324 BOTANY. 



Family Eapateaeeae : Tall, sedge-like marsh herbs with 3-celled 

 pistil ; stamens 6, in pairs ; perianth of two dissimilar whorls, each 

 of three similar leaves. (Sp. 31.) 



Order 41. NUDIFLOE.a:. Aroids. 



Compound pistil mostly tricarpellary, superior ; ovules more than 

 one'; flower-leaves reduced to scales or entirely wanting. 



Family Pandanaceae (Screw-pines) : Shrubs or trees with spirally 

 crowded, narrow, stiff leaves on the ends of the branches ; pistil 1- 

 celled ; ovules one or many. (Sp. 83.) 



Family Cyclanthacese ; Mostly herbaceous plants with broad petioled 

 leaves having parallel venation ; pistil 1-celled ; 'ovules many, on 

 four parietal placentae. (Sp. 44. ) 



Family Typhaceae (Cat-tails) : Aquatic or paludose herbs with linear 

 sheathing leaves ; pistil 1 celled ; ovule 1. (Sp. 16.) 



Family Aroideae (The Aroids) : Mostly herbaceous plants with 

 broad petioled leaves, having reticulate venation ; pistil 1- to 4-celled ; 

 ovules 1 or more. (Sp. 900.) 



Family Lemnaceae (Duckweeds) : 'Very small floating aquatic herbs ; 

 pistil 1-celled ; ovules 1 or more. (Sp. 19.) 



Okder 43. CALYCINai. Palms. 



Compound pistil mostly tricarpellary, superior ; ovules usually 

 one ; flower-leaves reduced to rigid or herbaceous scales. 



Family Flagellarieae : Erect or climbing herbs with long narrow 

 leaves ; pistil 3 celled ; ovules solitary ; fruit a 1- to 3-seeded berry. 

 (Sp. 6.) 



Family Juncaceae (The Rushes) : Herbs with narrow leaves ; pistil 1- 

 to 3-celled ; ovules solitary or many ; fruit a dry 3-valved pod. (Sp. 

 210.) 



Family Palmaceae (The Palms) : Trees or shrubs with compound 

 leaves ; pistil 1- to 3-celled ; fruit a 1-seeded berry or drupe (rarely 

 3- to 3-seeded). (Sp. 1100.) 



Order 43. GLTJMACEJE. Grasses. 



Compound pistil reduced to 1 or 2 carpels (rarely tricarpellary) ; 

 ovule solitary ; flower-leaves reduced to small scales or entirely 

 wanting. 



Family Eriooauleae ; Rush-like herbs with flowers in close heads ; 

 perianth segments 6 or less, small ; pistil 3- or 2- celled ; ovules or 

 thotropous, pendulous. (Sp. 338.) 



