L'*.)0 DIAI'EXSIACEiE. (niAI'KNSIA FAMILY.) 



Suborder IV. MOlMOTKOFE.li:. Tin. Indian-Pii'k Family. 



19. SCHWEINITZIA, Kll. 



Calvx of 5 sepnls, persistent. Corolla piT.si.steut, Lell-sliaped, 5-lobed. Sta- 

 meus 10: aiitliens shorter thau tiie tilaineuts, fixed uear the apex, awnless ; 

 the cells opening at the apex. IStjle sliort and thick : stigma large, 5-angled. 

 Capsule ovoid, 5-celled Seeds very numerous. — Stem low (3'-4'), siiiootii, 

 brownisli, sraly. S])ike several-flowered. Flowers odorous. 



1. S. odorata, Fll. stem 3' -4' liigli, 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, ReynoldsiaB, Gray. Scales ovate and imbricated, or narrower 

 and scaticred ; llowuis racemose ; sepals much shorter thau the white corolla. 

 — Dry sandy thickets, near St. Augustine. Nov. 



20. MONOTROPA, L. Indian-Pipe. 



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

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

 Stigma broad, 4 - 5-rayed. Capsule ovoid, 8 - 1 0-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. MoNOTHOi'A, Xutt. — Stem \-floicered : srpnis 2-4: petals 5 : anthers 

 opfiiiiif/ hij 2 chinks: sltjle short and thick. 



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

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



§ 2. IIvpopiTYS, Dill. — Stem sereraJ-flowered ; the upper flower commonly with 

 f> petals and \0 stamens : the others u-ith 4 petals and 8 stamens : sepals as many 

 as the petals : anthers openinfj hi/ 2 unequal valves ; the smaller one erect : style 

 longer than the ovary. 



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

 pubescent, reddish. 



Order 80. DIAPENSIACEiE. (Diapensia Family.) 



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

 cate, h\T:)ogynous. Stamens fertile, or those opposite the petals sterile. 

 Ovary 3-celled, ovules anatropou.s. Placentae central. Style single. 

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

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

 single or racemose flowers. 



