J902.] OBSERVATIONS ON THE FLORA OF JAPAN. 161 



Potentilla (Heibacefe, Multicipites, Terminales, Ternatfe, Frigidfe, Nivere) 

 Matsuokana Makino sp. nov. 



Perennial, attaining about 20 cm. in height. Khizome erect, or 

 ascending, narrow, hard, rooting below, covered with old j^etioles and old 

 rufo-ferruginous ample stipules. Leaves ternate, adpressed-niveo-tomentose 

 beneath, adpressed-sericeo-pul:)escent above. Radical leaves tufted, erect- 

 patent, petioled, ternate, about 13-24 mm. long, 15-30 cm, broad; midrib 

 prominent beneath ; lateral veins delicate, flaljellato-pinnate, impressed 

 above as is the midrib ; leaflets deeply serrate with obtuse or acutish ovate 

 teeth, but entire towards tlie base, rounded-obtuse at the apex : the termi- 

 nal leaflet shortly j>etiolulate, rounded to elliptical, attaining about 18 mm. 

 long, 14 mm. broad, truncato-cuneate to broadly cuneate at the base ; 

 lateral leaflets sessile, somewhat smaller, rounded to ovato-elliptical, ob- 

 liquely cuneate at the base ; jietiole longer than the blade, attaining about 

 4 cm. long, slender, adpressed-white-toraentose ; stipules often ample, subulate- 

 lanceolate, acuminate, entire, adnate alx)ut one-half below, membranaceous, 

 thinly tomentose above, minutely glanduloso-puberulent under lens, attain- 

 ing about 17 mm. long. Cauline leaves smaller, shortly i)etioled ; stipules 

 lanceolate or subulato-lanceolate, often longer than the petiole and adnate 

 to it with the lower portion. Flowering stems erect, few to several, much 

 exceeding the radical leaves in height, slender, adpressed-white-tomentose, 

 about 1-5-flowered, furnished with 2 leaves below; bracts few, leaf-like, 

 reduced in size in the superior ones, ternate or simple, very shortly petioled, 

 deeply pauci-serrate above, adpressed-white-tomentose beneath, adpressed- 

 pubescent above, the stipules ova to-lanceolate, acute-acuminate, longer than 

 the petiole, adnate below; pedicels slender, li-5icm. long, erect, adpressed- 

 white-tomentose, often furnished with minute, subulato-linear, entire or 

 subbifid, 2-approximate bracts above. Flower about 18 mm. across, yellow. 

 Calyx 5-parted, patent, about 10-11 mm. across, adpressed-piloso-pubescent 

 externally, ciliated, green, persistent ; lobes deltoidly ovato-lanceolate, acute, 

 entire, the midrib delicate, veinlets irregularly anastomosing with vertical 

 areolae ; bracteoles linear, obtuse, shorter than the calyx-lobes, adpressed- 

 pubescent, ciliated, green. Petals 5, patent, exceeding the calyx-lobes in 

 length, sessile, obovato-cuneate, truncate or subemarginate, entire, about 6 mm. 

 long, 5 mm. broad. Stamens many, attaining about 2^ mm. long ; filament 

 filiform, glabrous ; anther broadly rounded, bifid at the base. Ovary-cluster 

 globose, about 2i mm, across ; receptacle sessile, pilose. Ovaries numerous 

 lunato-elliptical, obtuse at both end, glabrous, about § ram. long ; style subter- 

 rainal, filiform, glabrous, two-times as long as the ovary, with a terminal stigma. 



