Echmops. GOMPOsiT^. 423 



§ i. Exinvolucratae. — Capitnla basi nuda (Except. Ptosi- 

 mopappi et Centaurem sp. paiicae). 



• Pappus conformis, id est conslans seti.s vel paleis pluriseriatis ab 

 externis ad intimas sensim elongatis. 



+ Pappus persistens (Except. Serraiuhp. sp. nonnullae). 



Serratula, Rhaponticum, Phceopappus, ^Etheopappus, Hymenocephalus, 

 Amberboa. 



A- -\- Pappi setae vel in annulum concretse vel segregatim deciduae. 

 Leuzea, PsepheUus, Stizolophus, Aa-optilon, Ptosimopappics, Plagiobasis. 



* * Pappus biformis, externi setae vel palese pluriseriatse ab externis ad 

 intimas e]ongata% interni uniseriati paleai vel et Sccpissime abbre- 

 viata; conniventes, vei et rarius elongalai pappum externum supe- 

 rar.tes. 



-|- Pappus persistens. 



Centaurea, Chartolepis, Zoegea, Crupina, Mia-olonchus, Callicephalus. 



-{- + Pappus deciduus. 

 .^gialophila. 



§ 2. Involucratae. — Capitula bracteis foliaceis vel spinosis 

 involucrala. 



Melanoloma, Cnicus, Carthamus, Carduncellus. 



SuBTR, I. ECHINOPSIDEiE Less. — Capitula uniflora in glome- 

 rulos globosos dense congesta. Pappus setis paieaceis 

 uniseriatis plus minus concretis vel liberis in corouam 

 approximatis constans. 



ECHmOPS (L. G«n. 999. — Trautv. Dissert. 1833.— Bunge 

 Syn. in Uull. Acad. Pelrop. VI, p. 390.) 



Capitula numerosa in glomerulum globosum dense aggregata in 

 receptaculo communi sessilia., involucro communi reflexo capitulis 

 «bscondito phyllis paucis vel setis constanti sulTulta. Involucrum 

 partiale capituli phyllis pluriseriatis constans, exterioribus setitbrmi- 

 bus pinnatispenicillum constituenlibus,ca3terisab extimis a basi tenui 

 «aepius pinnalo-ciliata minute spatl-ulatis ad interiora subulato vel 

 aceroso-attenuata sensim elongatis, inlimisliberis vel interse coalitis. 

 Corolla regularis tubo tenui.limbo cylindraceo quinquepartito. Anthe- 



