MONOPETALOUS EXOGENOUS PLANTS. 369 



SuB-OKDER III. Monotropa. Indian-Pipe Family. 



Calyx o[ 4-5 scale-like or bract-like sepals; corolla 5-lobed 

 or 5-petalous ; seeds very minute. — Fleshy scaly herbs, para- 

 sitic on roots, and destitute of green foliage. 



Corolla i-b-petalous. Anthers kidney-shaped, opening across the top. . .Monotropa. 



VACCINIUM, L. Huckleberry; Blueberry. 



Corolla cylindrical, urceolate, or campanulate, 4-5 toothed 

 or purted; stamens 8-10; anthers awnless, or 2-awned on 

 the back ; the cells prolonged into a tube, and opening at 

 the apex; berry 4-5-celled, or by false partitions 8-10- 

 celled, many-seeded. — Shrubs; floiuers nodding, solitary, 

 clustered, or racemed, white or reddish ; i^^dicels 2-bracted. 



Batodendron. Ovary more or less 10-celled by false 

 jmrtitions; corolla bell-shaped, 6-cleft; stamens 10, hairy; 

 anthers 2-atvned on the bach; floiuers in leafy race7nes, 

 seemingly axillary. 



V. ARBOREUM, Michx. Arboresceut, ^moothish; leaves 

 evergreen, oval or obovate, shining above, the veins beneath 

 more or less pubescent ; corolla large, angled, white ; anthers 

 included ; berry globose, black. Stem 8°-15° high ; floiuers 

 very numerous; berry mealy, ripening in the winter. 



ANDKOMEDA, L. 



Calyx deeply 5-parted, valvate in the early bud ; corolla 

 5-toothed ; stainens 10; anthe7'-cells o'peumg by a terminal 

 pore ; capsule 5-cellecl, 5-valved, many-seeded ; seeds pendu- 

 lous or spreading. — Shrubs; leaves alternate; flowers in 

 lateral and terminal racemes or clusters, nodding. 



Flowers in umbel dusters / capsule more or less ribbed at the sutures, the ribs sepa' 



rating at maturity. 



Corolla ovate, cylindrical, or somewhat bell-shaped; anthers or filaments owned; 



capsule ovate, truncate; shrubs smooth. 



A. Mariana, L. Corolla large (^' long), cylindrical, 



16* 



