PASSIFLORACEAE (PASSION-FLOWER FAMILY) 



14 a Flowers yellow 15 



b Flowers not yellow except in cultivated forms 16 



15 a Stipules ovate; plant densely hairy 



HAIRY YELLOW VIOLET. (V. pubescens.) 

 b Stipules lanceolate; plant not hairy or sparingly so 



SMOOTH YELLOW VIOLET. (V. scabriuscula.) 



16 a Flowers usually i in. or more broad ; plants cultivated 17 

 b Flowers usually % in. or less broad; rarely cultivated 18 



17 a Spur at least half as long as petal 



HORNED VIOLET. (V. corniita.*) 

 b Spur less than a fourth as long as petal 



PANSY. HEARTHS-EASE. (V. tricolor*) 



1 8 a Flowers blue or violet; spur elongated 19 



b Flowers whitish or tinged with violet on the outside. . 20 



19 a Spur about Vz in. long, usually as long as petal 



LONG-SPURRED VIOLET. ( V. rostrata.) 

 b Spur about % in. long, about half as long as petal 



AMERICAN DOG VIOLET. (V. conspersa.) 



20 a Stipules entire CANADA VIOLET. (V. canadensis.) 



b Stipules toothed STRIPED VIOLET. (V. striata.) 



2 CUBfcLIUM GREEN VIOLET. (V. c6ncolor.) 



7 PASSIFLORACEAE. Passion-flower Family. 

 i PASSIFL6RA. 

 i a Leaves deeply 5-7-lobed 



COMMON PASSION-FLOWER. (P. caerulea*) 

 b Leaves only slightly 3-lobed 



WHITE PASSION-FLOWER. (P. grdcilis*) 



8 BEGONlACEAE. Begonia Family. 

 i BEGONIA. 



1 a Leaves all basal or nearly so 2 



b Leaves alternate on an elongated stem 3 



2 a Leaves lobed or incised, without white markings on 



upper surface TUBEROUS BEGONIA. (B. veitchii*) 



b Leaves with toothed or wavy margins, variegated with 

 white markings on upper surface 



ORNAMENTAL-LEAVED BEGONIA. (B. rex*) 



3 a Leaves ovate or rounded, usually with red petiole and 



midrib. WINTER-FLOWERING BEGONIA. (B. semperflbrens.*) 

 b Leaves heart-shaped, usually green throughout 



SUMMER-FLOWERING BEGONIA. (B. grdcilis*) 



ill 



