362 GEOGRAPHICAL BOTANY. 



to the temperate as well as the tropic zone, from the latter 

 of which representatives of the Palms, Pandaneae, Lau- 

 raceae, Ternstroemiaceae, &c., together with numerous 

 bamboos, are here in part diffused further towards the 

 north than in other meridians of the northern hemisphere. 

 5. The endemic character of the flora of Japan, which is 

 not connected, like Siberia, with that of Europe, having 

 but very few species in common with Europe. We have 

 not space, unfortunately, to enter more minutely upon 

 the consideration of the components of the catalogue of 

 the genera ; we shall, therefore, merely confine ourselves 

 to the mention of those families which are remarkable 

 from the number of species they contain, and to the enu- 

 meration of some of the characteristic botanical forms of 

 Japan. The predominating families are : Synantheraceae 

 (124), Graminaceae (90), Rosaceae (90), Leguminosae 

 (72), Liliaceae, in the extended sense (60, of these 25 are 

 Smilaceae), Cyperaceae (48), Labiatae (47), Ranunculaceae 

 (42), Umbelliferae (40), Amentaceae (38), Orchidacege (35, 

 principally of North American and European genera), 

 Ericaceae (36, of North American genera), Coniferae (30), 

 Urticaceae in the extended sense (about 30), Cruciferae (30). 

 Characteristic forms (excluding several tropical representa- 

 tives): Melastomas(4), Zanthoxyleae (6), Aurantiaceae (10), 

 Ternstrcemiaceae (19), an Opuntia, the source of which is, 

 however, doubtful, Magnoliaceae (10), one of the Proteaceae 

 (Helicia Z .) , Lauraceae (18,) Palmeae (4) , Musaceae (4 Musa] , 

 Scitamineae (7), the Haemadorous Aletris, Dioscoreae (5), 1 

 PhilJiydrum, Commelyneae (5), Eriocaulon (4), and Cycas (1) . 

 Zuccarini and v. Siebold have described some new 

 genera of Japanese plants in the memoirs of the Academy 

 of Bavaria (Plantamm quas in Japonia collegit de Siebold 

 genera nova. Ease. 1, 1. c. iii, pp. 719-49). List of these 

 genera : Pityrosperma (a Ranunculaceous plant with 3 

 species, one of which is Actcea Japonica Thunb.) ; 

 Pteridophyllum (connecting link between Hypecoum and 

 Fumaria) ; Eucapnos (Diclytra spedabilis D. C.) ; Tro- 

 chostigma> with 5 sp. (probably the type of a new family 



