ANNOTATIONS AND ADDITIONS. 197 



E. tubar, Symplocus alstonia, some species of Myrica, and 

 the beautiful Myrtus microphylla which we have figured in 

 the Plantes equinoxiales, T. i. p. 21, PL iv. We found it 

 growing on mica slate, and extending to an elevation of 

 more than ten thousand English feet, on the Paramo de 

 Saraguru, near -Vinayacu and Alto de Pulla, which is 

 adorned with so many lovely alpine flowering plants. 

 Myrtus myrsinoides even extends in the Paramo de Gua* 

 mani up to 10500 (11190 English) feet. Of the 40 

 species of the Genus Myrtus which we collected in the 

 equinoctial zone, and of which 37 were undescribed, much 

 the greater part belonged, however, to the plains and lower 

 mountains. From the mild tropical mountain climate of 

 Mexico we brought back only a single species (Myrtus 

 xalapensis) ; but the Tierra templada, towards the Volcano 

 of Orizaba, must no doubt contain several more. We 

 found M. maritima near Acapulco, quite on the sea-coast 

 of the Pacific. 



The Escallonias, among which E. myrtilloides, E. tubar, 

 and E. floribunda, are the ornament of the Paramos, and 

 by their physiognomy remind the beholder strongly of 

 the myrtle-form, once constituted, in combination with 

 the European and South American Alp-roses (Rhododen- 

 dron and Befaria), and with Clethra, Andromeda, and 

 Gaylussaccia buxifolia, the family of Ericese. Robert 

 Brown (see the Appendix to ErankhVs Narrative of a 

 Journey to the Shores of the Polar Sea, 1823, p. 765), 

 has raised them to the rank of a separate family, which 

 Kunth places between Philadelphese and Hamamelidese. 



