563 



Alliance 13. Orchidales. — The Orchidal Alliance. 



52. Orchidaceae, Oichids. 

 Alliance 14. Xyridales. — The Xyridal Alliance. 

 Alliance 15. Juncales. — The Juncal Alliance. 



58. Juncaceae, Eushes. — Gen. Luzula, Junciis, Narthecium. 



59. Orontiaceae, Orontiads.— Gen. Acorus. " 

 Alliance 16. Liliales. — The Lilial Alliance. 



61. Melanthaceae, Melanths. — Gen. Tofieldia, Colchicuni. 



62. Liliaceae, Lilyworts. — Gen. Tulipa. Gagea. Lloydia. 

 Fritillaria. Lilium. Allium. Scilla. Ornithogalum. 

 Muscari. Agraphis. Asparagus. Polygonatum. Con- 

 vallaria. Ruscus. 



Alliance 17. Alismales. — The Alismal Alliance. 



64. Butomaceae, Butomads. — Gen. Butomus. 



65. Alismaceee, Alismads. — Gen. Alisma. Sagittaria. Da- 

 masonium. 



66. Juncaginaceae, Arrow-grasses.-Gen. Triglochiu. Scheuch- 



zeria. Ruppia. Potamogeton. 



Class 5. DiCTYOGENS. 



Alliances .? (None indicated in a class so small). 

 68. Dioscoreaceae, Yams. — Gen. Tamus. 

 71. Trilliaceae, Parids. — Gen. Paris. 



Class 6. Gymnogens. 



Alliances ? (None indicated). 



74. Pinaceae, Conifers. — Gen. Pinus. Junipeius. 



75. Taxaceae, Taxads. — Gen. Taxus. 



Class 7. EXOGENS. 



Alliance 18. Amen tales. — The Amental Alliance. 



78. Betulaceae, Birchworts. — Gen. Betula. Alnus. 



80. Salicaceae, Willow worts. — Gen. Salix. Populus. 



81. Myricaceae, Galeworts. — Gen. Myrica. 



82. Elaeagnaceae, Oleasters.- -Gen. Hippophae. 

 Alliance 19. Urticales. — The Urtical Alliance. 



84. Urticaceae, Nettleworts. — Gen. Urtica. Pavietaria. 



85. Ceratophyllaceae, Hornworts. — Gen. Ceratophyllum. 



86. Cannabinaceae, Hempworts. — Gen. Humulus. 



