AKTIFICIAL KEY TO THE FAMILIES. 71 



Stamens 5. 

 Ovary below the perianth. 



Shrubs and small trees Honeysuckle family , 823 



Herbaceous plants. 



Anthers united Lobelia family, 319 



Anthers free Parsley family, 331 



Ovary free inside the perianth. 



Shrubs Azaleas, 131 



Herbaceous plants. 



a. Flowers blue, in incurved racemes Echium, 235 



6. Calyx extended at the back into green wings ..Viola, 122 



c. Stamens shaggy with coloured hairs Mullein, 256 



d. Sepals 2 ; flowers white Blinks, 148 



c. Perianth in six pieces, one of them arched. .Balsam family, 97 

 Stamens G. 



1. Perianth single, tubular, and inflated Birthivort, 349 



2. Corolla of four distinct petals Cabbage family, 115, 121 



3. Petals cohering at the tips, and forming a pouch 



for the anthers Fumitory family, 148 



Stamens 7. 



Trees with quinate or septate leaves Horse-chesnuts, 157 



Herbaceous or under-shrubby plants : flowers in 



umbels Pelargoniums, 103 



Stamens 8. 



Ovary below the perianth, long and slender Willow-herb, 281 



Ovary within the perianth. 



Flowers large and shewy; ovary three-lobed. . . . Trophy -loort, 107 

 Flowers minute and inconspicuous ; ovary un- 

 divided Polygonum, 135 



Stamens 10. 



Plant with long thread-like runners Pendulous Saxifrage, 228 



No runners. 



Leaves pinnate Fraxinella, 155 



Leaves simple. Shrubs Rhododerulron, 131 



Stamens more than 10. 



Ovary three- valved, open at the top Mignonette family, 121 



Ovaries 2 or more; if solitary, not three-valved. . . .Buttercup faviily, 82 



Stamens and pistils protected by simple scales or bracts, vsunlly very few 

 in number, or even solitary ; often exceedingly minute, and sometimes 

 altogether tvanting. 



A. — Trees or surubs. 

 • Flowers appearing previously to the leaves. 



Flowers in panicles Ash-tree, 219 



Flowers in little globular clusters. 



Deep brownish-red Elm, 204 



Yellowish buif-colour Larch (male flower), 462 



