EXPLANATION OF THE PLATES. 
167 
Plate XXL DAMASONIUM CALIFORNICUM.— Page 142. 
AN ENTIRE PLANT OF THE NATURAL SIZE. 
1. Plan of the flower. 
2. A flower ; somewhat magnified. 
3. One of the sepals ; also magnified. 
4. An anther ; more magnified. 
5. A pistil, laid open to show the position of the ovule. 
6. A ripe aclienium ; considerably magnified. 
7. Seed ; still more magnified. 
Plate XXII. SCOLIOPUS BIGELOVII.— Page 145. 
A PLANT OF THE NATURAL SIZE. 
1. A separate flower. 
2. A sepal, with a stamen, seen anteriorly. 
3. A petal. * 
4. Anther, with part of the filament, posterior view. 
5. Pistil, with the ovary divided transversely ; a petal and a stamen. 
6. Portion of the ovary divided transversely and vertically. 
7. An ovule. The details, except figure 1, more or less magnified. 
Plate XXIII. STROPHOLIRION CALIFORNICUM.— Page 14!). 
AN ENTIRE PLANT OF THE NATURAL SIZE. 
1. 'I he perianth laid open ; moderately enlarged. 
2. The pistil; more enlarged. 
3. A ripe pod, showing the dehiscence. 
4. One of the carpels of the same, laid open and showing the seed. 
5. Transverse section of a pod. 
6. A seed ; considerably magnified. 
7 and 8 should be erased. 
Plate XXIV. ODONTOSTOMUM HARTWEGII.— Page 150. 
AN ENTIRE TLANT (EXCLUSIVE OF THE ROOT) OF THE NATURAL SIZE. 
1. The unopened perianth ; magnified. 
2. Flower laid open ; equally magnified. 
3. A stamen ; more magnified. 
4. Part of the ovary ; longitudinally divided and magnified. 
5. An ovule; also magnified. 
6. Transverse section of an ovary. 
7. Immature fruit. 
Plate XXV. ©CORALLORHIZA STRIATA.— Page 152. 
A PLANT OF THE NATURAL SIZE, IN FLOWER ANT) FRUIT. 
1. A flower ; moderately enlarged. 
2. Lip of the same ; magnified. 
3. The column ; equally magnified. 
Incorrectly named C. Macrtei on the plate. 
