Centaurea. coMPOsiXiE. 619 



spinescentera abeuntia.Pappus plumosus,qua nota acsete- 

 ris sectionibus distinguitur; facie et invoiucro affinis 

 generi Stizolopho slructura pappi caeterum alieno. 



C Balsamita. 



Sect. X. Crocodylium Vaill. ex parte. — Annuae. Capitula majus- 

 cula vel niediocria. Phylla late et teiiere hyalino-margi- 

 nataintegra vel pectinato-ciliata in spiiiam longam tenuem 

 abeunlia. Achenia villosa. Pappi series interna late 

 paleacea. 



C. Crocodylium, heterocarpa. 



Sect. XI. MiCROLOFHUs. — Microlophiis el Piptoceras Cass. — 

 Perennes vel biennes. Capitula magnitudine varia. Invo- 

 lucri phylla coriacea non membranaceo-marginata appeii- 

 dice minima ssepius caduca mucroniformi simplici inter- 

 dum breviler palmatipartita superala. Achenia papposa. 

 — Herbse flaviflorae foliis decurrentibus. 



C. monacantha, Babylonica, myriocephala, Behen, ■polypodifolia, Szovitsiana, 

 pseudobehen. 



Sect. XII. Tetramorph^a. — Gen. Tetramorphcea d.g. — Annua. 

 Capitula ininuta bracteis ciliatis involucrata. Phylla inte- 

 gra non membranaceo-marginata in spinam integram 

 abeuntia. Achenia minima pauciseta. — Sectio ab affini 

 Calcitrapd phyllis integris discrepans. 



C. phyllocephala. 



Sect. XIII. Mesocentron. — Verutina et Mesocentron ex parte 

 D.c. — Annuse vel biennes. Capitula mediocria. Phylla in 

 spinam ssepius longam et validam spinulis lateraliter pin- 

 natam abeuntia. Herbae foliis superioribus decurrentibus 

 vel basi auriculatis. 



C. Verutum, solstitialis, pyracantha, Idcea, carneola, Melitensis, Sinaica, 

 JEffyptiaca, Postii. 



Sect. XIV. Calcitrapa Cass. — Biennes. Involucri phylla iuter- 

 media producta in spinam longani tantum basi spinulis 

 auctam, achenia papposa vel calva. Folia caulina non 

 decurrentia rarius basi auriculata. 



C. procurrens, CUicica, Calcitrapa, Pamphylica, Alexandrina, Iberica, pal- 

 lescens, araneosa. 



