WINTERGREEN FAMILY 79 



Pirola Linne 1753 Wintergreen 



(Lat pinim, pear, ola, little, from the leaves) 

 PL 14, fig. 1-4; pi. 16, fig. 7. 

 Sepals 5, petals 5, concave, sessile, white, yellowish, pink or purple, 

 stamens 10, ovary 5-celled, style straight, or declined, slender or thick- 

 ened at the summit, stigma 5-lobed, capsule subglobose, 5-lobed, 5-celled, 

 5-valved from the base ; flowers nodding, in terminal racemes ; leaves basal ; 

 perennial. 



1. Flowers pink or rose-purple; leaves roundish.. 



often heart-shaped at base P- uliginosa 



2. Mowers greenish to white, rarely pinkish 



a. Style curved 



(1) Leaves mottled with gray above P. picta 



(2) Leaves not mottled 



(a) Leaf blades shorter than the petioles, P. chlordntha 



(b) Leaf blades longer than the petioles P. elliptica 



b. Style straight 



(1) Style enclosed in corolla; leaves rounded P. minor 



(2) Style projecting beyond corolla; leave- 



ovate P. secunda 



Moneses Salisbury 1821 Moneses 



(Gr. monos, one, hesis, joy, from the single flower) 



PL 14,' fig. 5. 



Sepals 4-5, petals 4-5, white or pink, stamens 8 or 10, ovary 4-5-celled, 

 globose, style straight, club-shaped at summit, stigma 4-5-lobed, capsule 

 subglobose, 4-5-celled, 4-5-valved from the summit; flowers terminal, soli- 

 tary ; leaves petioled, fine-toothed, opposite or whorled in 3's ; perennial. 

 Stems 1-8 in. high ; leaves ovate to round. .5-3 cm. long ; 



flowers nodding. 1-2 cm. wide M. uniflora 



Chimaphila Pursh 1814 Pipsissewa 



(Gr. cheiwa, winter, pliilos, loving) 



PL 14, fig. 6. 



Sepals 5, petals 5, white or purplish, stamens 10, ovary 5-celled. 5- 

 lobed, globose, style very short, obconic, stigma large, round. 5-crenate, 

 capsule erect, globose, 5-lobed, 5-celled, 5-valved from the top; flowers 

 spreading or nodding in terminal corymbs ; leaves opposite, or whorled. 

 evergreen, short-petioled, toothed ; perennial. 

 Stems 3-10 in. high ; leaves lanceolate to ovate, 1-3 in. 



long; flowers 1-2 cm. wide C. umbettdta 



