58 AEXIFICIAL KEY XO THE FAMILIES. 



PAKTICULAK CLASSIFICATION. 



Floicers regular, simple, with not more than 10 stamens, and trimerous. 

 (Calyx and corolla usually alike ; the latter sometimes absent.) 



A.— Flowers unaccompanied by foliage. 



Stamens 3 Crocus family, 399 



Stamens G. 



Flowers solitary ColcMcum, 401 



Flowers clustered. 



Ovary below the flower Snowdrop family, 397 



Ovaiy within the flower Lily family, 387 



B. FlOWEKS ACCOMrANIED BY FOLIAGE. 



• A trailing, heath-liko evergreen, growing upon the 

 moors ; leaves linear, dark-green, crowded ; flowers 

 axillary, inconspicuous Crowberry (male fl.), 362 



•* Not of such habit and place of growth, 

 ■f" Leaves parallel-veined (sometimes ribbed). 

 Flowers in a solid lateral spike or " spadiz," resembling 



a finger Sweet flag, 420 



Flowers not in a lateral spadix. 



Flowers solitary, minute, in the centre of a small 



sharp-pointed leaf Butchers' broom, 391 



Flowers not so situated. 



1. Plant floating on the surface of water. Leaves 



nearly circular ifVory-fti? (male flower), 405 



2. Plant not floating in water. 



a. Flowers brown, dry, and inconspicuous Bush family, 414 



b. Flowers green, inconspicuous; stigmas feathery. T/f^Joc/im, 403, 505 



c. Flowers white or gaily-coloured. 



I. Stamens 3 Crocus family, 399 



u. Stamens 9 ; pistils 9 Butomus, 403 



m. Stamens ; pistils numerous Alisma, 403 



IV. Stamens (i ; pistil 1. 



Ovary below the flower. 

 Leaves scaly on the surface, and spinous 



at the edge or point Pine-apple family, 402 



Leaves glabrous and entire Snowdrop family, 397 



Ovary within the flower. 

 Stamens very hairy. 



Flowers in spikes Narthecium, 388 



Flowers in sessile umbels Spidertrcrt, 4U8 



Stamens witliout liairs Lily family, 387 



