PART I. ORGANOGRAPHY. 



gitudinal section in Fig. 310. The akene may either be superior, 

 or free from an adhering calyx, as in the above example, or it 

 may be inferior, that is, having the calyx closely adherent, as in 

 the fruit of the Sow Thistle and other Cumpositse, Fig. 311. Fig. 

 312 represents the caudate or tailed achenium of Clematis. 



Fig. 314. 



Fig. 314.- 

 Fig. 315. 



Fig. 315. 



-Caryopsis of the Oat. 

 -Samara of the Ash. 



Fig. 316. Fig. 317. 



Fig. 316. — Samara of the Elm. 

 Fig. 317. — Glans of the Oak. 



(2) The Utricle. This is similar to an akene, but the peri- 

 carp is bladdery and fits the seed loosely ; for example, the fruit 

 of Chenopodium, Fig. 313. 



Fig. 



3*9- 



Fig. 320. 



Fig. 318. — Cremocarp of Fennel, splitting into two mericarps. 



Fig. 319. — Sectional view of drupe of Cherry ; e, exocarp; m, mesocarp; en, endocarp, 

 and s. seed. 



Fig. 320. — Berry of Belladonna. 



(3) The Caryopsis. This resembles the akene, except that 

 the pericarp closely adheres to the seed, as in the Wheat, Indian 

 Corn, Oat, etc , Fig. 314. 



(4) The Samara. This resembles an akene, except that it 

 possesses a wing-like appendage. Fig. 315 represents the samara 



