Class. X. Order I. 105 



mostly entire, pubescent and glaucous underneath. The flow- 

 ers are in umbels on the ends of the twigs. The corolla con- 

 sists of three unequal petals, the largest of which is broad, and 

 divided into three segments or lobe, at the -end, the other two 

 are equal, lanceolate, and obtuse. Low grounds. Maiden, 

 Cambridge. May. 



127. CLETHRA, 

 CLETHRA ALNIFOLIA. L. Mder leaved Clethra. 



Leaves obovate, serrate, pubescent underneath ; 

 racemes simple, bracted. Willd. 



A tall, elegant, white flowering shrub. Leaves about thres 

 inches long, and from one to two broad, inversely ovate, serrate, 

 downy underneath in one variety, glabrous in another. Flowers 

 in long racemes or loose spikes with downy stalks. Grows 

 in low soils, Cambridgeport. -July, August. 



128. PYROLA. 

 PYROLA KOTUNDIFOLIA. L. Round leaved Winter green* 



Stamens ascending; pistil declined, raceme ma- 

 ny flowered. Sm. 



A very common species. Root creeping, putting up erect 

 or ascending, angular stems. Leaves petioled, almost round, 

 scarcely serrate, smooth, spreading. Flowers in a long cluster 

 terminating the stem, white, fragrant. The stamens are uni- 

 formly bent upward, and the style downward. Found every 

 where in woods. June, 



PYROLA SECUNDA. L. One sided Winter green. 



Flowers racemed, leaning one way. L. 



Less frequent than the former, but resembling it in habit. 

 Stem as in the last. Leaves petioled, spreading, ovate, acute, 

 (not obtuse like the last,) minutely serrate, smooth. The flow- 

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