of the Class Composita. 251 



choracece. Its entire capital um may be compared with that of 

 Gnaphalium, and its soft stipitate pappus with that of Lactuca, 

 thus showing that the genus is to be regarded as constituting an 

 osculant group between the three families. The modification of 

 the apex of the achenium proves that the stipitate pappus is not 

 a character of generic importance in Leria. 



Trib. 6. Diazeuxejj. Receptaculum subpaleatum. Flosculi 

 (raro dioici !) disci hermaphroditi, tubulosi, 5-clentati ; radii 

 ligulati, foeminei, nunc bilabiati. Antherarum setis nudis. 

 Flautce scepe fruticosa, capitulis plerumque solitaries, magnis, 

 pedunculatis. 



Diazeuxis. 



Atractylidis sp., L. 



Onoseridis sp., Willd. 



Flores dioici ! Receptacuhwi alveolatum. 



Flores dioici ! Involucrum sphseroideum, multiplici serie imbri- 

 catum : squamis innumeris, lanceolatis, acuminatis, coria- 

 ceis, rigidis, adpressis. Receptacuhwi alveolatum : alveolis 

 margine laciniato-fimbriatis. Flosculi masculi creberrimi, 

 cylindrico-tubulati, 5-nervii, limbo 5-fidi : laciniis lineari- 

 bus, obtusis, canaliculatis, recurvato-patulis, nervis pro- 

 minentibus apice confluentibus, hinc margine apiceque 

 incrassatis : ligulis plurimis, accessoriis, patulis, substantia 

 coriaceis, obtuse trilobis, 6-nerviis (nervis per paria lacini- 

 arum discum occupantibus, paribus intermediis magis ap- 

 proximatis) nunc neutris unilabiatis, nunc pistillo (an sterili ?) 

 staminum rudimentis, labioque interiore simplici, angustis- 

 simo, canaliculato, obtuso, binervio, coriaceo, recurvato, 

 basi dilatato auctis ; fceminei copiosissimi, filiformes, 5-ner- 

 vii, coriacei, basi callosa, difformes ; centrales limbo oequali, 



5-partito ; 



