516 
GEOGRAPHY. 
BOOK V. 
Characteristic orders : Bromeliacese, Piperaceae, Passifloreae, 
Cacteae. Numerous tropical orders : Euphorbiaceae, Convolvulaceae, 
Apocyneae, Rubiaceae. Tropical orders which are here less fre- 
quent than in other countries within the tropics: Fihces, Scitamineae, 
Orchideae, Myrtaceae, Leguminosae, Terebinthaceae, Aurantiaceae, 
TiHaceae, Malvaceae. Extra-tropical orders appear or becontie more 
numerous: Labiatae, Ericineae, Campanulaceae, Compositae, Um- 
belliferae, Crassulaceae, Rosaceae, Caryophylleae, Cruciferae, Ranun- 
culaceae. 
Characteristic genera: Phytelephas, Kunthia, Galactodendrum, 
Podopterus, Salpianthus, Russellia, Lagascea, Gronovia, Inga, 
Thouinia, Lacepedia, Theobroma, Guazuma. 
Predominating tree-like plants : Cyathea speciosa, villosa ; Menis- 
cium arborescens, Agave americana, Yucca acaulis; Cocos nuci- 
fera, butyracea; Mauritia flexuosa, Martinezia caryotifolia, Oreo- 
doxa montana, Kunthia montana, Chamaerops Mocini; Corypha 
Miraguana, Pumos, tectorum, etc. ; Liquidambar styraciflua, 
Cecropia peltata, Galactodendron utile, Rhopala obovata, Avicen- 
nia tomentosa, Ehretia ternifblia, Cordia dentata, Cereus sp., Melo- 
cactus sp.,Opuntia sp., Pereskiaand Mammillaria sp., Lecythis ellip- 
tica etc., Bertholletia excelsa, Melastomae arborescentes ; Bau- 
hinia splendens, suaveolens, etc. ; Haematoxylum campechianum, 
Caesalpinia cassioides etc. ; Acacia cornigera, fcetida, etc. ; Hyme- 
naea Courbaril etc. ; Inga insignis, Plumboldtiana, etc. ; Mimosa 
sp., Swietenia Mahagoni, Bonplandia trifoliata. 
Cultivated plants: Zea Mais, Sorghum vulgare, lanipha Manihot, 
Dioscorea alata. Convolvulus Batatas. 
Musa paradisiaca, Mangifera indica ; Annona muricata, squa- 
mosa; Psidium pomiferum and pyriferum, Cocos nucifera, Carica 
Papaya, Persea gratissima, Bromelia Ananas, Anacardium occiden- 
tale, Tamarindus indica. Citrus sp., Passiflora quadrangularis, Vitis 
vinifera, Opuntia vulgaris, lambosa vulgaris, Theobroma Cacao, 
Vanilla aromatica, CofFea arabica ; Saccharum officinarum, vio- 
laceum; Lycopersicum Humboldtii, Capsicum frutescens, annuum; 
Cajanus flavus, Arachis hypogaea, Opuntia coccinellifera, Nicotiana 
sp., Gossypium barbadense etc. 
XVI. Kingdom of the Mexican Highlands. 
(^Bonpland' s Kingdom.) 
Mexico, elevated more than 5000 feet. Mean Temperature^ 
65-75° to 79-25°. 
Character. — Tropical forms disappear or decrease : Filices 
arboreae, Palmae, Piperaceae, Euphorbiaceae, Melastomaceae, Passi- 
