V EG ETA TIVE REP ROD UCJTON. 



239 



ner) face (fig. 246). In such cases the carpels are generally 

 aggregated in close spirals near tlie end of a thickish axis, 

 and finall}' ripen into a cone (figs. 341, 35S), \\'hich gi\es 

 the name to one of the largest orders of gymnospernis, the 



Fig. 247. — A , slioot of the yew I J.r.vus Initraia) with three ripe seeds, each surrounded 

 by a rlesliy aril. Natural size. /.'. o\iile witli its tip projecting from the scale leaves 

 of the shoot it terminates. C, the same, hahej, showing the body of ovule (sporan- 

 gium) and the long tube-like integument. 7', young seed of same, with aril partly 

 formed. E, mature seed, fialved. The central (white) body is the embryo ; around 

 it (dotted) the food ; then the seed coat; tlien tlie aril (white). B, C, 1>, /{, slightly 

 magnified. — After Kerner. 



Coniferce. (See further ^ 404. ) The ovules of some gym- 

 nospernis are not borne by cai'pels, but each terminates an 

 axis, as in the yew (fig. 247). 



335. The closed pistils of angiosperms are usually distin- 



