Observations on the Flora of Japan 



(Continued from p. 252.) 



By 



T. Makino. 



Balanophora tobiracola Makino, sp. nov. (Fig. 

 XVIII.) 



Monoecious, glabrous, about lj-12cm. in length. Rhizome 

 hypogasous, tuberous, aggregated with about 1-5 volvas ; volvas 

 depressed-globular, rugose, yellow when fresh, not pastular, mi- 

 nutely scabro-subgranular under lens, about 8-22mm. acrcss ; 

 mouth irregularly cleft into short depressed-deltoid lobes. 

 Peduncle one to each volva, terminal, erect or ascending, 

 enclosed with imbricated or sparse adpressed scales excepting 

 the apical portion, terete, about 4-10mrn. across, straight or 

 more or less curved, pale-yellowish but hardly rosy above. 

 Scales appressed, several to submany, free, oblong-lanceolate 

 to oblong-ovate, or ovate, but often broad-ovate in the basal 

 ones, entire, obtuse, more or less concave internally, thickish 

 but thin towards the margin, smooth, light yellow. Head 



erect, ovoidly cylindrical-oblong to ovoid, obtuse, very densely 

 covered with female flowers and bracts, scatteredly intermixed 

 with male flowers, J-4cm. long, . 4— 17mm. across, pale when 

 fresh but then soon fulvous after collection. Bracts numerous, 

 subsessile, obovoid-globose, flattened or slightly concave at the 

 top. Male flowers proportionally large, pedicellate, exserted, 

 2— 3mm. across, pale, depressed and rounded in bud ; pedicel 

 straight, terete, 2-2|mm. long. Perianth-segments 3, valvate 

 in bud, patent, orbicular, concave, thickish, one of them often 

 smaller. Anthers 3, subsessile, opposite with perianth-segments, 

 close each other, depressed, transversely dehiscing, with thin 

 cell-wall ; pollen white, sphaerical. Female flowers exceedingly 

 numerous, very minute, about |-lmm. long, inserted on the 



