308 



AURANTIACE^. 



[part II. 



and C. vulgaris, the Bitter or Seville Orange, 

 to these may be added C. nohilis the JMandarin 

 Orange, the fruit of which is reddish, and which 

 parts naturally from its rind, which is sweet, 

 and may be eaten. All the species agree in 

 having a tube-like calyx, scalloped into five 

 short teeth, and a flower of generally five 

 fleshy petals, (see a in Jig. 121), though the 



Fig. 121. — Flovn'er and seed of the Orangk. 



number occasionally varies from four to nine. 

 These petals are elliptic in shape, concave, and 

 always widely opened. In the centre of the 

 flower are the stamens, varying from twenty 

 (which is the ordinary number) to sixty ; the 

 anthers are two-lobed, and oblong, and the 

 filaments are somewhat thickened at the base, 

 and united there into several small bundles (Z>), 

 but free above. The pistil has a somewhat 

 globular ovary, with a cylindrical style, termi- 



