Order 73.— HEATIIWORTS. 



285 



Order LXXIII. ERICACEJ3. Heathworxs. 



Hcrls^ or more generally shrubs^ with simple, often evergreen leaves ; 

 flowers regular or nearly so, 4 or 5-partc(l; 'petals rarely almost distinct; 

 stamens as many or twice as many as the lobes of the corolla, and the 

 anthers oddly appendaged and generally opening by two terminal pores; the 

 style 1, and the ovary 4-10-celled, with albuminous seeds. 

 6 5 



Fig. 532. Azalea procunibens. 8. A flower enlarged. 4. A stamen, much enlarged, showing 

 the lengthwise opening of each of tlio cells. 5. Cross-section of a 5-ce!le(l capsule of Rhododen- 

 dron, showing the inflexed margins of the valves. 6. Pyrola secunda. 7. A flower enlarged. 

 8. A stamen enlarged, showing the terminal tubes and pores. 9. Cross-section of a 5-celled, 

 many-seeded capsule. Fig. 540. Checkerberry {Gaultheria). 1. A flower enlarged. 2. A berry. 

 8. Vertical section of the ovary, showing the free, fleshy caly.v. 4 Anther of the Vaccinium 

 Vltis-IdcsB. 5. Stamen of Bcarberry {Arctv)>t<iphylos). 6. Awned stamen of a Blueberry ( VcM- 

 cinium). 



