CARDUACEAE 
Stem usually pubescent all over: leaf-blades oblong.ovate, 
lanceolate, or di T MU pappus markedly exceeding .. 
rolucre at flov 18. S. Chapmanii. 
de 
Plant without long hor — 55 basal rosettes wanting or very incon- 
spicuous: leaves gradually Seer Sound blades not triple- ae ae Dellueia- d 
punctate, the ELM serrate E. [7 heads serrate, prominen ntly ribbe d. nd 
2 sub- or heads 
nch al : 
ES flattened. "longer than wide: ' achene us o indric, obconic, conspicuously 
ribbed, rounded at th apex 19. S. ulmifolia 
VIII. m 
lant without long horizontal stolons: leaf- TM triple-ribbed, the stem-leaves 
Strongly amplexicaule: inflorescence NR rather few widely spreading branches or 
the branches sometimes short and inflorescence contracted: heads not secund, small, 
4 mm. high, few-flowered: achene linear-cylindric, eu ed upward, grayish, hir- 
sutulous, strongly about 10- ribbed, the pappus rather sparse, as long or somewhat 
shorter 20. S. notabilis, 
IX. ARGUTAE 
Plant without long horizontal stolons: basal rosettes often very large 
Spicuous: leaves much reduced upward ; blades not triple- ribbed, not a o 
high, unilaterally racemose, on widely spreading branches or rarely “the br aches 
erect: stigmas flattened, longer than wide: achene D sometimes sparsely 
so or glabrate in age, ribbed, E at the apex. 
Inflorescence-branches glabrous: achene not blackish, 1.5 
mm. long: (leaves of bacal tufts with ovate- lanceolate 
or obovate-lanceolate blades 21. S. juncea. 
Inflorescence-branehes pipe cene achene 1.75-2.5 mm. lon 
Achene Dol blackish: basal tufts of leaves ocn poorly 
reloped, blades lanceolate, oblong-oval, ovate- 
Tacos. oval-obovate or ovate, singly serrate or 
crenate-serrate. 
Stem glabrous, beneath the inflorescence. 
Involucre 2-4 mm. high. 
Le af- “blades T ous below, glabrous or 
ular-hairy above, thickish, m 
22. S. Boottii. 
Leaf-blades pustular-hairy on both sides, espe- 
on the veins, thin, shallowly- Serrat 23. S. strigosa. 
Involu ee 5 $ mm. high. 24. S.4 POUR HEUS 
Bee ns ongly and loses short-pubescent: leaf-blades 
rous (or strigillose above 25. S. brachyphylla. 
dicio. blackish, 2.25 mm. long: basal tufts of Ad Au 
ngly dev eloped. their blades ovate, mo 
i pie serrate, 
Leaf- id much lighter-green beneath Hun above, 
iin ; ature achene E pappus 3-4 mm 
one. Te UR oe . high, 2-2.5 n thick ; 
er bracts linea Spied d 26. S. arguta. 
Leaf blaaes EU chee: -green beneath than above, 
firm achen ut m pappus 2.5-3.5 mm 
lo ong: old cies 4-6 high, 2.5-4 mm. thick ; 
inner bracts OBIOnE obovate. 27. S. Harrisii. 
dac. 
Lond 
. ULIGINOSAE 
lant without long Horizontél stolons: basal rosettes very large and con- 
spicuous: leaves much reduced upwards; blades not triple-ribbed, no t pellucid- 
punctate, not aah canescent, thin or mode rately fleshy, prominently and 
eined beneath, the larger serrate or crenate and Jong-petioled : A s strongly 
clasping at the base: heads small or medium-siz h, unilaterally 
: ig i 
racemose on widely spreading branches or sometimes the lj noches erect : sti 
n DT than wide: achene pubescent, sometimes sparsely so, ribbed, truncate 
SUEED of the stem terete or essentially Eu. a a bades 
t very rough (retrorsely scabrous) 
Leaf-blades serrate with conspicuous calius. "Ded teeth. 
: Involucre narrowly campanula ae a. and inflores- 
-br 
cence-branches usually more or less hairy, 28. S. uniligulata, 
Involucre broadly Caa a pedicels and inflores- 
cence-branches usually glabro 29. S. austrina: 
Leaf-blades crenate-serrate, 30. S. flavovirens. 
