— 636 — 



marginatum: receptaculi convexi aut conici modo concavi paleae scariosae mu- 

 tlcae vel arista rigida terminatae. Ord. nat. vt in CiiiiYSANTHEMo. 



463. ACHiLLEA L. Calathi saepius parvi multiflori heterogami in co- 

 rymbo composito: floscuU radii foeminei raro difFormes unica vice majuscuH, 

 Hngulis 2-3-dentatis vel integris, involucrum parvum, superantibus, disci her- 

 maphroditi tubulosi Hmbo 5-fido: involucrum ovoideum vel oblongum, squamis 

 ovatis saepe margine scariosis pluriseriatim-imbricatis: achenia parva oblonga 

 compressa striata apice convexa nuda vel breviter margiuata: receptacuH plani 

 vel elongati paleae oblongae scariosae hyaHnae apice saepe lacerae flosculos 

 subaequantes. Ord. nat. ut in Chrvsanthemo. 



464. ASTERISCUS YaUl. Calathi majuscuH multiflori heterogami ter- 

 minales axiflaresque : floscuH radii foeminei 1-2-seriales , HnguHs Hnearibus 

 apice 2-3-dentatis, floscuH disci hermaphroditi tubulosi Hmbo 3-fido .• involu- 

 crum duplex , externum squamis foHaceis basi cartilagineis patentibus radio 

 longioribus , internum 2-seriale squamis cartilagineis apice breviter foHaceis 

 arcte imbricatis radio brevioribus: synantherium longe caudatum: achenia dif- 

 formia, radiaHa majora triquetra nunc acheniis disci minoribus simiHa, nunc 

 compressa marginil)us alatis , nervo carinali subobliterato , omnia marginulo 

 brevi lacinulato coronala: receptacuH paleae carinatae cartilagineae persistentes. 



COM POSITAE-AsT E nOI DE AE DC. 



OrD. III. PoLYGAMIA-FlWSTlUNEA. 

 COM POSITAE-Cy N AREAE DC. 



465. CENTAUREA L. Calathi saepe grandes pauci-multiflori heterogami 

 ramis ut plurimum terminales : flosculi tubulosi limbo 5-fido , radiales neutri 

 frequenter grandiores radiantes, disci hermaphroditi: involucrum ovoideum aut 

 ventricosum, squamis inaequalibus pluriseriatim imbricatis apice modo nudis, 

 modo lamina varimode scariosa vel spinosa terminatis: achenia oblonga plus 

 minusque compressa: pappus multisetus, setis simplicibus scabris vel plumosis 

 pluriseriatis inaequalibus, quandoque nullus: receptaculi plani paleae setaceae 

 numerosae liberae vel in fasciculos coadunatae. 



466. GALACTITES Moench. Calathi mediocres multiflori helerogami pa- 

 niculati: floscuH tubulosi limbo S-fuIo, radiales neutri majores radiantes, disci 

 hermaphroditi = involucrum campaniforme squamis lanceolatis apice spinoso- 



