ORGANS OF EEPEODUCTIOX. 



Fig. 440. 



217 



Fig. 439. Flower of Strawberry (Fragaria) with a regular polysepalous 

 calyx surrounded by a wliorlof leafy organs, to wliich the name of epi- 

 calyx or involucre" has been applied. Fig. UO. Flower of Monks- 

 hood (Aconitum Xapellus) with an irregular polysepalous calyx. The 

 upper sepal is helmet-shaped or galeate. 



fissures, or teeth, is indicated by the same prefixes as those 

 previously referred to as being used in describing analogous 

 divisions in the blade of a leaf; thus the above calyx where the 

 divisions are five, would be described as five-partite or quinque- 

 partite, five-cicft or quinquefid, five-toothed or quinqucdentate, 



Fig. 441. 



Fig. 442. 



Fig. 443. 



Fig. 441. Partite calyx of the Pimpernel (Anagallis). Fig. 442. Cleft of 



fissured calyx of the Centaury {Erythrcea). Fig. 443. Dentate or 



toothed calyx of Campion (Lyclmis). 



according to the depth of the divisions. In like manner the terms 

 tripartite, trifid, or tridtntate, would indicate that a calyx was 

 three-partite, three-chft, or three-toothed, and so on. The 

 number of divisions in the majority of cases corresponds to the 

 number of component sepals in the calyx, although exceptions 

 to this rule sometimes occur, as for instance in those cases 

 where the divisions are themselves divided into others ; a little 

 care in the examination will, however, generally enable the 



