ORDER 73. HEATH WORTS. 



251 



mas 5, often projecting like rays. Pod 5-celled, 5-valved, opening into 

 the cells, many-seeded. U Low, evergreen herbs, almost woody, with the 

 leaves generally radical, and the scape bearing a raceme of nodding flow- 

 ers. Mostly northern. June, July. 



t Stamens ascending, style declined and curved a 



I Stamens and style straight and erect 5, 6 



a Leaves thick and shining. Flowers white or :ose-colored 1,2 



a Leaves green, not shining. Flowers greenish-white. . . .3, 4 



1 P. rotundifo'lia. Round-leaved P. Lvs. orbicular. Mostly white petals. (Fig. 14., 



2 ^ asarifo'lia. Heart-leaved P. Leaves round-cordate. Rose-colored petals. 



& P. ellip'tica. Pear-leaved P. Leaves large, thin, elliptical, on short petioles. 

 4 P. chloran'tha. Green-fl. P. Lvs. small, thick, roundish, shorter than petioles. 



5 P. sccun'da. One-sided P. Raceme with the green- white flowers all on one side. 



6 P. minor. Lesser P. Raceme spike-form, with small, globular, white fls. Mts. 



9. CHIMAPH'ILA. Pipsissiwa. 

 Calyx 5-partod. Petals 5, spreading, round. 



Stamens 10. Anther cells lengthened above 

 into tubes. Style very short, thick. Capsule 

 5-celled. Small evergreens, with oblong, ser- 

 rate, clustered leaves, and terminal flowers. 

 June, July. 



1 C. umbella'ta. Prince's Pine. Leaves wedge-lance- 

 olate, in 4's-6's. Umbel 4-7-flowered, on an 

 erect stalk. July. 



1 C. macula'ta. Spotted P. Leaves lanceolate, acumi- 

 nate, marked with trhitish streaks along the 

 midvein. Flowers 2 or 3. (See Fig. 548.) 



10. HONOT'ROPA. Pine Sap. 

 Calyx of 1-5 bract-like sepals. Petals 4 or 5, 



connivent in a bell -shaped corolla. Stamens 

 8-10. Capsule 4-5-celled, 4-5-valved. Low 

 herbs growing on the juices of other plants, all 

 vrhite or tawny, with scales instead of leaves. 



1 M. nniflo'ra Indian Pipe. Sepals 1-3. Flower 



solitary, scentless. Stem 6' high, common in 



woods. Whole plant white. Summer. 548 



2 M. Hypop'itia. Pine Sap. Downy, tawny. Sepals 4, 5. Flowers raoemed, frt 



emit. Stem O-S' high. Root a tanglod ball of fibres. Au?- 



