247 
3. K. Dandelion Nutt. Perennial, and glaucescent with slender tuberiferous 
roots, and leafless scapes: leaves varying from spatulate-oblong to linear-lanceolate, 
entire or few-lobed: head about 12 mm. high: achenes more slender: pappus of 10 
to15 small oblong scales and 15 to 20 bristles. (Cynthia Dandelion DC).—Moist 
ground, extending from the Southern States into Texas. 
120. STEPHANOMERIA Nutt. 
Mostly smooth and glabrous annuals or perennials, with branching 
and often rigid or rush-like stems, small or merely scale-like leaves on 
the flowering branches, usually paniculate heads of 3 to 20 pink or rose- 
colored flowers, cylindrical or oblong involucre of several appressed 
and equal flat membranaceous bracts (and some short calyculate ones), 
5-angled or ribbed achenes (sometimes with intermediate ribs), and 
pappus a series of plumose bristles or rarely chaffy awns.—In ours the 
heads are 3 to 9 (mostly 5)-flowered. 
* Pappus plumose to base (except in No. 1), and not at all chaffy-dilated below. 
1. S. runcinata Nutt. A comparatively stout and rigid perennial, branching from 
thick roots, with spreading striate and rush-like branches which are small-leaved or 
nearly leafless above: heads mostly 8 to 10mm. high and seattered along the branches: 
lower leaves runcinate-pinnatifid, commonly lanceolate; upper linear or reduced to 
scales: pappus plumose only to near the base.—Extending from the northern plains 
to those of northwestern Texas. 
2. S$. minor Nutt. Like the last, but more slender, and with ascending branches 
bearing usually terminal and smaller heads: stem-leaves all slender, often filiform: 
pappus very plumose down to base.—‘‘Staked Plains” and westward, 
3. 8. Wrightii Gray. Slender, with single paniculate stems, and long slender 
subterranean shoots: stem-leaves mostly filiform and entire; those of the radical 
tuft linear to spatulate and laciniate-pinnatifid: heads nearly 12 mn. high, sparse, 
pedunculate, terminating slender branches: pappus long-plumose.—“ In pebbly bed 
of Howard’s Creek,” western Texas ( Wright). 
* * Pappus plumose above, naked below the middle, chaffy-dilated at base. 
4. 5. exigua Nutt. Paniculately branching (not rarely robust) stems with slen- 
der branches and branchlets: radical and lower stem-leaves pinnatifid or bipinnat- 
ifid, those of the branches mostly reduced to short scales: heads 6 to 10mm. high: 
pappus-bristles 9 to 18, their dilated bases commonly a little connate.—Western bor- 
der of Texas. 
121. PINAROPAPPUS Less. 
Deep-rooted perennial, with scapiform stems, solitary many-flowered 
campanulate heads of rose-tinged (or almost white) flowers, thinnish 
imbricated involucral bracts (the outer successively shorter), attenuate- 
linear chaff of the receptacle deciduous with the achenes, glabrous 
slender terete 10 to 15-ribbed achenes tapering from the callous base 
into a short slender beak, and sordid pappus of copious soft-capillary 
bristles. 
1. P. roseus Less. Glabrous and glaucescent: stems with a few minute bracts 
and 1-headed, or leafy below with a few naked branches, slender, rather rigid: leaves 
lanceolate and entire, and some pinnatifid: head over 12 mm. high, with conspicu- 
ous ligules.—High and rocky prairies of southern Texas. 
