][('/)(itic(r (tf XorfJi America. 125 



Trihc VI. JUXGEKMAXIE.*;. 



( Involiiero oliji^opliyllous A 



I Involucre polypliyllous F 



" Leaves of involucre conduplicate. />/j)l(>j)lii/lhiiii. 

 Ijivohu-re 2-leaved, the leaves concave, deeply bil()l)ed, 

 dissected ciliate. Blrpharozia. 

 li ^ Involucre 2-leaved, the leaves concave, entire. Pleii- 

 rozid. 



Leaves of involucre 2-many-dentate C 



i^ Leaves of invcducre undivided, entire. Aplozia. 



( Leaves of involucre like those of thenj. Ginnnocolca. 

 C ^ . ... 



i Leaves of involucre and of stem dissimilar D 



( Mouth of inner involucre cristate. Loijliorolea. 



^ \ . ■ 



I Mouth of inner involucre dentate E 



[ Inner involucre semiconnate with calyptra. HafiKUi- 

 E \ thus. 



I CaWptra free within the inner involucre. Jimt/rniKtiilft. 



Leaves of involucre dissected. Cephalozia. 



F \ Leaves of involucre articulate-ciliate. BJepliarostonui. 

 I Leaves of involucre palmate. AntlieJia. 



Trihc VII. ClIlLOSCYPHE.E. 



Tinner involucre shorter than the calyptra. C/iilosci/- 

 A J pItKs. 



I Inner involucre longer than the calyptra B 



\ Involucre oligophyllous. CoIeochih(. 



I Involucre polypliyllous C 



r Leaves of involucre squamiform. Lipitlozia. 

 C \ Leaves of involucre undivided, serrulate. PIei<roscJiis»ia. 

 I Leaves of involucre bilobed. Odontoschisma. 



