638 EXPLANATION OF PLATES. 



PLATE 125, Udora Canadensis (page 264). Fig. 1. whorl of leaves : ^g. 2. perfect 



flower : ^g. 3. stigma : Jig. 4. transverse section of the ovary : Jig. 5. 



longitudinal section of the ovary ; all magnified : Jig. 6. an ovule, 



showing primine and secundine : Jig. 7. nucleus and part of the secundine: 



Jig. 8. part of the primine ; the last three highly magnified. 



126. CoRALLORHiZA ODONTORHiZA (pigc 269). Fi^. I . front view of the flowcri 



fig. 2. side view of the same ; both magnified. 



CoRALLORHizA MHLTiFLOEA (page 269). Fig. 1. front view of the flower : 

 Jig. 2. side view of the same : both magnified- 



1 27. Aplectrum hyemale (page 270) of the natural size, 



r 128. Spiranthes gracilis (page 282). The right hand figure. Fig. a. lip, 



< <fe magnified. 



( 129. Spiranthes cernua (page 283) natural size. 



130. Smilacina racemosa (page 298) and a cluster of the fruit. 



131> Pontederia cordata (page 312). Fig. I. spike of fruit : Jig. 2. fruit 

 magnified : Jig. 3. transverse section of the same, showing the fertile and 

 two abortive cells : Jig. 4. longitudinal section of the seed, considerably 

 magnified. 



132. Heteranthera reniformis (page 313). Fig. 1. spathe natural size :Jig. 



2, a flower : Jig. 3. the same with the perianth removed : Jig. 4. capsule, 

 natural size : Jig. 5. the same laid oj)en and magnified : Jig. 6. transverse 

 section of the capsule : Jig. 7. seed, magnified- 



133. Heteranthera (Scuollera) graminea (page 313). Fig. I. Rower : Jig, 



2. pistil : Jig. 3. transverse section of the ovary : Jig. 4. ovary laid open : 

 all magnihed. 



134. Melanthium Virginicdm (page 316). Fig. a. capsule, natural size. 



135. Cyperjjs Nuttallii (page 339). Fig. 1. a spikelet : Jig. 2. portion of the 



racliilla : Jig. 3. a scale ; Jig. 4. caryopsis, with the persistent style and 

 stamens : Jig. 5. transverse section of the caryopsis ; all magnified. 



136. Cyperus strigosus (page .340), Fig. 1. scale of the spikelet '. Jig. 2. 



achenium : Jig. 3. seed (the artist has improperly placed a style on this !) : 

 all magnified. 



137. Cyperus repens (page 341). Fig. 1. a spikelet : Jig. 2. achenium : both 



magnified. 



138. Cyperus Grayi (page 342). Fig. 1. spikelet : Jig. 2. scale : Jig. 3. portion 



of the winged racliilla : Jig. 4. achenium, siamens and style : Jig. 5, 

 transverse section of the achenium : all magnified. 



139. SciRPUs DEBiLis (page 352). Fig. 1. a spike : Jig. 2. scale : Jig. 3. flower, 



with the scale removed : fig. 4. style : fig. 5, transverse section of the 

 achenium : all magnified. 



140. Eriophorum alpinum (page 357). Fig. 1. spike : fig. 2. separate flower, 



both somewhat magnified : fig. 3. flower, considerably magnified : fig. 4  

 transverse section of the achenium. 



