EXPLICATION OF PLATES. 



PLATE II. 



Fig. 1. Very young feaiale inflorescence; 

 the cupulae are yet close together, 

 the bracts are adpressed to the lowest 

 cupula. Natural seize. 



Fig. 2. Young female inflorescence; the 

 cupulae have gone apart ; the whole 

 inflorescence has been pushed up- 

 wards. The yellow dots above the 

 cupula are the tips of the paraphysal 

 hairs. The curving upwards is begin- 

 ning. Natural seize. 



Fig. 3. Young female inflorescence, all- 

 ready nearly erect. The internodes 

 have grown. Nat. seize. 



Fig. 4. A little older stage. At a the 

 tip of the integnmental stigma is 

 visible. The larger flowers have just 

 been fertilised. Nat. seize. 



Fig. 5. Stage older than fig. 6, three 

 ycung fruits are plainly discernable 

 Nat. seize. 



Fig. 6. Stage a little older than fig. 4. 

 Integumental stigmata well visible. 

 Fertilised flowers easily distinguished 

 from the unfertilised ones. In the 

 small figure to the left a picture of 

 a cupula seen from above, the flo- 



wers i, II, III, IV are fertilised; 

 the others are not. Nat. seize. 



Fig. 7. Inflorescence on which but one 

 fruit has become ripe. Nat. seize. 



Fig. 8. Longitudinal , microtome section 

 of a stage somewhat younger yet 

 than that of fig. 1. The ringwall in 

 the axillae of the cupulae has all- 

 ready been formed. X 36. 



Fig. 9. Longitudinal section of a some- 

 what older stage, showing develop- 

 ment of flowers on the top and of 

 paraphysal hairs (at. a.) at the base 

 of the ringwall. X 67. 



Fig. 10. Longitudinal section of an in- 

 florescence a little younger than that 

 of figure 2, showing flowers in diffe- 

 rent stages of development and para- 

 physal hairs. X 1-2. 



Fig. 11. Longitudinal section of female 

 flower, showing formation of external 

 perianth (E. P.). X 300. 



Fig. 12. Idem, showing formation of in- 

 ternal Perianth (I. P.). The external 

 Perianth (E. P.) has allready grown 

 considerably. X 300. 



PLATE III. 



Fig. 13. Longitudinal section of female 

 flower, showing formation of integu- 

 ment X 300. 

 N. zzz Nucellus 

 I. =r Integument 

 E. P. 1= External Perianth 

 I. P. =1 Internal Perianth 



Fig. 



14. Longitudinal section of incom- 



plete female flower of a pseudo-an- 

 drogynous inflorescence, showing pre- 

 sence of Rudimentary Internal Pe- 

 rianth. X 300. 

 N. I.; LP.; E. P. as in fig. 13. 



R. I. P. zr; Rudimentary Internal 

 Perianth. 

 Fig. 15. Longitudinal section of young 



