204 



INDEX OF COMMON NAMES. 



o. 



One-flowered Broom-rape . 

 One-sided Penlstemon 

 Oswego Tea 



P. 



Palmer's Onion . 

 Parrot-headed Pitcher Plant 

 Pinnatifid Spleen-wort 

 Pointed Erigeron 

 Poor Robin's Plantain 



R. 



Ram's-head Moccasin-flower . II. 25 

 Rattlesnake Grape-fern . . II. 145 

 Red-berried Elder . . .II. 85 

 Red-flowered Trumpet Leaf — Wal- 

 ler's Sarracenia ... I. 37 

 Rocky Mountain Iris ... I. loi 



S. 



Sand-paper Star- wort . .1. 13 

 Scarlet Trumpet Honeysuckle . I. iSi 

 Scarlet California Hyacinth — Fire- 

 cracker Flower . . .II. 37 

 Scott's Spleen-wort . . . I. 113 

 Sensitive Fern . , . .1. 17 

 Shield-like Lip-fern . . . II. 1 13 

 Sickle-leaved Polypod, or Liquorice 



Fern I. 193 



Sierra Nevada Shield Fern . . I. 129 



Silky Townsend Flower . . I. 189 



Small-flowered Wild Sensitive Pea II. 137 



Snow on the Mountain 



Spotted Crane's-bill . 



Spotted Touch-me-not, or Snap-w 



Spreading Aster . 



Spring Iris .... 



Star Cucumber . 



Stemless Moccasin Flower . 



Stenosiphon, The 



Sweet-scented Water Lily . 



Sweet Shield Fern 



Tall Anemone — Thimble Weed 

 Ternate Grape-fern 

 Three-leaved Indian Turnip 

 Torrey's Solanum 

 Tri-colored Gilia 

 True Maiden-hair Fern 

 Trumpet-flower . 

 Turtle-head 



V. 



