General Key to the Families 1 1 



TRIBE 



IV. SPIRANTHES. Richards. 



i. S. Romanzoffiana. Cham. Hooded Ladies' Tresses. 

 V. EPIPACTIS. (Haller.) Boehm. 



1. E. decipiens. (Hook.) Ames. Stout Rattlesnake 



'Plantain. 



2. E. repens. (L.) Crantz. Small Rattlesnake Plan- 



tain. 

 VI. LISTERA. R. Br. 



1. L. cordata. (L.) R. Br. Heart-leaved Twayblade. 



2. L. convallarioides. (Sw.) Torr. Broad-lipped Tway- 



blade. 



TRIBE EPIDENDRE^: 



VII. CORALLORHIZA. (Haller.) R. Br. 



1. C. trifida. Chatelain. Early Coral Root. 



2. C. maculata. Raf. Spotted Coral Root. 



3. C. striata. Lindl. Striped Coral Root. 



4. C. Mertensiana. Bong. Spurred Coral Root. 

 VIII. CALYPSO. Salisb. 



i. C. bulbosa. (L.) Oakes. Calypso. 



CLASS II. DICOTYLEDONE.E 

 Subclass I. Archichlamydecz 



ORDER XL SALICALES 

 XIX. SALICACE^:. WILLOW FAMILY 



Trees or shrubs, the wood soft and light, bark bitter; leaves 

 alternate undivided; flowers of both kinds in catkins, one to each 

 bract, without perianth; fruit a pod bearing numerous seeds fur- 

 nished with long silky down. 



I. SALIX. (Tourn.) L. 



1. S. Candida. Flugge. Hoary Willow. 



2. S. Barclayi. Anders. Barclay's Willow. 



3. S. Barrattiana. Barratfs Willow. 



