KEY 



3. parts in 6's, each stamen before one of the divisions 



or lobes; sepals and petals similarly coloured, 

 flowers in varying shades of red and scarlet, green 

 or white. LiliacecB. 



4. flowers having three sepals, similarly coloured to 



two of the petals, the third petal more conspicu- 

 ously marked and often spurred; one stamen 

 united with the style, forming a column, which 

 faces the lip, flowers yellow, white or varying 

 shades of pink or purple. Orchidacece. 



PLANTS HAVING NET-VEINED LEAVES AND SIM- 

 PLE FLOWERS 



BASAL. 



1. flowers irregularly-shaped, whitish with purple 



markings. Violacece. 



2. flowers in branched sprays, lavender. 



Plumbaginacea '. 



3. flowers dull-white, in dense thimble-shaped heads. 



Plantaginaeece. 



OPPOSITE. 



1. leaves very fleshy, plants, growing in beach sand. 



Caryophyllacece (Arenaria). 



2. stems practically smooth and usually swollen at 



the joints; calyx united, often inflated, five 

 petals, flowers white, pink, or magenta. 



Caryophyllacece. 



3. tiny plant; flowers greenish-white. 



Crassulacece (Tilloea). 



4. leaves pressed against the stiff stem; flowers 



yellow. Linacece. 



5. plant resembling a miniature cypress tree; or in 



a rosette on the sand, reddish-green. 



Euphorbiacece. 



6. leaves usually glandular-dotted; flowers yellow, 



five petals, numerous stamens, more or less 

 united. Hypericacece. 



xv 



