8YNGENESIA iF.QUAUS. 
275 
4. Tenuifolia. Nutt. 
L. caule gracili, gla 
bro; foliis inferioribus 
confertis, linearibus, 
basi parce pilosis, su- 
perioribus setaceis ; 
racemo longissimo; 
pedicellis squamosis ; 
involucri squamis ob- 
longis, mucronatis. 
Stem slender, gla- 
brous; lower leaves 
crowded, linear, a little 
hairy at base, the up- 
per setaceous ; raceme 
very long; pedicels 
leafy; scales of the in- 
volucrum oblong, mu- 
cronate. 
Nutt. 2. p. 131. 
L. Graminifolia. Willd. 3. p. 1636. ? 
Root tuberous. Stem two to four feet high, simple, glabrous ; lower leaves 
very narrow or linear ; glabrous, though a little hairy near the base, crowded, 
and frequently, as has been remarked by Mr. Nuttall, resembling tufts of the 
leaves of the Pinus palustris, upper leaves very small, setaceous, scatter- 
ed. Flowers crowded in a terminal raceme. Peduncle four to six lines 
long, furnished with two or three small scales. Involucrum, oblong, con- 
taining about five flowers. Scales oval, membranaceous along the margin. 
Corolla bright purple, sprinkled with glandular dots. Seeds furrowed, 
very hairy. Pappus feathered, not coloured. 
I have specimens from the western districts of Georgia, in which the 
lower scales of the involucrum are lanceolate, acute ; the interior all emar- 
ginate and sometimes lacerate ; in all other respects agreeing exactly with 
this species. I have always been accustomed to consider this plant as the 
L. Graminifolia, of Willdenow and Muhlenburg, though not of Walter and 
Pursh. 
Grows in dry pine barrens. 
Flowers, August — October. 
5. Cylindracea. Mich. 
L. gracilis, tota hir- 
sutula; foliis lineari- 
bus; spica rariflora; 
involucris subsessili- 
bus, cylindraceis, pau- 
cifloris; squamis apice 
rotundatis, abrupte mu- 
cronatis. 
Slender, somewhat 
hairy ; leaves linear; 
spike few flowered ; in- 
volucrum nearly ses- 
sile, cylindrical, few 
flowered ; the scales 
round at the summit, 
abruptly mucronate. 
