6 THE JOURNAL OF JAPANESE BOTANY. LVoi. in No. 2. 



ovato-lanceolate, undivided, but subtrilobed in the middle one, sliortly acumi- 

 nate, serrate and more or less ciliated on margin, thickly membranaceous, 

 minutely and shortely puberulent above (denser so on the midrib and veins), 

 paler and glabrous (except the midrib) and with conspicuous veinlets Ijeneath, 

 about 4-8 cm. long; petiolule about 2-15 nmi. long. Cauline leaves manifestly 

 inflato-vaginate, the superior ones smaller, shortly petiolate, trisected; the 

 lateral leaflets very deeply 2-parted, the terminal one 8-lobed or 3-parted, 

 acuminate, shai-ply sublaciniato-serrate ; the uppei-most leaf near the top much 

 smaller, 3-pai-ted. Umbels compound, large; involucral scales few, unequal,^ 

 linear or linear-lanceolate, acuminate, entire or few-serrate ; peduncles numer- 

 ous, spreading, elongate, unequal in length, puberulent on the inner side 

 with pale short erect hairs. Umbellulas involucellate ; involucels several, Imear, 

 acuminate, patent or reflexed, green, shorter than the outer pedicels; pedicels 

 numerous, gracile, glaljrous bat pulvereo-puberulent on the inner side, un- 

 equal in length. Flowers white, 4 mm. across. Calyx very short, depressed, 

 annulate, obscurely 5-lobed. Petals 5, subcordate, incurved above with the 

 acute tip. Stamens 5; filament longer than the petals; anther elliptical, pur- 

 ple. Disk thick, depressed, semisphaerical. Styles 2, about 1 J mm. long, 

 divergent, arcuate outwards. Dvary obovato-elliptical, sulcate, glabrous, 1 1 mm. 

 long. Cremocarp 



Nom. Jap. Tosa-hofu (nov.). 



Hab. Prov. T( )SA in Shikoku: Tosayama-mura (Torama Yosuixaga ! Sept» 

 1914, leaves, July 16, 1916, flowers). 



Polystichum caryotideum (AVall.). 



Aspidium caryotideum ^Xaia.. 



Cyrtomium caryotideum Presl. 



var. clivicoluni Marino, nov. var. 



Polystichum clivicilum Marino, ined. 



Caudex hypogaeous, short, ascending, nigrescent. Stipes caespitose, erect,. 

 18-28 cm. long, nigrescent towards the base, light green as in the rachis, dense- 

 ly scaly; scales brownish-nigrescent, ovate to subulato-laneeolate, acuminate, 

 firmely membranaceous, patent or reflexed, larger in the lower ones. Frond 

 oblong, pale green, not shining and opaque, pinnate, 43-50 cm. long, 17-22 cm. 

 wide; rachis flexnous above, thinly covered with reflexed fimbriato-lanceolate 

 and setoso-acuminate brown scales ; pinnae about 9-13 on each side, not close, 

 alternate often excepting the lower one pair or two pairs, very shortly petio- 

 lulate, but nearly sessüe in the upper ones, patent but sub-erect-patent in the 

 superior ones, oblong-lanceolate, falcate, caudato-acuminate at the apex, trun- 

 cato-rounded at the base, broader in the upper base, irregularly repand-crenate 

 mixed with crenate teeth on margins, usually subauriculate, slightly acutely 

 serrate at the apex, about 8 cm. long and 6 cm. wide in the lower largest one, 

 thinly chartaceous, the terminal pinna mostly cleft into 2 lobes. Sori small, 

 copious, sparsely scattered. Xerves well visible when hold to the light, anas- 

 tomosing; costa with thin small scales as is the petiolule; main veins pinnate. 



