DICOTYLEDONES— COKOLLIFLOE^ 



377 



Fig. 1141. 



Fig. 1142. 



their astringent leaves and bark, and for their edible sub-acid 

 fruits. 



Order 174. Eeicace.e, the Heath Order, — Character. — 

 Shrzihs or small trees. Leaves entire, evergreen, opposite, 

 whorled or alternate, exstipulate. Calyx 4 — 5 -cleft, inferior, 

 persistent. Corolla hypogynous, gamopetalous, 4 — 5 -cleft, or 

 rarely distinct ; cestivation imbricate. Stamens hypogynous, 

 as many, or twice as many, as the divisions of the corolla ; 

 anthers 2-celled, opening by pores or slits, appendiculate. 

 Ovary 4 — 5 -celled, with numerous ovules, surrounded by a disc 

 or scales ; ^'^'^^^^^^'^^ axile ; style 1 ; stigma simple or lobed. 

 Fruit capsular or rarely baccate. Seeds nmnerous, small, 

 anatropous ; embryo minute in the axis of fleshy albumen. 



Diagnosis. — Shrubs or small 

 trees. Leaves entire, evergreen, 

 exstipulate. Calyx and corolla 

 4 — 5-merous. Calyx inferior. 

 Corolla hypogynous, gamopeta- 

 lous, or rarely polypetalous. 

 Stamens hj'pogynous ; anthers 

 2-celled, appendiculate, dehisc- 

 ing by pores or slits. Ovary 4 — 

 5-celled ; style 1 ; placentas 

 axile. Fruit capsular, or very 

 rarely baccate. Seeds small, 

 anatropous, numerous, with 

 fleshy albumen. 



Division of the Order and 

 Illustrative Genera.— The ordev ^..^^ ^^^^ ^^^,^.^^^ ^^^,i^„ ^^ ,i^^ 

 maybe divided into five tribes flower of a species of Heath (£■/•?(•«). 



ae fnllnwc •_ ^''J- l^^^. Sporopliylls of the 



dt) iuiiuwb. same. The stamens are seen to be 



hypogynous. 



Tribe 1. Arhutece. — Corolla de- 

 ciduous. Fruit baccate. Illustrative Genus : — Arbutus, Linn. 

 Tribe 2. Andromedece. — Buds usually clothed with scales. 



Corolla deciduous. Fruit capsular, loculicidal. Illustrative 



Genus : — Andromeda, Linn. 

 Tribe 3. Ericece. — Buds naked. Corolla persistent. Fruit 



capsular, usually loculicidal, or rarely septicidal. Illustrative 



Genera : — Erica, Linn. ; Calluna, Salish. 

 Tribe 4. Bhodorece. — Buds scaly, cone-Mke. Corolla deciduous. 



Fruit capsular, septicidal. Illustrative Genera: — Azalea, 



Linn. ; Phyllodoce, Salish. 



