ITS KINDS. 



319 



differs from the pine-apple in having this succulent axis or receptacle 



591 590 593 



on the outside. It may be compared with such an anthocarpous 

 fruit as a rose-hip (Fig. 429). It results from a multitude of flow- 

 ers concealed in a hollow flower-stalk, if it 

 may be so called, which becomes pulpy and 

 edible when ripe ; and thus the^n^^^ seems 

 to grow directly from the axil of a leaf, 

 without being preceded by a blossom. The 

 minute flowers concealed within, or some of 

 them, ripen their ova- 

 ries into very small 

 achenia, which are 

 commonly taken for 

 seeds. The principal 

 form of multiple fruit 

 which has received a 

 substantive name is 

 625. The Strobile or Cone, a scaly multiple fruit, resulting from the 



FIG. 590. A young fig. 591. Vertical section of the same, enlarged. 592. A small slice of 

 the same, more m.ignified, showing the flowers on the inside. 



FIG. 593, A young mulberry. 594. One of the grains, magnified, showing it to be a pis- 

 tillate flower, with a succulent calyx embracing the ovary 595. The same, less magnified, the 

 succulent calyx cut away. 



FIG. 596. Strobile or Cone of a Pitch Pine, Pinus rigida. 597. Inside view of one of the 

 Bcales, showing one of the seeds, and the place from which the other, 598, has been detached. 



