﻿ON THE BOTANY OF JAPAN. 389 



And the name is the more appropriately conferred upon the present very striking 

 plant, since Captain Kodgers was himself one of its discoverers.* 



The plant which in Perry's Expedition I had called Chrysosplenium oppositifolium, is 

 now, by better specimens, shown to be C. Kamtschaticmn. The seeds are narrowly 

 oblong, smooth and glabrous, and more than twice the size of those of C. ojjpositifoUum, 

 which are short-ovoid and minutely roughened under a lens, and the floral leaves are 

 more toothed. The seeds of C. ghclioiiKcfolmm, Nutt. (which is very near C Nepalcnse), 

 are smooth and globular. Those of C. Americanum are oval and hispid. An inter- 

 esting rediscovery is that of C ovalifolium of M. Bieb. and of Ledebour, 1830, — not 

 before known in fruit, but which I now can identify with Chamisso's C. macrocarpum, 

 whose more appropriate name was published in 1831, and also with Trautvetter's C. 

 Sedakowii. A new character is appended, drawn from Mr. Wright's specimens, gath- 

 ered in mountain rivulets near Hakodadi.f 



The genus Hydrangea is divided between Japan, with the Himalayas and the moun- 

 tains of Java, on the one hand, and the Alleghany region of the United States on the 

 other. In addition, Japan has the allied genera Cardiandra, Schizophragma, and Platy- 

 crater; the Himalayas, &c., Adamia (of which Broussaissia is the counterpart in the 



* RODGEESIA, Nov, Gen. 



Calyx tubo brevissimo turbinate basi ovarii adnato, limbo petaloideo 5-partito, lobis asstivatione valvatis 

 ovatis post anthesin patentissimis persistentibus. Corolla nulla. Stamina 10, perigyna, calycis lobis oppo- 

 sita et alterna, iisdem mox longiora: filamenta subulata persistentia : antherte innatas, subdidymaj, longitu- 

 dinaliter deliiscentes. Ovarium 2 - 3-loculare, 2 - 3-styla : styli subulati, stigmatibus crassis subcapitatis ter- 

 minati. Ovula plurima, in placenta axili crassa rctrorsuni imbricata, pendentia. Semina immatura scobiformia, 

 testa laxa utrinque producta. — Herba insignis, 3 - 4-pedalis, caule valido e rhizomate percrasso horizontal! 

 erecto 3 - 5-foliato ; foliis magnis alternis (radicalibus maximis longe petiolatis, limbo nunc bipedali !) palmatim 

 peltatimve 5-sectis, summis trisectis vel trilobatis, foliolis sessilibus cuneatis apice inciso-lobatis margine undique 

 argute serratis, petiolo basi scarioso-dilatato seu adnatim stipulate ; cymis scorpioideis plurimis in paniculam 

 thyrsoideam nudam amplissimam collectis ; floribus subsessilibus subsecundis ebracteatis luteo-albis. 



EoDGERSiA PODOPHTLLA. Hakodadi, etc. — Genus ab Astilhi plane diversum ; calyce rotato-patente 

 subampliato, a3stivatione valvato, seminibus descendentibus, necnon habitu, floribus ut videtur hermapbroditis, 

 intlorescentia cymosa, bracteis bracteolisque nuUis, ovariis usque ad apicem coalitis: ab Oresitrophi, inflo- 

 rescentia, ovario e carpellis alte connatis bOoculari, ovulis seminibusque penduHs. 



t Chrtsospleniuji ovalifolium (M. Bieb. ex Ledeb.) : fere glabrum ; caule basi repente nude supeme 

 foliato (spitliamoeo et ultra) ; foliis aut oppositis aut alternis obovato-orbiculatis cuneatisve pi. m. crenatis, 

 superioribus caul. ster. late ovalibus ; cyma laxa basi nuda ; floribus longiuscule pedicellatis ; capsula maxima 

 (4-5 lin. longa), valvis oblongis calycem plus duplo superantibus ; seminibus ovoideis nitidis hispidulis (iis 

 C. oppositifolii paullo majoribus). 



VOL. VI. NEW SERIES. 60 



