ERICACEAE (HEATH FAMILY) 171 



HYPOPITYS (PINESAP) 



Plants under conifers; stem simple to the inflorescence, leafy-bracted. 

 Flowers racemose, reflexed. Sepals 3-5, deciduous. Petals 3-5, saccate 

 at base. Stamens 6-10. (Gk. hypo = under, pitys = a Fir tree; refer- 

 ring to the habitat.) 



A. Bracts ovate-lanceolate, entire or slightly erose. W. C. E. H. hypopitys 



AA. Upper bracts obovate to cuneate, erosely or laciniately fimbriate. W. C. 



H. fimbriata 



PLEURICOSPORA (FLOWERING FUNGUS) 



Less than 3 dm. high, white or yellowish; scales fimbriate. Flowers 

 white, in a short terminal raceme. Sepals 4-5, scalelike. Petals 4-5, 

 similar to the sepals. Stamens 8 or 10; anthers linear, apiculate. Seeds 

 ovate, smooth. (Gk. pleurikos = pertaining to ribs, spora = seed. Not 

 clear why.) 



A. Petals about 8 mm. or less long, little or not at all exceeding the sepals and bracts. 

 C. P. fimbriolata 



AA. Petals about 12 mm. long, much exceeding the sepals and bracts. C. 



P. longipetala 



ERICACEAE (HEATH FAMILY) 



Shrubs or trees. Leaves simple; stipules none. Calyx 4-5- 

 parted or -cleft. Corolla mostly gamopetalous, of segments as 

 many as the calyx. Stamens hypogynous; anther cells opening by 

 pores or slits; pollen grains united into 4'$. Ovary superior in 

 flower, often inferior in fruit, 2-5-celled; style i. Fruit a capsule 

 or berry or drupe. 



A. Leaves coriaceous, evergreen. 

 B. Leaves opposite. 



C. Shrub of peat bogs; leaves not densely crowded, not imbricate, lanceolate 

 to oval, 2-4 cm. long; flowers in terminal clusters; corolla saucer-shaped. 

 W. C. E. Poisonous to sheep. (Honor of P. Kalm, a Finnish botanist.) 



Kalmia polifolia (SWAMP LAUREL) 



CC. Shrub of high mountains; leaves densely crowded, imbricate, almost scale- 

 like, 2-4 mm. long; flowers solitary, axillary; corolla campanulate. 



CASSIOPE (p. 173) 

 BB. Leaves alternate. 



D. Leaves 4-15 mm. long, linear or oblong; shrubs low, matted, on high moun- 

 tains. 



E. Flowers in terminal clusters, yellowish or rose-colored; anthers awnless. 



PHYLLODOCE (p. 173) 



EE. Flowers terminal, solitary, white; anthers 2-awned. C. (Honor of 

 E. H. Harriman, an American financier.) 



Harrimanella stelleriana (ALASKA HEATHER) 



