374 



ZONES AND REGIONS 



[Pt. Ill, Sect. I 



belong to the Paniceae (Paspalum, Panicum) and Andropogoneae (Andropogon, and 

 so forth). According to the number of species, Compositae preponderate, especially 

 Vernonieae (Vernonia) and Eupatorieae (Eupatorium), also Asteroideae, Inuloideae, 

 Helianthoideae, Helenioideae, Mutisieae. The Ligulatae are represented only by 

 a Hieracium. The Papilionaceae (60-70 species) are very numerous, whilst the 

 Caesalpiniaceae and Mimosaceae can show only a few species. Among strongly 

 represented families are Orchidaceae with 35-40 species, and Cyperaceae, Labiatae, 



J\. &JmAAJW: 



Fig. 204. Gomphrena jubata. Flora of the Brazilian campos. Natural size. 

 From the Flora Brasiliensis. 



Asclepiadaceae, Convolvulaceae, Euphorbiaceae, Rubiaceae with 20-25 species. The 

 Polygalaceae have 10-15 representatives; the Iridaceae, Apocynaceae, Melastoma- 

 ceae, Verbenaceae, Acanthaceae, Gentianaceae, Scrophulariaceae, Caesalpiniaceae, 

 Mimosaceae, Amarantaceae, Malvaceae have 5-10; the Malpighiaceae, Cucurbi- 

 taceae, Ampelidaceae, Umbelliferae, Polypodiaceae, Sterculiaceae have 3-4 species ; 

 the Oxalidaceae, Gesneraceae, Turneraceae, Passifloraceae, Bromeliaceae, Menisper- 

 maceae, Commelinaceae, Lobeliaceae, Anonaceae, Aristolochiaceae, Rhamnaceae, 



