VII] 



URTICIFLOR^E 



57 



which is more or less fleshy, and the endocarp bony in 

 Pteroceltis (Samaroid Drupe). In Celtis it is a Drupe. 

 The tendency throughout the group is for the female 

 flowers, and therefore the fruits, to be aggregated in 

 dense clusters or spikes, heads, &c. This is well seen 

 in Bcehmeria, and is forshadowed in the Elms (Fig. 66), &c. 

 In some e.g. Procris the globoid end of the inflor- 

 escence swells to a fleshy mass on which the achenes 

 are borne : this simulates a strawberry, but here each 

 achene comes from a separate flower, and the whole is an 

 infructescence, not a true seterio. 



Fig. 66. Elm, Ulmus campestris. 1, flowering shoot ; 2, twig of the 

 preceding year, with tuft of fruits and a dwarf shoot bearing foliage ; 

 3, a flower; 4, ovary; 5, fruit; 6 8, seeds; 9, buds (Wi). 



As we pass into the Mulberry and Fig group, this 



