D10ECIA DIANDRIA. 
667 
Foeminei. Amentum 
cylindraceum. Calyx 
squama. Corolla 0. 
Stylus 2-fidus. Capsula 
l-locularis; 2-valvis, 
Semina papposa. 
* Foliis integerri- 
mis aut obsolete serra- 
tis. 
Fertile jlorets. A- 
ments cylindrical. Ca- 
lyx a scale. Corolla 0. 
Style 2-cleft. Capsule 
1-celled, 2-valved. 
Seed crowned with a 
pappus. 
* Leaves entire or 
obscurely serrate. 
1. Muhlenbergiana. Willd. 
S. foliis lanceolatis, 
acutiusculis, subinte- 
gerrimis, pubescenti- 
canis,subtus rugoso-ve- 
nosis, margine revolu- 
tis; stipulis deciduis, 
lanceolatis; amends 
praecocibus diandris, 
squamis oblongis mar- 
gine villosis; germini- 
bus ovato-lanceolatis, 
sericeo-villosis longe 
pedicellatis; stylo bre- 
vi; stigmatibus bifidis. 
Leaves lanceolate, 
nearly acute and en- 
tire, pubescent, hoary, 
rugosely veined under- 
neath, with the mar- 
gins revolute; stipules 
deciduous lanceolate; 
aments appearing be- 
fore the leaves, dian- 
drous; scales oblong, 
the margins villous; 
germs ovate-lanceolate, 
cloathed with silken 
hairs, on long pedicels; 
style short; stigmas 
two-cleft. 
Sp. pi. 4. p. 692. Pursh, 2. p. 609. Nutt. 2. p. 231. 
S. Alpina? Walt. p. 243. 
A shrub 1 — 4 feet high, often decumbent with pubescent branches. 
Leaves lanceolate, nearly acute, entire, though sometimes furnished with 
1 or 2 obsolete teeth, hoary and pubescent on the upper surface, white and 
tomentose underneath. Stipules short, lanceolate, deciduous. Scales of 
