CLASS II. ANGIOSPERMAE 



Trees, shrubs or herbs characterized by hav- 

 ing the seed enclosed in an ovary; 

 includes sub-classes: Monocoty- 

 ledoneae, Dicotyledoneae. 



Sub-Class I. 

 MONOCOTYLEDONEAE. Monocotyledons. 



i PANDANALES. Screw Pine Order, 

 i PANDANACEAE. Screw Pine Family. 

 i PANDANUS. 

 i a Leaves variegated with white or yellow 



VARIEGATED SCREW PINE. (P. veitchii.*) 

 b Leaves green SCREW PINE. (P. utilis.*) 



2 TYPHACEAE. Cat-tail Family. 

 i TtPHA. 



i a Staminate and pistillate parts of the spike usually con- 

 tiguous BROAD-LEAVED CAT-TAIL. (T. latifblia.) 



b Staminate and pistillate parts of the spike separate 



NARROW-LEAVED CAT-TAIL. (T. angustifblia.) 



3 SPARGANIACEAE. Bur-reed Family. 

 i SPARGANIUM. 



1 a Plant 3 ft. or more high; fruiting head 1-2 in. in diam- 



eter; fruit, not head, sessile 



BROAD-FRUITED BUR-REED. (S. eurycdrpum.) 

 b Plants usually less than 3 ft. high; fruiting head Vz-i 



in. in diameter ; fruit stalked 2 



2 a Leaves not more than ^4 in. broad ; plant noticeably 



slender SIMPLE-STEMMED BUR-REED. (S. simplex.) 



b Leaves %-% in. broad; plant often branched 



BRANCHING BUR-REED. (S. androcladum.) 



2 NAIADALES. Pondweed Order, 

 i NAIADACEAE. Pondweed Family. 



1 APONOGfeTON CAPE PONDWEED. (A. distachyum*) 



2 POTAMOGfeTON. 



i a Floating and usually submerged leaves present 2 



b All leaves submerged 7 



