266 



DESCRIPTION OF THE PLATES 



of a carpel in the direction of the shorter diameter; magnified. Fig. 6. The embrjo detached 

 and highly magnified. 



PLATE XXVIII. APIASTRUM AN GU ST IF LIU M.— Page 71. 



AN ENTIRE PLANT OP THE NATURAL SIZE. 



Fig. 1, A flower; magnified. Fig. 2. A petal, (incorrectly drawn.) Fig. 3. A stamen; more 

 magnified." Fig. 4.' ATruit; pretty highly magnified. Fig. 5. The carpophore, with one of the 

 carpels attaclied. Fig. 6. Transverse section of the fruit; highly magnified. Fig. 7. A seed; 

 and Fig. 8, the nucleus detached; much magnified. 



PLATE XXIX. LONICERA SUBSPICATA.— Page 71 



PART OF THE PLANT OF THE NATURAL SIZE. 



Fig. 1. A flower; "enlarged. Fig. 2. A berry; equally enlarged. 



PLATE XXX. DICORIA CANESCENS.— Page 87 



PART OF THE PLANT OF THE NATURAL SIZE. 



Fig. 1. A staminate flower; considerably magnified. Fig. 2. The same, w^ith the corolla laid 

 open, showing the monadelphous filaments deprived of their anthers. Fig. 3. A grain of pollen; 

 highly magnified. Fig. 4. Abortive style of the staminate flower. Fig. 5. A head of flowers; 

 the two large interior involucral scales nearly concealing the flowers; enlarged. Fig. 6. A ripe 

 achenium; more enlarged. Fig. 7. One of the scales of the receptacle; magnified. 



PLATE XXXI. TUCKERMANIA MARITIMA.— Page 92. 



UPPER PART OF THE PLANT OF THE NATURAL SIZE. 



Fig. 1. A ray-flower; enlarged. Fig. 2. A disk-flower; also enlarged. Fig. 3. Two of the 

 stamens, their filaments united by one edge; more highly magnified. Fig. 4. The pistil; equally 

 magnified. Fig. 5. An achenium; enlarged. Fig. 6. Cross section of the same; more enlarged. 



PLATE XXXII. ACARPHJEA ARTEMISR^FOLIA.— Page 95. 



THE ENTIRE PLANT OF THE NATURAL SIZE 



Fig. 1. A flower; magnified. 



PLATE XXXIIL ACTINOLEPIS MULTICAULIS.— Page 96 



AN ENTIRE PLANT OP THE NATURAL SIZE. 



4 



Fig. 1. A ray-flower J magnified. Fig. 2. A disk-flower; also magnified 



PLATE XXXIY. RAFINESQUIA CALTFORNICA.— Page 106. 



■ ■ 



UPPER PART OF THE PLANT OP THE NATURAL SIZE. 



Fig. 1. A flower; enlarged. Fig. 2. Grains of pollen; highly magnified. Fig. 3. Achenia; 

 magnified; a, an interior one; 6, an exterior one. 



t. 



i- 



1 



J 



