CL. AROIDE^ (brown), 139 



2— 4-celled ; ovules axile, numerous 

 in each cell . . . . .9. Caladium. 



Spadix covered with fertile flowers to the 

 apex, without barren organs (or with 

 a few staminodes mixed with the 

 ovaries in Richardia). 

 Ovule solitary in each cell, basal or sub- 

 basal. 

 Leaves much divided. 



Spathe convolute, obliquely trun- 

 cate at the top ; ovary 2- 



celled ; stamens free . . 6. Pseudohydrosme. 

 Spathe boat-shaped, shortly con- 

 volute at the base, acute ; 

 ovary 1-celled ; stamens free 7. Anchomanes. 

 Leaves sagittate ; spathes expanded, 

 decurrent on the peduncle at 

 the base; ovary 1-celled . 12. Xephthytis. 



Ovules 2-4 in each cell, axile ; spathe 

 obliquely funnel-shaped, with a 

 subulate point ; leaves sagittate, 

 hastate, or entire . . .11. Ricuardia. 



§§Stems climbing or creeping and rooting or 

 erect. 

 Ovary 1-2-celled ; ovule solitary in each 

 cell ; anthers free. 

 Leaves subpinnatipartite or perforated ]3. Rhektophyllvm;. 

 Leaves entire, not perforated, acute or 



obtuse at the base . . . 14. Culcasia. 



Leaves cordate, sagittate or hastate at 



the base, or 3-lobed, not perforated. 15. Ceecestis. 

 Ovary 2-3-celled ; ovules numerous in 

 each cell; anthers of each male flower 

 connate iuto an angular truncate body 16. ANt'EiAS. 

 ■ffPerianth present; female part of the spadix free 

 from the spathe, bearing flowers all round it. 

 Spathe-margins connate into a tube below or 

 nearly to the top; perianth in one piece, 

 urceolate or cupular ; petiole not thickened 



near the middle 18. Stylochiton. 



Spathe convolute below ; perianth-segments free ; 

 petiole with a thickened joint near the 

 middle. 

 Stamens with free filaments ; leaves several, 



evergreen, pinnate . . . .19. Zamioculcas. 



Stamens with connate filaments ; leaf solitary, 



annual, 1-3-pinnate . . . .20. Gonatopus. 



'■Flowers hermaphrodite. 



Leaves all radical, sagittate or hastate; i)etiole 

 prickly; spathe persistent during flowering; 

 perianth-segments 4-6 . . . .21. Cyrtosperma. 



Leaves spaced alopg a climbing stem, not sagit- 

 tate or hastate ; petiole smooth ; 6])athe 

 falling quickly after expansion ; perianth 

 none • -22. Ruaphidophora. 



