. Flora of southern British Columbia and Vancouver Island [microform] : with many references to Alaska and northern species. Botanique; Botanique; Botanique; Botany; Botany; Botany. )t if M: ir r. 294 COMPOSITyE 12. A. alpinus L. Atjout 1 dm. high, rough-pubescent throughout; I-avcs entire, the cauline linear-oblong, the basal mostly obtu?e and ternii- natingina short macro; heads solitary, about 3 cm. broad; bracts oblong in 2-3 series, acute, nearly 1 cm. long; rays violet; pappus double; Rockies. 13. A. Richardsonii Spreng. Slender, leafy to the bas?, branching, 1-5 dm. high, pubescent thro
. Flora of southern British Columbia and Vancouver Island [microform] : with many references to Alaska and northern species. Botanique; Botanique; Botanique; Botany; Botany; Botany. )t if M: ir r. 294 COMPOSITyE 12. A. alpinus L. Atjout 1 dm. high, rough-pubescent throughout; I-avcs entire, the cauline linear-oblong, the basal mostly obtu?e and ternii- natingina short macro; heads solitary, about 3 cm. broad; bracts oblong in 2-3 series, acute, nearly 1 cm. long; rays violet; pappus double; Rockies. 13. A. Richardsonii Spreng. Slender, leafy to the bas?, branching, 1-5 dm. high, pubescent throughout except on the upper surface of the leaves; leaves oblong-oblanceolate or the lower spatulate, about 1 cm. broad, sub- entire to serrate; heads few to several in corymbs, 2-3 cm. broad, bracts often purplish, obtuse or acute; pappus tawny. Trout Lake City; Golden; northward in the Rockies. 14. A. Lindleyana T. .4 G. Stem slightly pubescent above, 3-15 dm. high; leaves glabrous or nearly so, except on margins, coarsely or finely serrate, the basal broadly lanceolate, cordate or rounded at base, abruptly contract- ing to a winged petiole; those of the inflorescence lanceolate; panicle often large, heads cm. broad, involucre 6-8 mm. long, bracts subulate, glabrous or ciliolate, coriaceous except on green midrib and acute green apex, unequal, in several series; rays blue-violet, about 10 mm. long, disk-flowers usually reddish-purple, achenes glabrous. Common east of the Cascades; Arm- strong; Summerland, northward and eastward. Very closely allied are: A. Wilsonii Rydb. Peiiolcs and midribs and often stems pubescent with long, white hairs, rays 8-10 mm. long; and A. Butleri Rydb. Lower leaves lanceolate, tapering at base, achenes hispidulous-strigose; distinguished from A. MacCallae bv the numerous smaller heads with involucres 5-6 mm. high, and rays 8-10 mm. long. Both common in the Okanagan Valley; Armstrong. 15. A. MacCallae Rydb. Stems 3-6 dm. high, glabrous to the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
