THE CANAEIAN FLORA. 411 



wise confined to the tropical Andes of America, one species 

 only extending as far north as Mexico; the Canarian species, 

 which according to Webb is found on rocky shaded places 

 in Teneriife, from the sea-level to the wooded region, is most 

 closely allied to a Peruvian one. Glethra is a genus which ex- 

 tends from South Brazil to the Northern United States, and is 

 also found in Japan and the Malayan Archipelago. The Maca- 

 ronesian species most resembles a North American ; it is found 

 also in Madeira. Bystropogon is, like Bowlesia, an Andean genus, 

 extending from Peru to Cokunbia. All the Canarian species 

 belong to a different section from the Andean, and there is one 

 species of the same section in Madeira. Cedronella is a North 

 American and Mexican genus, and the Canarian species differs 

 from all its congeners in its trisect leaves ; it is also Madeiran. 



Of the Canarian Laurineae, Persea indica, also a native of 

 Madeira and the Azores, belongs to an American section of that 

 large genus. 



c. Tropical and South African types in the Canaries. Of 

 these the most noticeable are two forest trees, belonging to the 

 large tropical genus Mijrsi7ie. One of these, M. excelsa (He- 

 herdenia excelsa, Banks) is also found in Madeira ; the other, 

 M. canariensis, is confined to the island whose name it bears. 

 The tropical order Sapotaceoe, to which Argania belongs, has no 

 representative in the Canaries, but has one in the Sideroxylon 

 Mermulana of Madeira. 



The only almost exclusively South African genus ' in the 

 Canaries is a species of Lyperia, of which there are numerous 

 Cape of Good Hope species, and one doubtful one in the Somali 

 country (North-East Africa). The widely diffused Cape shrub, 

 Myrsine afrioana, is found iu the Azores and in Abyssinia, 

 but not ia the Canaries, Cape de Verdes, Madeira, or Marocco. 

 The two singular shrubs Phyllis and Plocama, consisting each 

 of a single species, of which the Phyllis is found also in Ma- 

 deira, are representatives of the Anthospermece, a very large and 

 conspicuously South African and Australian tribe of Euhiacece, 

 and of which the only Maroccan representative is Putoria, a Me- 

 diterranean genus of a single species, and which is not Canarian. 



' The Cape of Good Hope mountain plant, Melianthus comosnx, 

 found at the south end of Fuertaventura, must be assumed to have 

 been introduced by man into that island. 



