A KEY TO THE FAMILIES. 



PAGE 



in Mitella & Tiarella toothed. Saxifragacece. 182 



5 styles, 10 stamens. Leaves trifoliate, yellow-flowered species 



with opposite or obscurely alternate leaves. Oxalidacece 234 

 10 stamens, stigma 5-lobed. Leaves evergreen, in Chimaphila 



circled. Pyrolacece. 320 



Flowers; 16 or more petals or parts, etc. 



Tiny green-white flowers, 4 corolla lobes & stamens, 



Leaves toothless, ribbed. Plantaginacea 438 



6-8 petals, 4-6 sepals, 6-12 stamens, 



Leaves lobed or compound, in Caulophyllum on the stem. 



BerberidacecR 152 

 3 petals, 6 or more stamens. Leaves like an arrowhead. 



Aquatic. Alismaceaz. 6 



Flowers on spadix, hooded. Various large leaves, in Acorus 



blade-shaped. Aquatic. Araceee 10 



3 corolla lobes, sepals, & stamens, 



Leaves blade-shaped. Xyridacece 18 



Perianth with 6 lobes, 6 stamens, 



Leaves arrow- and kidney-shaped. Pontederiacecs 22 



Perianth with 6 lobes, 6 stamens, 



Leaves blade-shaped. Amaryllidacece 60 



Perianth of 6 parts in 2 sets, 3 stamens, 



Leaves blade-shaped. Iridacea 62 



Many petals, 3-5 sepals, stigma a disc, 



Leaves afloat. Aquatic. Nymphacecz 126 



5-lobed tubular corolla, 4 stamens, 



Scales, no leaves. Orobanchacece 436 



Ocherous flowers in cylindrical heads, 



Leaves blade-shaped. Aquatic. Typhacea 2 



Ocherous flowers in spherical heads, 

 Leaves blade-shaped. Aquatic. Sparganiacea 4 



570 



