ORCHIDS 



157 



from the Tertiary age, when plants that are now 

 found only in fossil form on the pine barrens were 

 the progenitors of the modern orchid. Possibly the 

 straight ovary is a relic of an earlier, simpler form 

 of orchid, and the twisted ovary a concession to the 

 manners of insects of later days, and possibly it is 

 because the insects are not well adapted to the over- 

 reaching spur, that the plant is so rare." 



This southern specimen, it will be noted, has no 

 beard nor markings upon either the upper or the 

 lower petal, so that neither the one nor the other 

 may be called "the lip." 



Let us now examine the northern orchid, the 

 other exception to the rule above stated. 



Grass Pink — Calopogon pulchelhis 

 July 



An orchid very common in bogs and moist places 

 throughout our region, with a straight ovaiy, and 

 the column curving dotmi- 

 ivard with the stigma on the 

 upper surface and the lidded 

 anther-cells underneath. But 

 in the Calopogon the upper 

 petal displays a tufty beard 

 of yellow and magenta- 



, . . DIAGRAM OF CALOPO- 



crmison — showmg, m spite gon 



