212 



M. MIYOSHI. 



Explanations of Plates XXVIII and XXIX. 



Indications of Reference Letters. 



il. I., upper lobe of the stigma ; /. /., lower lobe of the stigma ; 

 sty., style; stig., stigma; loos, tis., loose tissue of the stigma ; 

 cowl, tis., conducting tisssue of the style ; pap., papillœ ; 

 pol, gr., pollen-grains. 



Plate XXVIII. 



Fig. 1. Mazus rugosus, Lour., var. niacrantlnis, Fr. et Sav. (natural 

 size). 



Fig. 2. Coi'olla cut open along the middle line of the central lobe 

 of the lower lip. showing 4 didynamous stamens (magni- 

 fied 3 times). 



Fig. 3. Calyx cut open showing the pistil and its bilobed stigma 

 (magnified 3 times). 



Fig. 4. Euccra sp, whicii visits the flower of Mazus. (magnified 

 1.5 times). 



Fig. 5. Upper and lower wings of the same, showing the veins 

 (magnified 3 times). 



Plate XXIX. 



Fig. 6. Pollen-grains in different positions (magnified 540 times). 



Fig. 7, 8, 9. Stigmatic lobes in the successive stages of closing 

 (magnified 22 times). Fig. 7, at the moment of a shock 

 given. Fig. 8, after 3 seconds. Fig. 9, after 5 seconds. 



