PASSIFL0BALE8. 



521 



with parietal placentse (sometimes three or more celled by 

 the produced placentae). 



Order Datiscaceee. — A curious order of four species, one of which, 

 Datisca glomerata, occurs in California. 



Order Begoniacese. — A tropical order of 3o0 species of herbs, mostly 



riQS. 461-S.— iLLUSTKATIONS OP CUCUMIS MkLO. 



Fio. 464. 



Pie. 461.— Male flower, vertical section. ,„„ . ^ . ,, .„ j 



Fil 468 —Female flower, vertical section. Fig. 463.— Andrcecium. Magtiifled. 

 Fig.' 464.'— Diagram of male flower. Fig. 466.— Diagram of female flower. 



American, represented in green-kouses and conservatories by many 

 species of tlie principal genus Begonia— e.g ., B. Bex, B. Evansiana, B. 

 fuchsioides, etc. 



Order Cucurbitacese.— The Gourd Family. Herbs or undershrubs 

 with climbing or trailing stems and diclinous flowers ; placentse pro- 

 duced to the axis of the ovary and revolute. Species 470, mostly 

 tropical. (Pigs. 461-5.) 



