314 



ORGANOGRAPHY. 



Fig. 67: 



Fig. 678. 



Fig. C77. Drupe of the Peach. Fkj. G78. The same cut vertically. 



the characters of the drupe, except that the sarcocarp is of a 

 toughish texture, instead of being succulent. Many fruits, sucli 

 as the Walnut, Coco-nut, &c., are sometimes termed drupes, 

 but improperly so, as they are in reality compound, or formed 

 originally from two or more carpels, besides presenting other 

 distinctive characters. A number of drupes aggregated to- 

 gether on a common receptacle, form collectively a kind of 

 Etierio (see EtyERIo). Any fruit which resembles in its general 

 characters the drupe, is frequently termed drupaceous or drupe- 

 like. 



4. TheUtricle is a superior, one-celled, one or few-seeded fruit, 

 with a thin, membranous, loose pericarj:), not adhering to the 

 seed, generally indehiscent, but sometimes opening in a trans- 

 verse manner." Examples of this kind of fruit may be seen in 

 Amaranthus, Chenopodium, &c. {fg. 680). 



Fig. 679. 



Fig. 680. 



Fia- 070. Vertical section of the drupe of the Clierry (Cerasiis). ep.^P'^PO^Tp. 

 en. Kiidocarp. mt. Mesocaip. a. Seed with embryo. I'W- '>oO. Utri- 

 cular fruit of Chenopudiam, surrounded by the persistent calyx. 



b. Apocarpous Fruits.— C/nrf^r this name we include those 

 fruits which are formed of a single carpel, but of which several 

 are prod{tced by a single j'lowcr. The simi)le fruits just described 

 arc frequently placed by botanists under this head, together 



