﻿390 ON THE BOTANY OF JAPAN. 



Sandwich Islands) and Hooker's Piliostegia ; and our Alleghany region, Decumaria. 

 Deiitzia is divided between Japan and the Himalayas (D. staminea of the latter diflfers 

 from D. crenata of the former in the calyx-teeth and some subsidiary characters), and 

 has an American analogue, but not a close one, in Fendlera. Philadelphus has one 

 Himalayo-Japanese species (doubtless not indigenous in Europe) ; the rest of the genus 

 is North American, partly western and partly eastern. 



Itea Chinensis has not yet been found in Japan, but Mr. Wright gathered a form of it 

 in the Loo Choo Islands. Hooker and Thomson found the same species in the eastern 

 Himalayas. The type of the genus, and the only American species, belongs to the 

 Atlantic United States. 



Crassulacece. Penthorum Chinense (not yet detected in Japan) is apparently identical 

 with the original P. sedoides, so abundant throughout the eastern part of North 

 America, but unknown in the western. Hooker and Thomson's Triactina, of the 

 Sikkim Himalayas, is only in a general way analogous to the American Diamorpha 

 of Nuttall. 



Hamamelidece. Mr. Wright met with nothing of this order in Japan, but found a 

 Distylium — apparently a variety of the Japanese species — in the Loo Choo Islands. 

 Hamamelis Japonica, which I possess from the Leyden herbarium, is very closely re- 

 lated indeed to the only other strict congener, the H. Virginica of Eastern America. 

 The species of the eastern borders of India, Dr. Hooker identifies with Brown's H. 

 Chinensis. Corylopsis of Japan and the eastern Himalayas is analogous to Fothergilla, 

 of the eastern borders of the United States. There is also a Liquidamhar in Japan. 

 The order is absent from the whole region west of the Mississippi, as well as from 

 Europe. 



UmheUifera;. The additions to the Japan Flora in this order are Bupleurum multi- 

 nerve of Siberia ; a new Angelica* of which fruiting specimens were obtained only at 

 Katonasima, one of the islands between Japan and the proper Loo Choo group ; and 

 the European Anthriscus sglvestris, as it must be called, on account of the oblong and 

 smooth fruit, rather than A. nemorosa, which is already recorded from the adjacent 

 continent. There is, indeed, a minute ring of haii's at the base of the fruit ; but this 

 likewise is to be found in specimens of A. sylvestris of Western Europe. The two 

 species are probably one. 



* Angelica Japoxica (sp. nov.): procera; foliis bipinnatisectis glabris, segmentis ovatis acuminatis 

 argute serratis ultimis saepe trilobis, superioribus sessilibus basique ala integerrima decurrente ; umbella caule- 

 que supeme tomentulosis ; involucellis polypliyllis, foliolis parvis scariosis lanceolatis acuminatis ; alis fructus 

 latiusculis jugisque subsuberosis ; vittis commisuralibus 4. Cape Soya (in flower). 



