332 COMPOSITAE 
41. Aster brachyactis Blake. Rayless Alkali Aster. Fig. 5566. 
Tripolium angustum Lindl. ex Hook. Fl. Bor. Amer. 2: 15. 1834. 
ater eugene 7 orr. . oe , Fl. N. Amer. 2: 162. 1841. Not Nees, 1818. 
itt. in Britt. & Brown, Ill. Fl. 3: ee pe 3808, 1898. 
Ane prathiectia aie ‘Conte U.S. Nat. Herbs 25: 564. 1 
Erect annual, simple or much branched above the as stems glabrous or occasionally hispidu- 
lous, 1-7 dm. hi gh. Leaves linear, entire, a ei wi the — erved, ha hed ciliate on the mar- 
i i nce vi h 
ous, 8-11 mm. high; phyllaries 2-3-seriate, inet: ar mat jineat to eet Ae acute, the outer 
green and shorter poe the usually scarious-margined nie phyllaries, glabrous or Dew pid ciliate 
on the margins, 5-7 mm. high; rays vestigial or absent ; pappus copious, surpassing the phyllaries. 
Moist, ae. saline au on lake and pond m margins, enldce Zone; British Columbia and Alberta south 
to northern Washington and to Nevada ei Wyoming east to ser ean and Missouri and adventive in other 
astern localities; also Siberia. Type locality: ‘‘Banks of the Sas katchawan.” Collected by Drummond. Aug. 
88. LEUCELENE Greene, Pittonia 3: 147. 1896. 
ufted herbaceous perennials with a slender, creeping, subterranean rootstock, and 
many leafy stems arising from partially subterranean, slender caudices. Leaves alternate, 
linear or subulate. Heads radiate, solitary at the e nds of the branches. Involucres turbi- 
nate, definitely graduate; phyllaries green, with a narrow scar ious margin. Ray-flowers 
agai the rays white, sometimes tinged with rose. Disk-flowers perfect, fertile, yellow. 
chenes subc my oe a somewhat age when mature, the pappus longer than the 
eee [Origi of name not kno 
A monotypic genus of southwestern pe 3 States and Mexico. 
1. Leucelene ericoides (Torr.) Greene. Rose-heath or White Aster. Fig. 5567. 
Inula ? ees Torr. Ann. Lyc. N.Y. 2: 212. Not Aster ericotdes L. 1753 
peng ppus ericoides var. ev sae oe , Mem. Amer. Acad. II. 4: 69. 1849. 
easiest throck, Bot. Gaz. 2: 70. 1877. =? Forsk. 1775. 
— erickeralite var, ietuts A. Gres, a Fl. N. Amer. 12: 198. 1884. 
Leucelene ericoide. eene, Pittonia 3: 148 96 
Ei lene arenosa Heller, Cat. N. Amer. Pl. 8. 1898 
Aster bellus Blake, Proc. Biol. Soc. Wash. 35: 1 as 
B r 
Aster leucelene Blake, oni’ Xe S. Nat. Herb. 25: 562. 1925. 
Aster hirtifolius Blake, 
Ste umerous from eS te woody caudices, 4-15 cm. high, slender, simple or erect- 
PBN oy eat. be ercone: strigose and more or less gla ndular. Lower leaves linear- -spatulate, 4— 
= ide, m base, l-nerv 
ra ola 
with greenish or subchartaceous center and rather broad scarious margin, cuspidate, strigose or 
wee id and more or less eile ciliate above, often purplish; rays 12-24, white, oe le turning 
eddishs or purplish, about 4 m long ; disk pal pale yellow; achenes up t 
sabes ent, the hairs at summit the longer, about 5-nerved ; pappus 4.5-5.5 mm. sie! of Peahequal, 
white, scabrous bristles 
Dry hills and ove: soil, eee aman and Bad pansies Zones; eastern face of the Sierra Neva da in Mo 
County ‘sal in the New York, Providence, and Clar me gay of San Bernardted County, California, cactwat rd 
James. April Sept Arizona to Kansas i aaa. pe Mexico. Type locality: ‘“‘On the Canadian?” Collected by 
ames ril—; 
no 
Variable pubese speci within our range exhibit the strigose nonglandular pubescence of f Ast 
bellus, wile Sere iron the | same cality " Fepenible Aster hirtifolius, which has hispid-ciliate as well as striguee 
pubescence intermixed with some glands, 
89. MACHAERANTHERA Nees, Gen. & Sp. Aster. 224. 1832. 
Annual, biennial, or perennial herbs or shrubs with a well-defined taproot and in some 
species a branching woody caudex. Leaves alternate, spinulose-tipped, Fepinulose-dentate, 
ose 0 
uate; phyllaries in several series, green abo 
coriaceous below. Ray-flowers pst, fertile, the rays oe of purple or white, rarely 
acking. Disk-flowers per ect. s turbinate to linear, oblong, several-nerved, be 
w ous; pappus of ‘unequal barbellate ttle 3 ae brownish. [Fro 
the Greek, meaning dagge r and flowe 
A genus of 26 species, natives of western iia States and Mexico. Type species, Aster tanacetifolia H.B.K. 
