560 FLORA OF McNAB's ISLAND, HALIFAX, N. S.— BARBOUR. 



Ericaceae. 



Moneses uniflora. One-flowered pyrola. — This peculiar 

 flower, which is the last I have to offer any. special notes on, 

 appealed to me much, on account of its prominent anthers, and 

 the apparent want of conformity in the arrangement of its 

 stamens ; so much so, that I looked up different floras to see if 

 I could find out what was the most usual arrangement of the 

 whorl. I could not find anything on this subject, so I have 

 undertakeii to try and determine what is the most usual arrange- 

 ment, and in this case, since I have a number of figures to deal 

 with, I will say only that over 1,000 specimens were examined, 

 and the following are the conclusions I arrived at: — (1) 

 that the stamens are in one whorl; (3) the corolla may be 

 complete or incomplete — that is, with five petals or less. 



Co'nsidering now the flowers from the view that the stamens 

 are ten or less, I want you to look at them as regular or 

 irregular. Let us first consider the regular flowers: — 



(a) Regular flowers, with corolla complete. By far the 

 larger majority have the following arrangement of stamens in 

 the whorl, 3, 2, 2, 2, 1. The next commonest is a variation 

 on this, 3, 2, 2, 1, 2. Then come, some little way behind, 

 another arrangeme'nt — 3, 1, 2, 3, 1, and its variant, 3, 1, 3, 

 2, 1. Then in order we get 2, 2, 2, 2, 2, and far behind, and 

 in only a few instances, comparatively speaking, 3, 2, 1, 1, 2, 1 ; 

 3,3,3,1; 3, 1,3, 1,1, 2. 



(b) Regular flowers with incomplete corolla. — The above 

 arrangements hold good because only one or two flowers were 

 met with i'n which the corolla was incomplete, and they pos- 

 sessed only four pet,als. 



Let us now consider the irregular flowers : — 



(c) Irregular flowers with corolla complete. — The usual 

 arrangement was for one of the last pairs of stamens to be 

 absent, if we ccnsider the arrangement to be 3, 2, 2, 2, 1 — 



