106 Heath (Ericacece). [No. 14 



No. 14. Family ERICACEAE. (Heath Fam.) 



Flowers, regular. Petals, four or five, united. Stamens, 

 twice as many as the petals, and inserted with them. 

 Pollen, of four united grains. Style, one. Seed-case, 

 four- or five-celled, and many-seeded except in Bear- 

 berry (Arctostaphylos, No. 3). 



Leaves, simple, alternate, entire, without stipules. 

 Fruit, a berry, or, in Arbutus (No. 4), a capsule. 

 Prostrate vines. 



GUIDE TO THE GENERA. 



(a) Leaves half inch in length, or less. 



(fr) Leaves whitened beneath. Berries red. (i) Vac- 

 cinium (Cranberry). 



(<5) Leaves rusty-bristly beneath. Berries white. (2) 



Chiogenes (Snowberry). 

 (a) Leaves about one inch in length, or more. 



(6) Leaves reverse egg-shape or spatulate. Edge en- 

 tire. Berry red. (3) Arctostaphylos (Bear- 

 berry). 



(&) Leaves heart-shape. Fruit a capsule. (4) Epigaea 

 (Arbutus). 



(b) Leaves reverse egg-shape or oval. Edge toothed. 

 Berry red. (5) Gaultheria (Wintergreen). 



(i) Genus VACCINIUM, L. 



Fig. 54. Large Cranberry. American Cranberry. V. 



macrocdrpon, Ait. 



Flowers, pinkish, nodding on the ends of slender erect 

 stalks. Petals, four, very narrow, rolled back, united 

 below. Calyx, four-cleft. Stamens, eight. Anthers, 

 lengthened upward into slender tubes, exserted, nearly 



