SYSTEMATIC BOTANY. 



11 



FIG. Flower and 

 buds of Calochortus albus, 

 and the three-winged frnit 

 outlined. 



RIGHT-HAND FIG. a. Flower 

 of Sphacele calycina. 6. Same 

 with corolla cut to show sta- 

 mens, pistil, and hairy ring 

 inside, e. Fruit (4 globular 

 akenes) of the same, lying in 

 the bottom of the calyx, c. 

 Flower and buds, showing in- 

 florescence of Trichostema 

 lanceolatum. d. Ripe fruit of 

 the same (4 triangular akenes 

 in the persistent calyx) . 



LEFT-HAKD FIG. Verbena 

 hastata (spikes and bracts). 

 a. Ripe frnit removed from 

 the calyx (natural eize and 

 magnified . 



p. 117. The subglobose 

 and nodding flowers place 

 it in the first di vision of 



1, Eucalychortus. Our plant is the white species. The 

 yellow species has larger flowers. The stiffly erect, open 

 flowers of 2 of this genus have a markedly different ap- 

 pearance from the species here figured; yet their struc- 

 ture is similar. The spots upon the petals cause them to 

 resemble the wings of butterflies; hence the common name Butterfly Tulip, and the sec- 

 tion, name 



