1904.] OBSERVATIONS ON THE FJ.ORA OF JAPAN 49 



3- rarely 5-dentate with depressed and obtuse teeth (the middle tooth 

 larger), entire on lateral margins, 7-1 G mm. long, 5-10 mm. broad, flaccid- 

 herbaceous, membranaceous when dried ; main nerves 3 ; petiole slender, 

 much longer than the blade, H-7 T } cm. long, narrowly vaginate at the 

 base. Scape aphyllous, erect, slender, exceeding the leaves, simple or with 

 one branch above the middle ; bract situated in the middle portion of 

 scapes or at the base of the branch, small, subulate or linear, shortly 

 vaginate at the base. Flower about 8mm. across, terminal, yellow. 

 Sepals 5, patent, not ieflexed, elliptical or ovato-elliptical, obtuse or rounded- 

 obtuse, concave, thin, glabrous, deciduous, usually 3-nerved, viridescent, about 

 3 mm. long. Petals 5, patent, longer than the sepal, oblong, manifestly 

 cuneately unguiculate, rounded at the apex, 3i-4min. long, nerves trichoto- 

 mously divided at the point of the nectary ; nectary situated between the 

 limb and claw, minute, the scale short and truncate, both lateral margins con- 

 nected to the petal. Stamens numerous, equalto sepals in length ; filament 

 linear-filiform ; anther short and depressed-ovate. Ovaries numerous form- 

 ing a globose head, compressed, oblong- sublunate, straight at the inner 

 edge, acute at the apex and minutely beaked into a short straight or 

 slightly curved style, nearly 1mm. long including the style. Follicles 

 numerous, aggregated into a globose head (4imm. acrsss), small, compressed, 

 obliquely cuneato-obovate, about l|mm. long, viridescent, longitudinally 

 several-ribbed, minutely beaked with the straight style, the inner edge 

 nearly straight ; gynophore obovoid-globose, very thinly hairy, 1 mm. and 

 more in length. 



Hah. Prov. Ugo ; Fuku-ura (T. KawaJcamil 1897), Mt. Chokai (T. 

 Kawakami ! 1897) ; Prov. Rikuzen : Takata-machi in Kesen-gori (G. 

 Tohal Sept, 15, 1903); Prov. Kadzusa ; Motosuka (7. Wohana\ July 28, 

 1902); Prov. Iwaki: Xiida (A'. Okada\ herb. Sc. Coll. Imp. Univ. Tokyo, 

 June 21, 1901). 



This grows on muddy situation near sea in Northern Japan and found 

 at first by Mr. Takiya Kawakami, who kindly sent me the specimens and 

 figures for examination. In form it very closely resembles Ranunculus 

 plantaginifolius Murr. ( = R. sulsuginosus DC. non Pall.), but it is smaller 

 and leaves are quite glabrous and thinner; in the form of leaves it differs 

 apparently also from R. Cymhalarife Pursh (= R. sulsuginosus Pall.), 

 which is not yet found in Japan. Runner sometimes issuing from the 

 axil of the bract on the scape. 



Eranthis pinnatifida Maxim, in Mel. Biol. IX. p. G05, in nota, 



