Jaiy, 1921.1 QQ URA :—OAPS OF STELE IN POL YPODIACEA E. 121 



in the diagram (Fig. 3, B). Foliar traces, two in number, depart 

 from the end of the commissual strand in the next^ row (Fig. 3, B ; 

 marked with x ). 



Diplazlum Qonilii (Fr. et Sav.) Mak. Slender rhizome like the 

 above mentioned species. The stelar construction is also similar to 

 the latter. 



Onoclea ^nsibilis L. Creeping rhizome wi-th long intemodes. 

 The stelar construction is similar to the preceding. 



Dryopteris setigera (Bl.) Kze. Almost creeping rhizome with 

 crowded leaves. The stelar construction is the same with that of 

 the preceding species, but two traces depart slightly posterior (Fig. 



3, B ; marked with A). 



Aspkninm incisum Th. Internal as well as external structure is 

 similar to tlie preceding. 



Polystichum falcatum (L.) DiEi.s. var. Fortunei Bak. Oblique 

 rhizome with radially arranged leaves. The construction of the stele 

 is like that of Dryopteris africana, but foliar traces which depart 

 from a gap are three, one from the bottom, the others from the 

 middle part of both sides of the gap. 



Polystichum aristatum (FoRST.) Pr. Creeping rhizome with long 

 internodes. The stele is constructed as in the preceding, but the number 

 of foliar traces in each gap is mostly seven, one departing from the 

 bottom, the others from the margin of the gap. The last pair is 

 always larger than the others. 



Plagiogyria adnata (Bl.) Bedd. Nearly erect rhizome with radially 

 arranged leaves. The internal construction of the stele shows that 

 foliar gaps are arranged in Ys counterclockwise manner. Accordingly, 

 the stelar structure is quite different from the above stated species. 

 Stelar gaps are situated in five rows and in each row two neighour- 

 ing gaps are separated by a transverse commisure. A gap overlaps 

 with gaps of different rows, so that usually three or four meristeles 

 are seen in a cross section. A foliar trace departs from the bottom 

 of the gap. (Fig. 4, B ; marked with o)- 



Woodwardia radicans (L.) Sw. var. orientalis Sw. Oblique or 

 erect rhizome with mostly radial foliar arrangement. The stelar con- 

 struction is quite the same with the preceding, only differing in that 

 two traces depart from the middle part of both sides of a g^. (Fig. 



4, B ; marked with X ). 



Matteuccia orientalis (Hk.) Trev. Erect rhizome with radially 

 arranged leaves. The stelar construction is quite contrariwise to 



