INDIAN PIPE FAMILY 639 



1. P. Andromedea Nutt. Plant 2-15 dm. high, viscid-hairy; scales lance- 

 olate or linear, numerous; sepals oblong, obtuse; corolla 6-8 mm. long, whitish; 

 capsule 8-12 mm. in diameter. In rich woods: Que. Pa. S.D. N.M. 

 Calif. B.C.; n Mex. Submont. Je-Au. 



2. MONOTROPA L. INDIAN PIPE. 



White or pink, leafless plants, with sessile scales. Flowers perfect, solitary, 

 nodding, but in fruit erect. Sepals 2-4, similar to the upper bracts. Petals 5 

 or 6, somewhat dilated at the apex, erect, tardily deciduous. Stamens 10-12; 

 filaments linear-subulate, more or less pubescent; anthers becoming equally and 

 transversely 2-valved. Hypogynous disk 10-12-toothed. Ovary 5-celled; 

 styles very short; stigma funnelform, crenate on the edge. Capsule 5-celled, 

 loculicidally 5-valved, erect. Seeds numerous; testa produced at both ends. 



1. M. uniflora L. Plant 1-3 dm. high, white or pink, turning black in dry- 

 ing; flowers 1.5-2 cm. long; petals abruptly dilated above, strigillose within. 

 Deep woods: Newf. Fla. Calif. B.C.; Mex.; Japan to India. Submont. Je- 

 Au. 



3. HYPOPITYS (Dill.) Adans. PINESAP. 



Yellowish or reddish, violet-scented, leafless plants, with sessile scales. Flow- 

 ers perfect, few or several in a raceme, the terminal one 5-merous, the lateral 

 ones 3-4-merous. Calyx regular; sepals not resembling, the bracts. Petals dis- 

 tinct, as many as the sepals, saccate at the base. Stamens 6-10; anthers hori- 

 zontal, opening by two transverse, unequal valves. Hypogynous disk, 6-10- 

 toothed. Ovary 3-5-celled; style short; stigma funnelform or disk-like. Cap- 

 sule 3-5-celled, erect, loculicidally 3-5-valved. Seeds numerous. 



1. H. latisquama Rydb. Plant pink, 1-3 dm. high, more or less short- 

 pubescent above; scales of the stems broadly ovate, obtuse, 1-1.5 cm. long; 

 sepals spatulate or cuneate, 8-10 mm. long, abruptly acuminate, ciliate; petals 

 cuneate or obovate, 11-12 mm. long, rounded and sinuate at the apex, pubescent 

 and ciliate. Woods: Mont. N.M. B.C. Submont. Jl. 



FAMILY 98. ERICACEAE. HEATH FAMILY. 



Perennial herbs, shrubs, or trees, with alternate, opposite, or whorled 

 leaves, commonly leathery and persistent, without stipules. Flowers per- 

 fect. Sepals 4 or 5, or rarely 6-10, distinct or partially united. Corolla 

 regular or slightly irregular; petals as many as the sepals, usually more or 

 less united. Stamens as many or twice as many, hypogynous; anthers 

 two-celled, sometimes prolonged into terminal tubes, opening by terminal 

 pores or lengthwise, of.ten with horn-like awns. Gynoecium of 2-5 united 

 carpels; ovary with as many cells; styles united; stigma capitate or peltate. 

 Fruit usually a capsule, sometimes a berry or drupe. 



Fruit a capsule. 



Fruit septicidal; valves separating from the central columella, which bears the pla- 

 centae; anther awnless. 

 Petals distinct, spreading; flowers from separate strobilaceous buds. 



1. LEDUM. 



Petals united, forming a gamopeta!6us corolla. 

 Corolla without sacs for the anthers. 



Corolla large, white, rotate or rotate-campanulate. 2. AZALIASTRUM. 

 Corolla small, urceolate or campanulate. 



Heath-like evergreen undershrubs, with the flowers umbellately or 

 racemosely arranged at the ends of the branches, from the axils of 

 the leaves. 3. PHYLLODOCE. 



Deciduous-leaved shrubs, with the flowers from strobilaceous buds, 



ending the branches of the preceding year. 4. MENZIESIA. 

 Corolla rotate, with 10 sacs enclosing the anthers in bud. 



5. KALMIA. 

 Fruit Ipculicidal; the valves carrying with them the partitions; anthers in our genera 



awned. 



Calyx and hypanthium neither accrescent, nor enclosing the capsule, nor berry- 

 like. 



