BOTANICAL BEGIOFS. 681 



5. Region of Magnolice (Southern North- American) or Pursh's Region). 

 Mean temperature, 59-73 Fahr. (15-23 0.)- 



This region is included with the preceding in Grisebach's North -Ame- 

 rican Forest zone, but the vegetation is of a more tropical type, and ever- 

 green exogenous trees are more abundant. 



Character. A certain approximation to the tropical vegetation ; Can- 

 ness (Canna, Thalia), Palmae (Chamaerops), Yucca, Cycadese (Zamia), 

 Lauras, Ipomasa, Bignonia, Asclepias, Cacteae (Mammillaria, Opuntia), 

 Khexia, Passiflora, Cassia, Sapindus. 



Few Labiatae, Caryophylleae, Unibelliferae, Cichoraceae, Geranieae ; few 

 species of Aster or Solidago. 



Trees with broad shining leaves and large flowers. 



Genera. Magnolia, Liriodendron, Illicium, Asimina, Dionaea, Pavia, 

 Amorpha, Gleditschia, Baptisia, Petalostemon, Calycanthus, (Enothera, 

 Claytonia, Rudbeckia, Liatris, Silphium, Kalmia, Houstonia, Frasera, 

 Halesia, Dodecatheon. 



Predominant trees and shrubs. Magnolia grandiflora, M. glauca, &c., 

 Illicium floridanum, I. parviflorum, Liriodendron Tulipifera, Asimina, sp., 

 Pavia flava, P. macrostachya, &c., Amorpha fruticosa, &c., Gleditschia 

 triacanthos, &c., Robinia viscosa, Cassia Tora, C. marilandica, &c., Acacia 

 glandulosa, Calycanthus floridus, &c., Kalmia hirsuta, K. cuneata, Opuntia 

 vulgaris, O. fragilis, O. missouriensis, Halesia tetraptera, H. diptera, Lau- 

 rus Catesbyanus, L. caroliniensis, L. Benzoin, L. Sassafras, &c., Juglans 

 fraxinifolia, Carya aquatica, C. myristiciformis, Liquidambar styraciflua, 

 Carpinus americanus, Castanea americana, C. pumila, Platanus occiden- 

 talis, Quercus, 25 sp., Taxodium distichum, I 3 inus Taeda, P. palustris, 

 in the south Pinus australis covers large districts of sandy waste, Zamia 

 integrifolia, Yucca gloriosa, Y. aloifolia, &c., Chamasrops Hystrix, C. 

 Palmetto, C. serrulata. 



Cultivated plants. About the same as in the third region, with the ex- 

 ception of the Olive. Cultivation of Rice more extensive. In the southern 

 parts some tropical plants, especially Cotton and the Sugar-cane. 



6. Region of Camelliece and Celastrinece ( Chinese, Japanese, or 

 Kcempfer's Region). 



Mean temperature, 54-68 Fahr. (12-20 C.). 



This is the Chino- Japanese region of Grisebach. The climate is mode- 

 rate with abundant, equally diffused rainfall. The country has been so 

 long under cultivation, the forests destroyed, and much of the land altered 

 by irrigation, that the natural characteristics are greatly obliterated. . 



Genera. Magnolia, Nandina, Eurya, Camellia, Thea, Celastrus, Ilex, 

 Euonymus, Bumalda, Hovenia, Kerria, Spiraea, Gonocarpus, Lagerstroe- 

 mia, Aucuba, Bladhia, Eleagnus, Polygonum, Pollia. 



Predominant trees and shrubs. Rhapis flabelliformis, Pinus sinensis, 

 &c., Cunuinghaniia lanceolata, &c., Taxus nucifera, T. vertieillata, Salis- 

 "buria adiantifolia, Cryptomeria japonica, Cupres^us pendula, Juniperus 



