WINTER GREEN. 17 
The genus Pyrola belongs to the class De- 
candria, and order Monogynia. It ranks among 
2, Style straight, stigma peltate. 
P. secunda, P. uniflora, &c. 
3. Style incrassated, calya five leaved. 
P. maculata. 
_ 4. Style immersed, calyx five toothed. 
~~ P, umbellata. 
If we go farther and take into view the direction and form of the 
filaments, and the other parts of flower and fruit, with their various 
combinations ;. we shall have nearly as many genera as there are now 
species, since it is well known that many of the most important spe- 
cific distinctions in this genus are taken from the fructification. 
On these accounts there can be no doubt that the genus Pyrola 
had better remain entire. In habit it is certainly one of the most 
natural genera we possess, All the species are humble evergreens, 
growing in woods, with creeping roots, ascending stems, and nodding 
flowers. All of them have their leaves in irregular whorls, flower with 
reversed anthers, and retain their style until the fruit is ripe. In 
inflorescence, one is solitary, two somewhat corymbed, and the rest 
spiked. ‘The leaves of P. secunda, umbellata and maculata are usu- 
ally in two or more whorls; those of most others in one radical 
whorl or aggregate. One species is said to be leafless. _ Ape 
In the dissections accompanying the figure of P. Pa Wig I a 
endeavoured to represent the evident gradation of the stvle from the 
-species in which it is longest, to that in which it is shortest. In the 
_same plate are added some of the varieties of the calyx and stamens. 
. “The following remark of Sir James Edward Smith, the learned 
president of the Linnzan society, is from Rees’ Cycloperia, rt. 
_ Pyroxa. “ We can by no means assent to the establishment of that 
able writer’s (Pursh’s) Genus Chimaphila, there being surely no di- 
versity of habit to support it, nor any character but a difference in 
the length of the style ; which the other species of Pyrola shew to af- 
ford admirable specific, but no generic distinctions. 
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