78 HEATH ORDER 



(y) Leaves toothed 

 in. Leaves lanceolate 



(m) Fruits hairy S. disco lot- 



in) Fruits smooth 

 h. Stipules small and glandular, 



or none, S. lasidndra 



i. Stipules large, scarcely gland- 

 ular S. corddta 

 n. Leaves oblanceolate or elliptic to 

 obovoid 

 (m) Leaves smooth beneath, acute 5\ monticola 

 (n) Leaves hairy beneath, blunt as 



a rule S. Nuttdllii 



(b) Trees 

 x. Leaves narrowly lanceolate, short- 



petioled S. nigra 



y. Leaves broadly lanceolate, or lance- 

 ovate, long-petioled S. amygdaloides 

 b. Leaves persistently hairy 



(1) Twigs densely white-hairy; leaves linear- 



oblong S. Candida 



(2) Twigs not densely white-hairy 



(a) Fruits densely white-woolly; leaves 



lanceolate to ovoid S. glducops 



(b) Fruits merely hairy 



x. Leaves narrowly lanceolate to oblance- 

 olate 5\ geyeridna 

 y. Leaves lance-oblong to obovoid >S\ rostrdta 



(c) Fruits smooth S. Wolfii 



ERICALES HEATH ORDER 

 PIROLACEAE VVINTERGREEN FAMILY 



Sepals 4-5, united, petals 4-5, separate, stamens 8-10, ovary 4-5-celled, 

 style short or slender, often turned downward, stigma 5-lobed, or 5-crenate, 

 fruit a capsule ; flowers solitary or in racemes or corymbs ; evergreen 

 perennials with simple, entire petioled leaves. 



1. Flower solitary Moneses 



2. Flowers several to many 



a. Flowers in a raceme; leaves basal Pirola 



b. Flowers in a corvmb ; leaves on the stem Chimaphila 



