Cistaceae, Violaceae j \ 



Fam. 5. CiSTACEAE. Herbs and shrubs. Leaves 

 mostly opposite. Stellate and glandular hairs, the latter 

 with essential oils, often present. K 5-3. C 5-3 or o. A co . 

 G (5-10). Ovaiy usually i -celled with parietal placentae 

 with 00 or 2 more or less orthotropous ovules. Capsule 

 dehiscing between placentae. Seeds with endosperm. 



Only British genus (ovules 00 , capsule 3-valved) : 



Helianthemum. 



Suborder 4. FlaCOURTIINEAE. Staviens often 5. 

 Gynaeciiim free on convex or tubular axis, rarely adnate 

 to axis. Endosperm copious containing oil and proteid 

 bodies. 



Fam. 6. Violaceae. Herbs or shrubs with alter- 

 nate stipulate leaves. Flowers 5-merous (except gynae- 

 cium), actinombrphic or zygomorphic. Petals sometimes 

 united. Stamens 5. Carpels (3) each with i-oo ana- 

 tropous ovules with two integuments on parietal pla- 

 centae. Fruit a loculicidal capsule or berry. 



Tribe Violeae. Corolla zygomorphic, two ajiterior 

 stamens spurred. 



Only British genus (flowers solitary in the leaf axils) : 



Viola. 



^. The flowers are cyclic and the sinking of the gynaechim into 

 the hollow flower-axis is general: connation of gynaeciuin and 

 flower-axis predominates. (For e see page 69.) 



Order 19. Myrtiflorae. Herbs, shrubs, or trees, 

 bundles often bicollateral. Flowers C}'clic, heterochlamy- 

 deous, rarely apopetalous, haplo- or diplostemonous. 

 usually actinomorphic. Flower-axis concave. Gynae- 

 cinni syncarpous and mostly united to axis. 



Suborder i. Thymelaeineae. Usually shrubs 

 with entire leaves. Flozuer-axis more or less tubular 



