EXPLANATIONS OF PLATES 

 ( Omitted in their proper places). 



Pl. 7 — fig. 1, Gentiana Wislizeni; 2, a flower; 3, calyx; 4, co- 

 rolla laid open ; 5, pistil ; 6, capsule ; 7, seed. Figs. 2-6* are twice 

 and 7 ten times the natural size. 



Pl. 9 — fig. 1, Gentiana humilis ; 2, flower; 3, corolla laid open; 

 4, pistil; 5, seed. Figs. 2-4 are four times and 5 ten times mag- 

 nified. 



Pl. 11 — fig. 1, Gentiana barbellata, a specimen with two pairs of 

 cauline leaves ; 2, a stem with a single pair, calyx laid open ; 3, 

 corolla laid open, showing the glands at base, the hairs at the base 

 of the stamens, and the ciliation of the lobes ; 4, a part of a corolla 

 lobe four times magnified ; 5, pistil ; 6, seed, ten times magnified. 



Fig. 7 — Seeds of Pinus aristata, outer and inner side, better than 

 those figured on Pl. 6 ; 8, embryo, ten times magnified. 



15 



