﻿ON THE BOTANY OF JAPAN. 403 



Ruyschiana (including D. Argunense).* Scutellaria Indica in Japan passes by gradations 

 almost into S. Japonica, Morr. & Decaisne (growing in shady places, the anthers also 

 minutely and densely ciliate in both), which very closely resembles the scarce AUe- 

 ghanian S. saxatUis ; and a Stachys from Hakodadi seems to be only a narrow-leaved 

 form of 8. aspera, Michx., one of the varieties of /S". j)alustris. 



Several of Thunberg's species of Ocymum still remain to be identified. 



Borraginacea;. In the northern part of Japan, the Expedition found Lithospermum 

 officinale, Mertensia maritima, and good specimens of the plant which, in the Botany 

 of Perry's Expedition, I mentioned as a doubtful Omphalodes. But, much as it re- 

 sembles O. vertia, the fruit refers it to Eritrichium § Oreocharis, DC. The species is 

 dedicated to the excellent discoverer, Dr. Williams.-f Also a remarkable Heliotropium, 

 the flowers of which are surpassed in size only by H. convolvulacetim (Euploca, Nutt.) 

 of the United States west of the Mississippi.:}: The plant which I had named Litho- 

 spermuml Japoniciim has not been rediscovered. 



The single Apocynea is the Nerium divaricatum of Thunberg, referred by Zuc- 

 carini to the South American genus Malouetia (Jf. Asiatica, Sieb. & Zucc), which 

 he could not have done had he possessed the fruit. The plant is evidently a congener 

 of Miquel's Parechites Borneana ; but it scarcely differs from the genus Echites itself, 

 except in wanting the umbraculiform reflexed membrane below the stigma. This 

 is represented in the present plant by a narrow annular indusium, which closely girds 

 the base of the stigma, and to which the anthers adhere. || I have not seen Amsonia 

 elliptica, Sieb. & Zucc, — a representative of a peculiarly Eastern North American 

 genus. • 



* Dracocephalum Ruyschiana, var. Japonicum: caule cum foliorum costa marginibusque i-evolutis 

 puberulis ; bracteis ovatis aristatis villoso-ciliatis calyces hirto-pubescentes ajquantibus. Calycis dentes angus- 

 tiores : corolla ampliata sesquipollicaris, pallide cserulea. Cape Siriki-Saki. 



t EniTRiCHiuM GuiLiELMi (sp. nov.) : Omplittlodi vernce simillimum ; racemis elongatis nudis ; corolla 

 alba fauce lutea ; nucibus arrectis a stylo brevi liberis triquetris puberulis facie extcriori planis late deltoidei- 

 ovatis acuminatis, margine acuto integerrimo, stipite erasso. Hakodadi. 



X Heliotropidm Japonicum (sp. nov.) : nanum, e radice pcrenni multicaule, sericeo-villosum ; foHis 

 ellipticis seu obovato-oblon^s sessilibus ; cymis brevibus confertifloris, calycis hirsutissimi laciniis erectis 

 lineari-lanccolatis obtusis tubo corolla; hirsute dimidio brevioribus ; limbo corolla3 ample (scmipollicari) albo 

 valde plicate, lobis subrotundis ; antheris mucronulatis ; stigmatc conico-agariciformi obtusissimo medio leviter 

 constricto stylo breviore. Hakodadi, on the sandy shore. 



II Parechites Thunbergii: scandens; foliis lanceolato-oblongis elUpticisve sajpius cum acumine obtuse ; 

 laciniis calycis nee carinafis nee ciliatis, singulis glandulis 2 squamajformibus truncatis pcctinato-3 - 6-fidis 

 auctis ; corolla alba suavcolente, limbo tubo paullo longiore ; antheris basi biaristulatis. Simoda, «&c. 



