Observations on the Flora of Japan. 



{Continued from Vol. XXVII. p. 258.) 



By 



T. Makiao. 



Lecturer of Eotavy in the Science Co'Ucje, 

 Imperial Univasihj, Tokyo. 



Mitrastemon Yamamotoi Making in Bot. Mag., 

 Tokyo, XXIII. (1909), p. 326 cum %. (Miscel.), et 1. c. XXV. 

 (1911), p. 255, tab. 7. 

 ' forma Kawa-Sasakii (Hayata) Making. 



Mitrastemon Kawa-Sasakii Hayata in Bot. Mag., Tokj^o, 

 XXVI. (1912), p. 112, in Engl. Bot. Jahrb. LI. 1 (1913), p. 

 165, et Ic. PL Formos. III. p. 156 (1913). 



Hab. FORMOSA : Mt. Muto (T. Kawakami and S. Sasaki ! 

 January 1911). 



A larger form growing in the southern warmer region. I 

 do not think that it is a distinct species, as Dr. B. Hayata 

 does, but a mere form of M. Yamamotoi Making. 



PHYSALIASTRUM Making, gen. nov. 



CHAM^SARACHA Franch. et Say. non A. Gray. 



Calyx short-campanulate, shortly 5-fid, persistent, in fruit 

 not inflated, globose or broadly oblong, herbaceous-fleshy 

 (not ' rather herbaceous '), closely appressed to the berry, not 

 angulate, not ribbed, often muricato-pilose, not close at the 

 mouth. Corolla short, campanulate ; tube very short ; limb 

 shortly S-fid, with 5 nectaries each in pairs below ; lobes 

 angulate, induplicato-valvate. Stamens 5, inserted near the 

 base of the corolla ; filament filiform, pubescent \v\th simple or 

 ramose hairs ; anther erect, shorter than the filament, locula- 



