly 
oblanceolate to elliptic or obovate, up to 12 cm. g (petiole iacadday nd 15 mm. wide, usually 
—4, mm. 
high; plaries subequal, ei raceous purple- ig He the outer sagen the er acuminate; rays 
20-45, blue or sometimes pink-purp “Sa 10 mm. long, 1.3-2.7 mm: wide; “disk. corollas 3.5-5 mm 
long, ae limb so somewhat puhereleet ee the era Zt le- sara iarts obtuse or acutish 0.2-0. 25 
m. lon pus of about 12-15 bristles, with 4 few short outer setae; achenes 2-ne 
gL ea nd open pla Canadian Zone; Siskiyou Pid region of northwestern Cations ad adja- 
cent Oregon. ‘Pree locality : De: Creek Mou ntains, Josephine County, Oregon. June-early Aug 
13. Erigeron cascadénsis Heller. Cascade Daisy. Fig. 5594. 
Erigeron spatulifolius Howell, Fl. N.W. Amer. cok —— Not E. spathulifolius Rydb. 1899. 
Erigeron cascadensis Heller, Muhlenbergia 1: 6. 
Erigeron pentane Greene, Leaflets Bot. Obs. ;. co 1912. 
Perennial from a stout branched caudex which may surmount a short taproot, 5-15 c m. tall, 
the Site glabrous or with a few scattered glands and/or spreading hairs. Basal leaves ce. 
a cm. long, 5-1 i 
nous 
green with purplish acuminate or attenuate tip; rays 30 50, mia white, mm. long, 1.2-2. 
mm. wide ; disk-corollas essentially glabrous, 7A. 4 mm. long; style-a ppendages acute, 0.2- 
mm. ctor Be pappus double, the inner of 15-20 firm bristles, ‘the outer of short narrow scales ; achenes 
rved. 
2-n 
ah rocky places, moderate to high elevations in the mountains, Canadian and Hudsonian Zones; Cas- 
cade and TCclapnole Nokia ins, Satin + , from about the 43rd to the 45th carallel” Type locality: Pansy Camp, 
Cascade Mountains. June-Aug 
two 
14. Erigeron leibérgii EP Leiberg’s Daisy. Fig. 5595. 
Erigeron leibergii Piper, Bull. Torrey Club 28: 41. 
Erigeron chelanensis St. John, Sacral Stud. St. ne ce 13.107. 1929; 
rennial from a stout branched caudex which may surmount a taproot, 7-25 cm. tall; sac 
and invol soe sparsely to eoderaee villous-hirsute with flattened, flexuous hai irs and more 0 r less 
eaelia rtanduler Basal leaves tpn se ance ae to obovate or elliptic, sometimes ie 
nerved, entire o i wide; cau al, i 
to l 
developed, ovate to oblong or eo aclate: “etita tire or up to e disk 7-14 mm. wide; 
involucre 5-8 mm. high, the phyllaries subequal, thin, loose, green, the attenuate or acuminate tip 
often purplish; rays 20-45, mostly blue or pink, rarely white, 5-12 mm. long, 1. =. 2.0 mm. wide; 
Ge oncetas 3.0-4.3 mm. long; style-appendages acute or peutish, tak stly 0.25 mm. long; 
pappus of 12-16 bristles, sometimes with a few short, slender, Sito etae ; sed pe " -nerved. 
Cli a and rocky places at moderate elevations, Boreal Zone; ata a and Wenatchee Moatain of 
Okanogan, Chelan, and Kittitas Counties, grin tivetony Type lo cality: Mount Stuart, Chelan County. June-Aug 
15. Erigeron oreganus A. Gray. Gorge Daisy. Fig. 5596. 
Erigeron oeeren & Gray, Proc. Amer. ee 19: 2, 1882, 
ial with 
wintieh villas: stems lax, 5-15 cm. lon ng. Basal leaves pee ods spatu ate to obovate, coarsely toothed 
or incised, up to 9 cm. long and 2s em. wide; cauline leaves well developed, broadly lanceolate to 
elliptic or ovate, up to 4 cm. em: and 1 cm. wide; San ds 1 to several in a leafy inflorescence, the 
- sk 9-13 mm. wide; Seale e 5-7 mm. high, glandular and viscid-villous, the ica we loose, 
ual, thin, green, attenuate rays mostly 30-60, bluish to more often pink or white, on 
disk-coro llas 3.4-4.7 m pappus simple, of 15-20 bristles racbich are sii ceiscristically 
urled and twisted for at “least the upper half. 
Moist shady cliffs and ledges, Humid Transition Zone; Caentis River Gorge, most frequently collected on 
the Oregon side. Type locality: Columbia River, Oregon. June—Sep 
16. Erigeron basalticus Hoover. Basalt Daisy. Fig. 5597. 
Erigeron basalticus Hoover, Leaflets West. Bot. 4: 40. 1944. 
Stem ral fro ial taproot, sprawling or pendent, branched, leafy especially near 
the tip; eethert spreading-hirsut and finely gla rahul Leaves cuneate to obovate, up to about 
4 cm. long and 1.5 cm. wide, more or less de a and often irregularly trilobed, the lobes broad, 
ium slightly lobed amity heads terminating the branches, the disk 8-12 mm. wide; involucre 5-6 
mm. high, densely glandular and sometimes sparsely lon g-hairy, the phyllaries subequal or slightly 
imbricate, —_— the slender acuminate i ps commonly purplish; rays 25--30, pink or pink-purple, 
5-7 mm. long and 1.5 mm. wide; disk-corollas 3-4 mm. long; s Poh faotionatersai obtuse, 0.1-0.15 
mm. long; pappus of 10-15 bristles, wh ionic taconipien uk Sime outer setae; achenes 2-nerved. 
