IV 



DESCRIPTION OP PLATES. 



rLATE VI. 



Fig. 1. Mimosa puclica. Primary pulvinus ; longitudinal vertical section. Treated with 2 °/ ( 



solution of osmic acid, so as to demonstrate the thickness of the 



Fig. 2. 

 Fig. 3. 



Fig. 4 



Fig. 5. 

 Fig. 6. 



Fig. 7. 



Fig. 8. 



Fig. 9. 



.g. 10. 



if. 11. 

 Fig. 12. 

 Fig. 13. 



Fig. 16. 

 F.g. 17. 



Ditto 



bitto 



Ditto 



Ditto 

 Ditto 



Ditto 

 Ditto 

 Li'to 



Ditto 

 Ditto 

 Ditto 

 Ditto 



Ditto 



Ditto 

 Ditto 



ditto 



ditto, 



ditto. 



ditto, 

 ditto. 



i 



lit to. 



ditto, 

 ditto. 



difto. 



ditto. 



ditto. 



ditto. 



ditto. 



Fig. 14. 



Fig. 15. Ditto ditto. 



ditto, 

 ditto. 



superficial and deep strata of parenchyma in the superior and 

 inferior pads x 



Primary pulvinus ; transverse vertical section similarly treated 



Ditto ; 



vertical section of deeper stratum of parenchyma 



treated with vesuvin 



Primary pulvinus; horizontal section of deeper stratum of paren- 



carmine 



Secondary pulvini of terminal pinme ; horizontal, longitudinal section 



Ditto 



ditto ; 



ditto, 



ditto 



Secondary pulvinus ; section of base of outer side ; showing bracket 



Ditto ; 



D.tto ; 



Primary pulvinus ; pitted cells of deeper stratum of parenchyma 

 Tertiary pulvinus; vertical transverse section treated with 



picro- 



carmine 



Ditto; 

 Ditto ; 

 Ditto ; 



cell from inferior parenchyma 

 tissue of superior parenchyma 

 cell from superior parenchyma 



x 



a, Secondary pulvinus, 6, primary pulvinus; vertical, transverse sections x 

 Primary pulvinus; vertical, longitudinal section; stained with picro- 



x 



X 

 X 



X 



20 



20 



x 400 



chyma treated with vesuvin x 400 



10 



10 



25 

 10 



. x 150 



section of base of inner side x 150 



sections of base, a, inner, b, outer side . . 



22 



x 830 



x 120 



Tertiary pulvinus ; tissue of inferior parenchyma x 400 



x 830 

 x 400 

 x 830 



Fig. 1. 



Fig. 2. 

 Fig. 3. 



Fig. 



4. 



Fig. 5. 

 Fig. 6. 



Fig. 7. 



% 8. 



Fig. 9. 



Fig. 10. 



PLATE VH. 



Apparatus demonstrating the action of the application of heat to localised areas in the 



course of mature axes of Mimosa pudica as a cause of centrifugally propagated 

 movements ouly 



Pulvinar parenchyma of Cassia sumatrana 



Ditto ditto of Pithecolobium sarnan . . 



Ditto ditto of Leucaena glauca » 



Ditto ditto of Mimosa pudica 



Vertical section of secondary pulvinus of Cassia alata ; snowing laminar expansion of 



parenchyma over the base of the outer half of the pinna 



Pith, niobium sam„n ; nocturnal position of pinnae and pinnules in a young leaf \ \ \ 



Ditto ditto; cells from secondary pulvinus ... 

 Portion of one of the Uiciferous tube, of En^iia an tlq uorum; showing the 'and* " 



ated protoplastic lining & 



Epidermis of Euphorbia antiquorum: showing somatic' orifices 'through which latex * 

 • exudes when the tissue is exposed to the influence of the vapour of chloroform . . x 



310 

 160 

 310 

 310 



25 



180 



110 



110 



4 







