BOTANICAL EEGIONS. 



Genera. Lileea, Cervantesia, Oreocallis, Lachnostoma, Gaylussaccia, 

 Stevia, Flaveria, Tagetes, Espeletia, Cinchona, Guilleminia, Loasa, Ka- 

 geneckia, Negretia, Amicia, Perottetia, Dulongea, Laplacea, Freziera, 

 Abatia, Monnina. 



Predominant trees and shrubs. Oreodoxa frigida, Ceroxylon andicola, 

 Podocarpus taxifolia, Salix Humboldtiana, Quercus Humboldtiana, Q. 

 almaguerensis, Q. tolimensis, Ficus velutina, Rhopala cordifolia, Oreo- 

 callis grandiflora, Persea laevigata, P. Mutisii, P. sericea, Ocotea mollis, 

 O. sericea, Vaccinium caracasanura, Andromeda bracamorensis, Befaria 



Slauca, B. ledifolia, Cinchona Condaminea, C. cordifolia, C. oblongifolia, 

 . laucifolia, &c., Weinmannia elliptica, W. Balbisiana, &c., Osteomeles 

 glabrata, Rubus floribundus, Ilex bumelioides, I. myticoides, Clusia el- 

 liptica. 



Cultivated plants. The tropical cultivated plants mentioned under 15 

 almost entirely disappear ; Maize and Coffee, however, are cultivated in 

 this region ; after these come the European cereals and fruits, Potatoes, 

 and Chenopodium Quinoa. (Humboldt's publications afford the best 

 general view of the vegetation of this district.) 



18. Region of Escallonice and Calceolaria (Ruiz and Pavon's Region). 

 Altitude, 9000-18,000 feet. Mean temperature, 59-34 Fahr. (15-1 C.). 



Character. This is nearly the same as the Chilian transition region of 

 Grisebach, intermediate between the Antarctic region to the south and 

 the Andean region to the north ; eastward are the Pampas. The general 

 climate is like that of the Mediterranean, but with longer periods of 

 drought. The tropical forms have disappeared almost entirely, but the 

 following genera still occur : Tillandsia, Oncidium, Peperomia, Rhexia, 

 Passifiora. The forms which characterize the colder temperate and the 

 polar zones become more common: Lichens, Musci, Carex, Luzula, 

 Alnus, Rumex, Plantago, Gentiana, Swertia, Yaccinium, Campanula, Ca- 

 calia, Senecio, Umbelliferee, Valeriana, Saxifraga, Ribes, Rubus, Alche- 

 milla, Caryophyllaceae (Sagina, Arenaria, Cerastium, Stellaria), Cruciferae 

 (Draba, Arabis). 



Predominant Orders. Compositse, Graminaceee, Ericaceae. No large 

 trees. 



Characteristic genera. Desyeuxia, Tigridia, Gardoquia, Calceolaria, 

 Thibaudia, Lysipoma, Barnadesia, Homanthis, Chuquiruga, Culcitium, 

 Wernera, Dumerillia, Escallonia, Pectophytum, Klaprothia, Polylepis. 



Predominant shrubs. Alnus ferruginea, A. acuminata, Vaccinium acu- 

 minatum, V. empetrifolium, V. floribundum, &c., Thibaudia rupestris, T. 

 floribunda, T. longifolia, T. strobilifera, Befaria grandiflora, B. coarctata, 

 Ribes frigidum, Escallonia myrtilloides, E. tortuosa, E. berberidifolia, 

 Ilex scopularum, Drymis granatensis. 



(Gay's ' Flora of Chili,' and Miers and Weddell's publications on the 

 flora of Chili, Bolivia, &c., may be consulted for further details.) 



19. West-Indian (or Siuartz's) Region. 

 Mean temperature, 59-79 Fahr. (15-26 C.). 



Character. Tropical heat with two rainy seasons are very favourable 

 to the growth of plants, but the original character of the flora has been 



