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'") 

 or 6, somewhat dilated at the apex, erect, tardily deciduous. Stamens 10-1'J: 

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

 transversely 2-valved. Hypogynous disk 10-12-toothed. Ovary o-rdlc-l; 

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

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



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 leather}' 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, often 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 bud-. 



1. LEDUM. 



Petals united, forming a gamopetalous corolla. 

 Corolla without sacs for the anthers. 



Corolla large, white, rotate or rotate-cainpanulate. 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. MEX/J KSIA. 

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



5. RALMIA. 

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



f\ TIT I-** Of~l 



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

 like. 



