Priiiiulaceae 83 



C. Capsule. Petals united, persistent, scarious. 

 Anther-thecae opening by pores above. Appendage 

 usually on back of connective. 



Subfamily 4. Ericoideae. 



Tribe 7. Ericeae. Buds naked. Leaves small. 

 Carpels with many ovules. Capsule many-seeded. 



Calyx small, green. Corolla with four lobes. Capsule 

 loculicidal. Erica. 



Calyx sepaloid, exceeding corolla. Corolla deeply 

 divided. Capsule septicidal. Calluna. 



Order 2. Primulales. Floivers 5 (rarely 4-8)- 

 merous, usually actinomorphic. Corolla nearly always 

 gamopetalous. Stamens in one whorl, inserted on 

 corolla opposite the lobes {ajitipetalous). Ovary i-loc 

 with 00 -I ovules which have two integmne7its on free 

 central or basal placenta. 



Fam. Primulaceae. Mostly perennial herbs. 

 Leaves usually spiral, exstipulate. Stamens opposite 

 corolla lobes. Ovary usually superior with 00 whorled 

 or spirally arranged ovules on a free central placenta. 

 Style I. Capsule with usually many-angled and facetted 

 seeds sunk in cavities on the placenta. 



Tribe i. Androsaceae. Corolla imbricate or quin- 

 cuncial in bud, lobes eventually erect or spreading, never 

 reflexed (in British genera). 



Subtribe i. Primulinae. Land plants. Corolla lobes 

 entire or bifid. Capsule with valves. 



Only British genus (Leaves broad. Flowers con- 

 spicuous. Corolla-tube long) : Primula. 



6—2 



