526 EXPLANATION OF PLATES. 



PLATE 87. AscLEPiAS verticillata (page 1 2.3). Fig. 1 . a flower somewhat magnified : 

 fig. 2. a follicle of the natural size. 



88. AcERATEs viRiDiFLORA (page 124). Broad and narrow-leaved forms; with 



the ripe f(jllicles ; all of the natural size. 



89. Fraxinus Amkricana (incorrectly named F. concolor in the plate) (page 



125) in fruit. 



90. Fraxinus pubescens ? (incorrectly named F. acuminata in the plate) (page 



126). 



91. Aristolochia Serpentaria (page 130). Fig. 1. capsule, natural size : 



fig. 2. transverse section of the same, a little magnified : fig. 3. capsule 

 with one of the cells laid open : fig. 4. a seed. 



92. Asarum Canadense (page 131). Fig. 1. a flower : fig. 2. the same cut 



through loiigiludinally, both natural size : fig. 3. a stamen : fig. 4. the 

 united styles : fig. 5. transverse section of the capsule ; the last three 

 magnified. 



■93. Amaranthus PTjMit.us {page 144). Fig. 1. a fertile flower, natural size : 

 fiig. 2, the same magnified : fig. 3. capsule, showing the transverse 

 dehiscence : fig. 4. a seed. 



94. Phytolacca decandra (page 157). Fig. 1. a raceme of the fruit : fiig. 2. 



a flower magnified : fig. 3. stamen. 



95. Nyssa multiflora (page 161) in fruit. Fig. 1. a fascicle of staminate 



flowers, natural size : fig. 2. a staminate flower deprived of one sepal, 

 magnified : fiig. 3. a fascicle of pistillate flowers, natural size : fig. 4. a 

 pistillate flower, magnified '.fig- 5. longitudinal section of the ovary. 



96. Ulmus racemosa (page 166). Fig. 1. a branch in ]ea.i : fig. 2. flowers of 



the natural size : fig. 3. fruit : fig. 4. corky bark of a branch. 



97. Saururus cernuus (page 168), with a separate flower a little magnified. 



98. Podostemum (Lacis) ceratophylltjm (page 171). Fig. 1. a flower 



magnified : fig. 2. stamens, showing their united filaments : fig. 3. 

 capsule : fig. 4. the same magnified. 

 Myriophvllum ambiguum (vol. 1. page 243). Fig. 1. a flower : fig. 2. 

 the same seen from above, and expanded : fiigs. 3. 4. stamens : fig. 5. 

 capsule : fiig. 6. transverse section of the same : all magnified. 



99. Euphorbia corollata (page 175). Fig. 1. staminate flower : fig. 2. 



pistillate flower : fig. 3. fruit, with one of the carpels laid open. 



100. Carva tomentosa, var. inlegrifolia (page lfc2) in fruit. 



101. Carva glabra (page 182) in fruit. 



102. OsTRVA ViRGiNicA (page 185) in fruit. Fig. a. fertile ament. 



103. Carpinus Americana (page 18.'!)) in fruit, lig. 1. involucral scale and 



nut : fiig. 2. the nut separate : all natural size. 



104. QuERcus Phellos (page 187) in fruit. 

 1G5. QuERcus nigra (page 188) in fruit. 



