NEW PLANTS FROM NORTH DAKOTA 235 
he plant is common in high, dry, sunny prairie soil in 
central North Dakota, and its flowering time is August-Sep- 
tember. It is one of the few high prairie plants that success- 
rd resisted the drought of 1910. The type was collected 
eeds, N. Dakota. 
dec it delightfully appropriate to name this strikingly 
beautiful plant in honor of Dr. Edw. L. Greene, the singularly 
conspicuous landmark in modern botanical history, princeps 
ille rei herbariae principum. 
Gutierrezia fulva sp. nov. 
Caules 15-18 em. alti, in caudice perenni, ligneo aliquantu- 
lum dispersi, fere glabri, angulati. Folia linearia vel lineari- 
lanceolata, in caulibus E 3 cm. s onga, 1-2 mm. lata, in ramis 0.5 
—1.5 cm.longa, filiform m. lata, colore pallide et obscure 
viridi. Inflorescentia astas ar planum vel rotunda- 
tum, formans. Involucra 5-6 mm. longa, turbinata, lateralia 
longe-pedunculata et saepe simplicia, media in glomerulis 2-4 
capitulorum sessilia vel subsessilia. Bracteae involucri in 3-4 
seriebus dispositae, ovatae, viridibus, obtusis apicibus pellu- 
cidae. Flores fulvi, discoidei plerumque 5, radiati 6-8. 
tem 5-18 cm. high, loosely tufted on a ligneous persistent 
caudex, nearly glabrous, angled. Leaves sel or linear Sapa 
ceolate, 1-3 cm. long, 1-2 mm. wide on the stem 5—1. 
long, filiform—1 mm. wide on the branches, of a rather par 
‘dark green color. cnt in an open, flat—or r ound- 
topped cyme. Heads 5-6 mm. long, turbinate, the portphoral 
A : long-peduncled and often inre the central sessile or nearly - 
Y so, in glomerulis of 2-4. Bracts of the involucre in 3 or 4 
X series, ovate, hyaline with green, "epe tips. Flowers dor 
yellow Disk- flowers usually 5, rays 
The species belongs to the same grou p as G. diversifolia 
. Greene, which has rays 5 or 6, disk-flowers 8 or 10, G. sco- 
Rydb., which is larger in all its parts, fai lanceolate 
outer bracts and oblong- turbinate involucres, and G. Greenei, 
which is densely tufted and has a strikingly different color of 
its foliage, contracted inflorescence and rays and disk-flowers 
numerically: calde 
$ The plan on dry, sunny hills or hillsides and was 
collected « on gai 28, 1908, by the writer at Des Lacs, Ward 
nty. 
= Achillea lanulosa Nutt. var. arachnoidea, var. nov. 
—.. Caulis laxe arachnoideus. Folia caulina 15-28, stricte vel 
laxe sericeo-pubescentia 
E Siem loosely arachnoid, stem leaves 15-28, appressedly or 
Pe. loosely silky pubesce 
ps and ern Turtle Mountains, N. Dak., July, 1910. 
Ld 
