28 



OUR NATIVE ORCHIDS 



Lip with two or three distinct 

 teeth. 



Spur-hke sac shorter than 

 the ovary, long bracts be- 

 neath the flowers. 



Spur slender, curved, longer 

 than the ovary. 



Lip with a tooth on each side of 

 base, and a tubercle at the 

 middle. 



Lip deeply fringed. 



Spur half as long as ovary, 

 flowers yellow. 



Spur longer than ovary, 

 Flowers bright yellow. 

 Flowers white. 



Lip three-parted. 



Segments of lip narrow, deep 

 fringe of a few threads, 

 flowers greenish jellow. 



Segments of lip broad, fan- 

 shaped and fringed to the 

 middle, flowers white. 



Segments fringed about one- 

 third or less, flowers lilac. 



Large, showy raceme, lip 

 from half an inch to an 

 inch broad. 



Smaller, and more slender 

 wand, lip quarter to half 

 an inch broad. 



Segments of the 1 i p cut- 

 toothed, flowers violet 

 purple. 



8. Long-bracted Orchis. 



9. Small Green Wood Orchis. 



10. Tubercled Orchis. 



II. Crested Yellow Orchis. 



12. Yellow Fringed Orchis. 



13. White Fringed Orchis. 



14. Ragged Oichis. 



15. Prairie White Fringed Orchis. 



16. Large Purple Fringed Orchis. 



17. Smaller Purple Fringed Orchis. 



18. Fringeless Purple Orchis. 



