INDIAN PIPE FAMILY 639 



1. P. Andromedea Nutt. Plant 2-15 dm. high, ^^scid-hair^': scales lance- 

 olate or Linear, numerous; sepals oblong, obtuse; coroUa 6-8 mm. long, whitish; 

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

 Cahf. — B.C.; n Mex. Suhmont. Je-Au. 



2. MONOTROPA L. Ixdl\n Pipe. 



WTiite or pink, leafless plants, -n-ith sessile scales. Flowers perfect, sohtarj', 

 nodding, but in fruit erect. Sepals 2^, simUar 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. H>-pog>-nous disk 10-12-toothed. Ovar\- 5-celled; 

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

 locuUcidaily o-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 ■nithiii. 

 Deep woods: Ne\\'f. — Fla.— Calif. — B.C.; Mex. ; Japan to India. Suhmont. Je- 

 Au. 



3. HYPOPITYS (DiU.) Adans. Pixesap. 



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

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

 ones 3— ±-merous. Cah'x 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, imequal valves. Hjijog^-nous disk, 6-10- 

 toothed. Ovary 3-o-ceUed; style short; stigma funneKorm or disk-hke. Cap- 

 sule 3-5-celled, erect, locuhcidally 3-5-valved. Seeds mmierous. 



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

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

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

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

 and cihate. Woods: Mont. — N.^^I. — B.C. Subinont. Jl. 



FAiHLY 98. ERICACEAE. Heath F.oiily. 



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

 leaves, commonly leather^' and persistent, ^"ithout stipules. Flowers per- 

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

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

 less united. Stamens as many or twice as man}', hypog\Tious; anthers 

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

 pores or length'n'ise, often with horn-like awns. Gynoecium of 2-5 united 

 carpels; ovary with as man}' cells; styles united; stigma capitate or peltate. 

 Fruit usuallj' a capsule, sometimes a berrj- 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 gamopetalous corolla. 

 CoroUa without sacs for the anthers. 



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

 CoroUa small, urceolate or campanulate. 



Heath-Uke evergreen undershrubs. with the flowers ■ umbeUately or 

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

 the leaves. .3. Phtllodoce. 



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

 ending the branches of the preceding year. -4. Mexztesl^. 

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



5. Kalsha. 

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

 awned. 

 Ccd\-x and hypanthium neither accrescent, nor enclosing the capsule, nor berry- 

 Uke. 



