• 



DESCRIPTION OF THE PLATES. 



269 



I Fig. 6. Transverse section of tlie same; more enlarged. Fig. 7. The emLrjo detached. Fig 



' 8. Side view of the same. 



PLATE XLVIL A. SELINO CARPUS ANGUSTIFOLIUS.— Page 170. 



AN ENTIRE PLANT OF THE NATURAL SIZE. 



Fig, 1. The perianth laid open; enlarged. Fig. 2. The fruit; also enlarged."* Fig. 3. Lon- 

 gitudinal section of the same. Fig. 4. Transverse section of the same; more enlarged. Fig. 

 5. The embryo detached; equally magnified. Fig. 6. Side view of the same. 



PLATE XLVIL B. PENTACROPHYS WRIGHTIL— Page 170. 



A PORTION OF THE PLANT OF THE NATURAL SIZE. 



Fig. 1. A transversely divided fruit from a precociously fructified unexpanded flower; 

 enlarged. Fig. 2. A fruit from an expanded flower; equally enlarged. Fig. 3. The same; of 

 the natural size. 



PLATE XLVIIL MIRABILIS CALIFORNICA.— Page. 169. 



UPPER PART OF THE PLANT OF THE NATURAL SIZE. 



Fig. 1. A flower, with its involucre; enlarged. Fig. 2. The same, laid open. Fig. 3. A 

 fruit, about four times the natural size. 



PLATE XLIX. SIMMONDSIA CALIFORNICA.— Page 202. 



A. A FLOWERING BRANCH OF THE MALE PLANT. B. A BRANCH OF THE FEMALE PLANT 



Fig. 1. A male flower; enlarged. Fig. 3. The 



wi 



Fig. 2. 



An anther; more enlarged. Fig. 4. The ovary; magnified and longitudinally divided. Fig. 

 5. An ovule, more highly magnified. Fig. 6. Longitudinal section of the same. Fig. 7. A 

 seed, somewhat enlarged. Fig. 8. Longitudinal section of the same. Fig. 9. Transverse 

 section of the same. 



PLATE L. CELTIS PALLIDA. i— Page 203, 



A. A FLOWERING BRANCH OF THE NATURAL SIZE. B. A FRUCTIFEROUS BRANCH. 



Fig. 1. Plan of the flower. Fig. 2. An expanded sterile flower; magnified. Fig. 3. A 



stamen from the same. Fig. 4. A cluster of flowers, the terminal perfect; magnified. Fig. 5. 



Pistil, with the ovary longitudinally divided. Fig. 6. A droop, with the upper half of the 



sarcocorp cut away; enlarged. Fig. 7. Transverse section of a seed. Fig. 8. The embryo 

 detached. 



PLATE LI. QUERCUS ACUTIDENS.— Page 207. 



A BRANCH WITH FRUIT; OF THE NATURAL SIZE. 



PLATE LII. PILOSTYLES THURBERL— Page 



THE PLANTS, CONSISTING OF SINGLE FLOWERS, PARASITIC ON D. 



SCHOTTII 



i'lg. 1. Magnified longitudinal section of a branch of the Dalea, showing the mode of attach- 

 ment of the parasite. Fig. 2. A fertile flower; magnified. Fig. 3. Transverse section of the 



■ 



- 



^ Named C. cinerea on the plate. 



