SYSTEMATIC BOTANY. 



11 



Upper Fig. — Floorer and 

 buds of ral"chr>rtus albns, 

 and the tliree--wiiiged fruit 

 outlined . 



Eight-handFiCx.— a. Flower 

 of Sphacelec:i]ycina. 6. Same 

 with corolla cut to show sta- 

 mens, pistil, and hairy ring 

 inside, e. Fruit (4 globular 

 akenes" of the same, ly ng in 

 the bottom of iYe calyx, c. 

 Flower and buds, showing in- 

 florescence of Trichostema 

 lanceolatum. d. Ripe fruit of 

 the same (i triangular akenes 

 in the persistent calyx). 



Left-hand Fig. — Verbena 

 hastata (ppikes and bracts). 

 a. Ripe fruit rrmoved from 

 the calyx (natural size and 

 magnified) . 



p. 117. The subglobose 

 and nodding flowers place 

 it in the first division of 



§ 1, Eiicahjchortus. Our plant is the white species. The 

 yellow species has larger flowers. The stiflly erect, open 

 flowers of § 2 of this genus have a markedly difi"erent ap- 

 pearance from the species here figured; yet their struc- 

 ture is similar. The spots upon thejoetals cause them to 

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

 tion name Mariposa, 



