354 INDEX. 



Malaxis, the genus of 183 



Mallow (Malva), how known 146 



and 

 . 144 

 128 

 145 

 168 

 172 

 175 

 117 

 53 



Malvacece, natural order— some of its more splendid 



remarkahle productions ... 

 Marjoram (Origanum), the genus of 

 Marsh-mallow (AlthsBa), the generic trait 

 Marsh Fleabane (Coriyza), the genus of 

 Marygold African (Tagetes^), the genus of 



common (Calendula), the genus of . 



Mfy apple (Podophyllum), the genus and uses 

 Me-idow-gra^s (Poa), how known 

 Medullary Shealh, where situated; its green color, and ap- 

 pearance when magnified .... 266, 267 

 — — — spiral vessels situated in its cellular substance — the 



mode by which the sap may be propelled by them 267 

 the only vessels endowed with contracti- 

 lity 268 



the opinions of authors on their functions ib. 



Mezereon (Daphne), how known from Dirca ... 97 

 Microstylis (Malaxis species), the genus of . . . 184 

 Mikania, the genus of ....... 167 



Milkwort (Polygala), the genus and some of the principal 



species 150, 151 



Milk-vetch (Astrasalus), the genus of .... 155 



Millfoii (Achillea)," the genus of 172 



Misseltoe (Viscum), the genus of . . . . ■ 282 

 Monadelphia Class, its character ..... 141 

 Monanuria Class. The character of genera and species 



of plants .43 



Monarda (Mountain Balm), its genus . . . _ . 48 



Monkey-flower (Mimulus), the genus and native species . 132 

 Moncecia Class, its naiurai and artificial character . 187 



Mouotropa, the genus of 106 



Moonwort. Honesty (Lunaria), the genus of . . 138 



Mountain Ash (Sorbus), allied to Crataegus . . .113 

 Mountain Mint (Pycnanthemnm), the genus . . 127 



Mouse-ear Chickvveed (Cerastium), the genus . . 109 



Mosses, the order of ....... 213 



Morel (Phallus), the genus of 216 



Mulberry tree (Morus), the genus of .... 191 

 Mushroom tribe (Funt;i) . . . , . . . 215 

 Mustard (Sinapis), the generic character — how distin- 

 guished from the Cabbage 140 



N. 



Nesessaria order, of the class Syngenesia . . 175 



PJelumbium or Large Pond Lily, the genus . . 123 



Neottia or Spiranthes, the genus of . • 182 



