lo-i: THE PLANT WORLD. . 



(7) Reliantholdeae. Involucre scales imbricated, 



leafv. 

 b3. Receptacle chaffy or naked. Involiicral scales dry. 



(8) Anthemideae. Pappus none, or reduced. 



a2. Anthers basi-obtuse entire or sagitate. S. Africa 



and Australia, 

 (y) Arctotldeae. 

 a3. Anthers basally niucronate. Styles flat-truncate. 



(10) Calenduleae. Pappus none or woolly. 



a4. Anthers tailed. Style branches rounded apically. 

 Pappus often setose. 



(11) Inideae. Rayflowers ligulate ; of ten no ray. 



(12) Mutisieae. Flowers bilabiate, or ligulate in ray, 



bilabiate inwards at least the inner flowers. 

 C. Ligulifloral, all the flowers ligulate. Plants with milky 

 juic€. 



(13) Cichorieae. Pappus setose. Leaves never op])0- 



site. 



Of these tribes one is contined to South Africa, with a single 

 species in Australia. Two others are represented in Patagonia, 

 each by a single species, Vernonia nitidula Less, in Xorth Pata- 

 gonia, straggling from J3razil ; and Eriachaenium magellanicum 

 Sch. Bi])., of Calenduleae, an extraordinary little denizen of 

 Fuegian shores, having its corollas 4-merous and connate \\\\\\ 

 the achenes, the only species of its genus. 



The Eupatorieae are represented by nine species of the 

 genus Eupatoiluiii. which extend from Xorth America; by a few 

 species of the Brazilian genus Stevia, and by WiUughhaea 

 (]\likauia) the common climbing hemp of the L^nited States. 

 About half of these plants are shrubby, a character which very 

 frequently meets us in this region; which is correlated with the 

 xerophilous character of the country, rendering it the home of 

 the frutescent Compositfe, as South Africa is of the Arborescent 

 Compositfp. The climbing form, WiUughhaea scandens, repre- 

 sents a genus of 125 to 150 species, nearly all confined to Brazil, 

 except this one. 



