146 TREE SPECIES. SUCCULENT SPECIES, [chap. 



S. araneosus and 5. tamoides like a smilax or tamus 

 (Yam) ; 5. tropceolifolius like a tropseolum. 



Among the species inhabiting hot, dry regions are 

 some with swollen fleshy leaves, such as 5. haworthii 

 from the Cape of Good Hope, and 5. pteroneura, 

 from Mogador. Senecio rosmarinif alius, of the Cape, 

 is curiously like a Rosemary or Lavender. Lastly, 

 some species may almost be called small trees, such 



Fig. 95. — Senecio campestris. 



as S. populif alius, with leaves like a Poplar ; and 

 5. antygdaloides, like an Almond. 



I might mention, if space permitted, many other 

 species which, as their names denote, closely resemble 

 forms belonging to other groups — such, for instance, 

 as Senecio lobelioides, erysimoides, bupleurioides, 

 verbascifolius, juniperinus, ilicifolius, acanthifolius, 

 linifolius, platanifolius, graminifohus, verbenefolius, 



