HYDROCHARITACEAE— A RACE/ 



Buti »mus 



• mi 

 A single European spa ies sometimes > ulth 



I [ydrocleis \\ : 



(< Sr. hydro-, water, kieis. 

 A single tropical s] 

 yellow 



Hydrales Water Weed Order 



Hydrocharitaceae — Water-weed Family 



Submerged or floating aquatic herbs; sepals 3, petal 

 3-9-parted, ovary l-9-celled; flower syncarpous, apopetali . 

 regular, usually dioecious. 



1. Stems elongated, branched; leaves small, in wh< 



thread-like tube 



2. Stems undeveloped; leaves long, grass-like 



Philotria — Water-weed 



(Gr. philos, loving, trin. 

 Small native submerged aquatic, often cultivated in aquaria; pistillal 

 ers with a long, thread-like perianth-tube 



Vallisneria — Eel-grass 



( Named for Vallisni 



Submerged grass-like aquatic; pistillate flowers on long ci 



Arales Arum Order 



Araceae — Arum Family 



Herbs, or somewhat shrubby, with flowers in a dense ih] 

 or surrounded by a spathe ; sepals 4-6 or 0, petals 0, 

 pous, apetalous, ovary sunk in the fleshy axis. The autumn 

 vated greenhouse plants. 



1. Spadix covered with flowers to the tip 



a. Stem thick, elongated; leaves perforated 



b. Stem not appearing above ground; spathe ex] 



2. End of spadix without flowers 



a. Spathe hood liki tnple, entire 



b. Spathe expanded, ill smelling, preceding the larj 



Monstera 



Half-climbing plant with aerial roots and edible fruit 



Zantedeschia i 



i Named for Zai I 



Commonly cultivated plant with arro i sha| 

 on long stalks 



Arum 



Flowers on lower part of spadix, tl 

 arated \<\ fringe like sterile B< 



Amorph 



Flowers on lower part of spadix: spall 



