228 DICOTYLEDONOUS PLANTS. 



at base. Anthers 2-celled, with two obtuse horns at their 

 base. (Don.) Capsule 5-celled, 5-valved. Seeds numerous, 

 surrounded by a membrane. Decandria. Monogynia. 



* Scapt many-Jhicered. HTPOPITHTS. Nutt. 



1. M. lanuginosa Mick. : scape bearing the flowers in a spike ; bracts 

 and flowers woolly. Hypopitliys lanuginosa Nutt. 



HAB. Roots of trees. Can. to Car. Aug. It- Scape 46 

 inches long. Leaves merely scales, lanceolate, obtuse, crowded 

 at base and a little hairy. Flowers white, in a terminal spike, on 

 short peduncles. Whole plant of a clear white, turning black by 

 decay or by drying. Tobacco-pipe. 



2. M. hypopithys Linn. : scape bearing the flowers in a spike ; scales 

 and flowers smooth externally ; lateral flowers with 8 stamens. Hy- 

 popithys europea Nutt. 



HAB. Roots of trees. Can. Penn. andN. Car. June, July. If. 

 The whole plant is of a brownish-yellow colour. There is 

 still some doubt whether this is a plant of the Northern States ; 

 what has been called by that name here being merely a smooth 

 variety of the preceding. According to Sprengel, the Monotropsis 

 odorata of Elliott is identical with this species. 



** Scope 1'jlowcred. MONOTROPA. Nutt. 



3. M. uniflora Linn : scape straight, elongated, 1-flowered ; flowers 

 with 10 stamens, erect, or cernuous. 



HAB, Shady woods. June. U. Scape 58 inches. Flowers 

 large, mostly nodding, but sometimes erect. Whole plant white. 



3. PTEROSPORA. Nutt. 



Calyx 5-parted. Corol monopetalous, ovate; margin 5- 

 toothed, reflexed. Anthers excentrically peltate, 2-celled, ad- 

 nate to the filaments by the margin, bisetose. Capsule 5-cell- 

 ed, imperfectly 5-valved ; dissepiments from the middle of the 

 valves ; septa and valve* uniting towards the base, and coa- 

 lescing with the receptacular axis ; receptacle 5-lobed. Seeds 

 very numerous and minute, each furnished with a terminal 

 wing. Decandria. Monogynia. 



P. andromeda Nutt. 



HAB. Clay soils. Can. Banks of the Seneca Lake. Gray; and 

 near Albany, N.Y. July. 0. Plant covered with brownish viscid 

 hairs. Stem 1 1-22 feet high, simple, brownish-red or purple, 

 clothed at base with lanceolate bracts. Flowers very numerous, 

 irregularly disposed in a long terminal raceme, red and white. 

 Peduncles filiform, nodding, longer than the flowers. 



SUBCLASS III. COROLLIFLOILE. 



Petals united in the form of a hypogyrious corol, which is 

 not attached to the calyx. Stamens inserted into the corol. 



