SPAPICIFLOR^E. 



305 



B. CALLED. Flowers hypogynous, naked, ^ . - - Calla (G. 

 palustris). All flowers in the spike are fertile, or the upper ones 

 6-9 stamens ; ovary unilocular with many basal ovules. 



are 



Marsh-plants with creeping rhizome and cordate leaves. Monstera, 

 Rhaphidophora, etc. 



C. ARINE^. Flowers monoecious, naked, g -flowers on the upper, 



? on the lower part of the spadix. Arum (Fig. 301). The spadix 



terminates in a naked, club-like portion (A-) ; below this is a 



number of sessile bodies (rudimentary flowers), with broad bases 



FIG. 302. Colocasia Boryi. 



and prolonged, pointed tips (6); underneath these are the <$-. 

 flowers (m),each consisting only of 3-4 short stamens, which eject 

 vermiform pollen-masses through the terminal pores ; then follow, 

 last of all, $ -flowers (/), each of which consists of one unilocular 

 ovary, with several ovules. Perennial herbs, tuberous, with 



cordate leaves. Dractmculus ; Bwmm ; Arisarum ; Pinellin (Atherunis) ter- 

 nata with leaves bearing 1-2 buds. Zantedeschin (ftliiapicn (Richanlia , Nile lily) ; 

 $ , 2-3 stamens ; $ with 3 staminodes, 1-5-locular ovary (S. Africa.) In some 

 genera sterile flowers are present between the $ and ? portions of the spadix 

 (e.g. in Phllodendron) ; in Ambrosinia a lateral, wing-like broadening of the axis 

 of the spadix divides the cavity of the spathe into two chambers, the anterior 

 W. B. X 



