PYROLACEAE (WINTERGREEN FAMILY) 169 



A. Leaves mostly truncate or rounded at base, rounded or acute at apex, undulate, 

 densely tomentose beneath. W. G. elliptica 



AA. Leaves acute at both ends, entire. 

 B. Leaves 3.7-6.2 cm. long, glabrous or nearly so beneath. W. C. 



G. fremontli (bear bush) 

 BB. Leaves 2.5-3.7 cm. long, densely white appressed-silky beneath. U. 



G. buxlfoUa 



PYROLACEAE (Winteegreen Family) 



Herbs or shrubs, low, perennial. Leaves none or evergreen 

 and coriaceous, simple, petioled. Flowers perfect, nearly regular, 

 solitary or racemose or corymbose, variously colored. Calyx 

 segments 4-5. Petals 4-5, nearly or quite distinct. Stamens 

 twice as many as the petals; anthers opening by pores or slits at 

 one end. Ovary ^M^mor, 4-s-celled; stigma 4-s-lobed or -crenate. 

 Fruit a capsule, loculicidal, dehiscent. Seeds many, minute. 



A. Leaves opposite or whorled; flowers solitary or in corymbs or umbels. 

 B. Flowers in corymbs or umbels; style very short; leaves on erect or ascending 

 branches. CHIMAPHILA (p. 169) 



BB. Flowers solitary; style long; leaves much clustered at base. W. C. E. — 

 (Gk. monos — i, esis = delight; referring to the single beautiful flower.) 



Moneses uniflora (SINGLE beauty) 

 AA. Leaves basal and not showing opposite if so; flowers in racemes. 



PYROLA (p. 169) 

 CHIMAPHILA (Pipsissewa) 



Herbs or shrubs, 3 dm. or less high ; stems decumbent. Leaves opposite 

 or whorled, serrate. Flowers white or purplish. Calyx 5-cleft or -parted, 

 persistetit. Petals 5, nearly orbicular. Capsule erect, globose, s-lobed, 

 5-ceUed ; valve margins not woolly. — (Gk. .cheima = winter, phileo = I 

 love; because it is evergreen.) 

 A. Leaves cuneate-oblanceolate, not white-mottled; flowers usually more than 3 



W. C. E. C. umbellata 



AA. Leaves ovate to oblong-lanceolate, often white-mottled; flowers 1-3. W. C. E. 



C. menziesil (spotted pipsissewa) 



PYROLA (Winteegreen) 



Herbs, glabrous, stoloniferous. Flowers nodding, on erect bracted scapes. 

 Calyx s-parted, persistent. Petals 5. Capsule subglobose, s-Iobed, 5- 

 celled. — (Diminutive of L. pyrus = the pear-tree; from the similarity of 

 the leaves.) 



A. Green leaves none or very rudimentary. 



B. Flowers red. W. C. E. P. aphylla (false coral root) 

 BB. Flowers white. W. C. E. P. picta (variable wintergreen) 



AA. Green leaves plainly present. 



C. Style curved downwards. 

 D. Flowers white or greenish. 



