128 KEY TO PLANTS. 
(4) Anthers attached at the base, but opening 
inwardly (in this case corolla imbricate 
in bud), or more frequently attached at 
the back. Herbs or undershrubs, more 
rarely shrubs or trees, but then corolla 
imbricate plaited or induplicate in 
aestivation. 65. 
65 (a2) Stamens 4. Style and stigma entire. 
Herbs or undershrubs. Corolla scarious, 
imbricate in bud. Flowers solitary, 
spicate or capitate. Plantagineae. 
(0) Stamens 5 or more, rarely 4; in the latter 
case style 2-partite or shrubs or trees. 
66. 
66 (a) Ovary 38-celled. Stigmas 3.* Corolla 
contorted and not plaited in aestivation. 
Ovary entire. Cotyledons plane. Herbs 
or undershrubs. Calyx gamosepalous. 
Stamens 5. Fruit capsular. Europe, 
Asia, America. Polemoniaceae. 
(6) Ovary usually 4- or more-celled and 
stigmas 1-2 or 4-8, rarely ovary 3-celled 
and stigmas 1-3, in this case corolla 
* So also in some Stackhousieae, the petals of which are 
free at the base, but connate in the middle, and imbricate 
in aestivation. Their ovary is lobed. 
