242 THE BOTAMCAL MAGAZINE. [Vol. xxiv.No.286. 



utroque latere) simplicibus, soris aeque numerosis linearibus 

 niedialibus nee costam nee marginem tangentibus 3 cent, lotigis, 

 indusio pallido lineari. Textura flaccide earnosula, colore 

 pallide viridi, opaco. 



Hab. Formosa: Kotosho. 



Polypodium hastatum, Th. var. nikkoense, n. var. Multo 

 minus, lamina 3—7 cent, longa rotundato-obtusa, fertilis. Plant- 

 ula gregario-caespitosa, sine dubio alpestris. 



Hab. Nikko. 



Observations on the Flora of Japan 



(Continued from p. 234.) 



By 



T. Makino. 



Hydrocotyle dichondroides Makino, sp. nov. 



A perennial forming a small flat densely foliiferous mass 

 covering the ground, inodorous. Stem gracile, filiform, repent, 

 radicant at the nodes with ramose white delicate roots, re- 

 trorsely puberulent with white pubes as well as the petiole and 

 peduncle, viridescent, loosely ramose. Leaves laxly placed, 

 erect or ascending, short- or long-petiolate, orbiculato-reniform, 

 cordate with an open deep sinus at the base, shallowly sub-9- 

 or 7-lobate with sinuses often closed in the bottoms, membra- 

 naceous, green, opaque, very minutely pale-punctulate under 

 lens on the upper surface, very thinly dispersed with setulose 

 erect hairs on the veins on both sides, 5-15mm. broad, 3|-llmm. 

 long ; lobes depressed, creniform, usually 3- (sometimes 5 in the 

 terminal lobe) depressed-crenate, radiately 7-nerved with rather 



