290 DIAPEXSIACE^E. (dAPEXSIA FAMILY.) 



SUBORDER IV. MOKOTROPE^. THE INDIAN-PIPE FAMILY. 



19. SCHWEINITZIA, Ell. 



Calyx of 5 sepals, persistent. Corolla persistent, bell-shaped, 5-lobed. Sta- 

 mens 10: anthers shorter than the filaments, fixed near the apex, awnless ; 

 the cells opening at the apex. Style short and thick : stigma large, 5-angled. 

 Capsule ovoid, 5-celled Seeds very numerous. Stem low (3 / -4 / ), smooth, 

 brownish, scaly. Spike several-flowered. Flowers odorous. 



1. S. odorata, Ell. Stem 3' -4' high, smooth; scales ovate, imbricated ; 

 flowers .spiked, crowded, nodding ; sepals oblong, nearly equalling the flesh- 

 colored corolla. Shady woods, North Carolina. April. Flowers violet- 

 scented. 



'2. S. ReynoldsiJB, Gray. Scales ovate and imbricated, or narrower 

 and scattered ; flowers racemose ; sepals much shorter than the white corolla. 

 Dry sandy thickets, near St. Augustine. Nov. 



20. MONOTROPA, L. INDIAN-PIPE. 



Calyx of 2 - 5 deciduous sepals. Corolla 4 - 5-pebalous, gibbous at the base, 

 deciduous. Stamens 8-10: anthers reniform, opening across the apex. 

 Stigma broad,4-5-rayecl. Capsule ovoid, 8- 10-furrowed, 4 -5-celled. Seeds 

 very numerous, minute. Stems low, fleshy, white or reddish, scaly. Flowers 

 solitary or racemose, nodding. Capsules erect. Herbs parasitic on roots, or 

 decayed vegetable matter. 



1. MO\OTROPA, Nutt. Stem \-flnwered: sepals 2-4: petals 5 : anthem 

 opening by 2 chinks : sh/le short and thick. 



1. M. uniflora, L Shady woods. August -Sept. Stem smooth, 

 4' -10' high, white, turning black in drying. Flower showy. 



2. HYPOPITYS, Dill. Stem several-flowered ; the upper floicer commonly with 

 5 petals and 10 stamens ; the others irith 4 petals and 8 stamens : sepals an ninny 

 as the petals : anthers openinrj by 2 unequal ralres ; the smaller one erect : sti/le, 

 longer than the oi-ary. 



2. M. Hypopitys, L. Shady woods. August. Stems 4'- 8' high, 

 pubescent, reddish. 



ORDER 80. DIAPENSIACE^E. (DIAPENSIA FAMILY.) 



Flowers regular, perfect. Calyx and corolla pentamerous, imbri- 

 cate, hypogynous. Stamens fertile, or those opposite the petals sterile. 

 Ovary 3-cellecl, ovules anatropous. Placenta 1 central. Style single. 

 Capsule 3-valved. Embryo small, in fleshy albumen. Low herba- 

 ceous or shrubby plants, with simple alternate exstipulate leaves, and 

 single or racemose flowers. 



