194 
FLORAL REGLONS 
Astragalus, and other Leguminosae, Plumbaginaceae, Rheum 
and other Polygonaceae, large Umbelliferae, &c. 
3. The Mediterranean and Orient Region includes Spain, 
southern France, Italy, Greece, Asia Minor, Persia, the 
Punjab, and Africa and Arabia north of 24 0 N., together 
with the Canaries, Azores, &c. It is very closely allied to 
the preceding region, and possesses a very similar vegetation 
( cf. Zone III. above). A few palms occur here, e.g. 
Chamaerops and the date-palm (Phoenix). There are many 
Cruciferae, Umbelliferae, Labiatae, Tamaricaceae, &c. : other 
characteristic forms are Myrhis communis (myrtle), Oka 
europaea (olive), Erica arbor ea ,• Quercus Llex , Pimis Pinea 
and other Conifers, Platanus orientalis (plane), Lanrus 
nobilis (bay), Pistacia Lentiscus (mastic), Arbutus unedo , 
Castanea vulgaris (chestnut), &c. Among genera with a 
large proportion of their species endemic in this region are 
Anthemis, Astragalus, Allium, Campanula, Centaurea, Cou 
sinia, Hypericum, Salvia, Silene, Verbascum, &c. 
4 The Eastern Asiatic Region includes the rest of 
China, with Corea and Japan, and possesses many endemic 
forms, e.g. the Conifers Cryptomeria, Ginkgo, Biota, &c., 
many Araliaceae, Lardizabalaceae, Menispermaceae, Magno- 
liaceae, Sapotaceae, &c. 
5. The Central North- American Region is the region 
lying between region 1 and the tropical regions of Mexico 
and the West Indies ; it includes the United States with the 
exception of a part of New England, Washington State and 
Oregon, and includes also a portion of Canada as far as the 
Saskatchewan. The climatal conditions resemble those of 
the Mediterranean region (cf. Zone III.). The flora includes 
many Compositae, Hydrophyllaceae, Polemoniaceae, Nycta- 
ginaceae, Chenopodiaceae, Polygonaceae (§ Eriogoneae), &c 
Sequoia and other Coniferae (q.v.) characterise the Califor- 
nian flora ; the drier States west of the Mississippi have a 
xerophytic flora — Cacti or Yuccas in some parts, Artemisias 
and other halophytes elsewhere (cf. above). Juglans, Carya, 
and other trees mark the Eastern States. 
II. T ropical Group. 6. The Tropical African 
Region includes all Africa and Arabia south of region 3, 
except the Cape-Colony region and the islands on the east 
side. Palms (notably Elaeis guineensis , Raphia, Borassus), 
