﻿ON THE BOTANY OF JAPAN. 



397 



There are no Lobeliacea in the collection, and no Campanulaceee new to Japan. 



Ericacece. An interesting discovery is that of the American Cranberry ( Vaccinium 

 macrocarpon) in the northern part of Japan. I have never received this species from 

 the western side of our continent, nor is it recorded from Russian America. Douglas, 

 however, found it at the mouth of the Oregon, and states it to be common there. 

 Vaccinium Vitis-Idcea, although equally new to the flora of Japan, is there within its 



hastato-bidentatis ; scapo digital! ad spithamteam ; floribus flavis. Hakodadi ; Simoda ; Kagosima Bay, Kiu-siu. 

 — Doubtless tbe Youngia pygrtKBa of Ledeboiir and Zuccarini, as to their Japan plant, but not Prenanihes 

 dehilis, Thunb., and not even a congener of Prenanihes pygmcea, Ledeb. {Crepis nana of Eichardson), wliich 

 is apparently a Crepis. 



IxEKis DEBiLis : caulibus gracilibus laxis basi stoloniferis superne longe nudis 1 - 5-ceplialis ; foliis radi- 

 calibus et stolonum obovato-spatbulatis oblongis sublanceolatisve in petiolum longum attenuatis integenimis 

 vel denticulatis nunc pinnatifido-dentatis, caulinis subnuUis paucisve ; involucre 20 - 25-floro ; aclieniis brevi- 

 ter oblongis alato-costatis rostro suo roquilongis, costis laivibus. Prenanthes dcbilis, Thxmh. Fl. Jap. S^ Ic. PI. 

 Jap. t. 39. P. bumilis, Thunh.7 Youngia? debilis, DC. Hakodadi, Simoda, etc. — Spitbam»a ad 

 pedalem : folia 3 - 5-polIicaria. 



IxERis (Chorisis) eepens : caulibus bumifusis longe repentibus ; foliis petiolo brevioribus trilobis tripar- 

 titis trisectisve, nunc pedato-5-sectis raro integris, segmentis obovatis vel rotundatis obsolete denticulatis vel 

 subsinuatis ; pedimculis oppositifoliis petiolum superantibus 1 - 3-ceplialis parce bracteatis aut unifoHatis ; in- 

 volucro 20-30-floro; floribus flavis; acbeniis oblongis crasse 10-costatis (baud compressis) rostro quadruple 

 longioribus, costis acutiusculis acie minutissune scabriusculis ; pappo pluriseriali. Prenanthes repens, Linn. 

 Chorisma repens, Don. Chorisis repens, D C. Nabalus repens, Ledeb. Hakodadi, Japan ; Loo Choo Isl- 

 ands ; Hong Kong ; on the sands of the sea-shore. 



IxERis EAMOSissiJiA : glaucescens ; caule paniculato ramoso folioso ; foliis oblongis argute dentatis nunc 

 runcinatis, infimis in petiolum marginatum longe attenuatis, superioribus basi auriculata vel hastata amplex- 

 icaulibus ; capitulis numerosis corymbosis breviter jjediceUatis 10- 1,2-floris ; corollis flavis ; acbeniis fusifor- 

 mibus in rostrum breve vel longiusculum attenuatis, costis prominuhs obtusis scabriusculis ; pappo uniseriali. 

 Prenanthes hastata, Thunh. ex char. Foi-ma runcinata est Brachyramphus ? ramosissimus, Benth. in Lond. 

 Jour. Bot. 1. p. 489. Kagosima Bay, Kiu-siu. — The achenia are similar to those of Ixeris versicolor, DC. 

 but not of genuine Ixeris ; yet the plant is best referred to this genus. 



Ixeris (Ixeridiuji : capitulum 5 - 10-florum ; pappus sordescens) Thunbergii : caulibus basi vix stoloni- 

 feris foliosis superne parce ramosis ; foliis oblongis membranaceis apice cuspidatis, radicalibus longe petiolatis 

 plerisque laciniato-dentatis sublobatisve, caulinis basi lata vel cordata, semi-amplexicaulibus infra medium pec- 

 tinatim spinuloso-dentatis ; panicula corymbosa vel fastigiata polycephala ; involucro 6 - 8-phyllo 5 - 10-floro ; 

 floribus flavis ; acbeniis fusiformibus sensim longiuscule rostratis leviter lO-costatis glaberrimis ; pappo uniseriali. 

 Prenanthes dentata, Thunh. Youngia dentata, DC. — Var. gracihor ; foliis angustioribus subintegerrimis basi 

 nunc ciliato-dentatis. Simoda, Hakodadi. — This and the next must be congeners of Ixeris versicolor, DC., 

 and probably of Miquel's Aracium. 



Ixeris (Ixeridium) albiflora (sp. nov.) : caulibus gracilibus basi stoloniferis gracilibus unifoliatis laxe 

 3 - 6-cephalis ; foliis oblongo-lanceolatis integerrimis acuminato-cuspidatis, radicalibus in petiolum gi-acilem 

 VOL. VI. NEW SERIES. 61 



