FLORA OF BRAZIL. 465 



linearibus obtusis, 5 lin. longis. Corollse violaceee involucro 

 subaequales. Achtenia acute 5-angustata, ad angulos piloso- 

 scabrida. Pappus uniserialis, setosus, setis scabridis, stra- 

 mineis, corollam subeequantibus. 



Distinguished from the preceding species by its smaller 

 and differently shaped leaves, narrower involucral scales, and 

 more branched habit. 



4841. Ch. leucocephala ; herbacea erecta ramosa tota capi- 



tulis exceptis villoso-tomentosa, ramis oppositis con- 



fertis teretibus striatis foliosis, foliis brevissime petiolatis 



oblongis vel ovato-oblongis utrinque obtusis crenatis tri- 



plinerviis creberrime resinoso-punctatis, capitulis ad apices 



ramulorum 1-3 in paniculam magnam dispositis 25-fioris, 



involucri oblongi squamis multiserialibus imbricatis spathu- 



lato-oblongis obtusis striatis glaberrimis. 



Hab. Dry Campos between the Rio Claro and San Romao, 



Province of Minas Geraes, Brazil. Fl. in June. 



Herba perennis, bipedalis. Folia 15-24-lin. longa, 8-12- 



hn. lata, basi interdum subcordata, grosse reticulata. Invo- 



lucrum stramineum, 7-lin. longum. Receptaculum paleaceum, 



paleis stellato-radiatis stipitatis. Corollse violaceae involucro 



breviores. Achaenia acute 5-angulata, ad angulos piloso- 



hispida. Pappus uniserialis, setis scabridis, stramineis. 



This species is distinguished from the preceding by its 

 v ery remote habit, differently shaped leaves, longer and nar- 

 rower capitula, straw-coloured, not violaceous, involucral 

 scales, and from all the species of the genus by the very 

 remarkable scales of the receptacle. 



4860. Ch. alternifolia; caule herbaceo erecto tereti striato 

 villoso-tomentoso simplici, foliis alternis petiolatis oblongo- 

 ellipticis obtusis basi acutis crenato-dentatis coriaceis 

 supra pilosiusculis subtus piloso-tomentosis triplinerviis, 

 corymbis terminalibus, capitulis ad apices ramulorum con- 

 fertis sessilibus 12-floris, involucri oblongi squamis 3-seria- 

 tis laxe imbricatis oblongis acutis striatis subciliatis, exte- 

 noribus brevioribus ad apicem pilosis. 



V «L. V. M M 



