— 28 — 



From the descriptions just given above, the reader will under-- 

 stand that the plant belongs to the subfamily Cliondrieae under 

 Rkodomelaccae. And the affinity which it shows with Coeloclonium' 

 and CliOiidria will be beyond any question. 



PL. VI, Figs, i-i 7. Fig. 1 : Acrocystis nana Zanard. in nat. state" 

 and size. ― Fig. 2 ： portion of frond, +. ― Fig. 3 : longitudinal section of 

 l»all ( seini-diag-ramatic), ― i^ig-. 4- ： portion of the longitudinal sec- 

 tion of the wall of ball, (、' さ。. 一 Ficr. 5 '- portion of the cross-section of 

 the wall of ball, 丄 ず. ― Fig. 6 '- cross-section of the pedicel of ball,- 

 0.5 mm thick, や. 一 Fip^. 7 : axial and pericentral cells of ru^. 6， to show 

 rhizoid cells between them, '-^ -. — tip-. 8 : rhi/oid cells between ■ 

 pericentral cells, p、 p、 ^-- : — ru^ 9 ： bottom of the cavity, showino- 

 free extension 01 rnizoid cells into the cavity ； a、 axis ； "。 ： ― Figr, 10 : 

 bottom of the cavity, showing pericentral cells which form the inner -， 

 most layer of the wall of ball ； b、 basal cell of a hair-leaf ； i せ。. 一 Fig. 

 11 : extremity of a pericentral cell uniting with 4 innermost cells of 

 the wall of frond, さや。. 一 Fie. 12 and 13 : portion of longitudinal section 

 of cortex showing the division of an infracortical cell into four epi- 

 dermal cells ； a, upper end ； . — Fig. 14 : lower articulations of 

 the central axis in swollen portion ； b、 basal cell of hair-leaves ； 

 pericentral cells 5-6 ； ?、 Fig. 15 : younp- ball, slightly depressed at 

 the apex, ― Fip". 16: youn ゾ root-hair, 1 ず Q. ― Fig. 17: thicker root - 

 filament, や. 



PL. VII， Figs. 18-33. Fir. 18 : apex of frond, and circles of hair-- 

 leaves seen from above, や. 一 Fig. 19: the apical portion of Fg. 18 

 maod. ； V、 apical cell ； 力， basal cell of younger hair-leaves ； -. — Fig. 

 20 ： young hair-leaves, e^o. ― Fip^. 21 : so-called pit of the axis, 6?。. 一 - 

 Fio-. 22 ： stichiclia, -^. — Fig. 23 : cross-section of a stichidium ； 

 p、 penceiuial cell ； d、 cover-cells ； ザ. 一 Fig. 24 ： longitudinal section 

 of a stichiduni ； d、 cover-cells ； 2 や 。• ― Fig. 25 ： cover-cells of tetra-- 

 sporaneia seen from above, 2^0. ― Fig. 26: portion of longitudinal 



