SYSTEMATIC ARRANGEMENT. ^33 



Acrogens. 



Group 5. Glumose. 



The Grass Tribe (Graminacese), Plate XXII. 1. 

 The Sedge Tribe (Cyperaceae), Plate XXII. 2. 



Class IV. RHIZANTHS. 



There are no plants of this class either cultivated in 

 gardens, or wild in the North of Europe. 



Class V. ACROGENS. 



Neither subclasses nor groups are distinguished in 

 this class ; the commoner natural orders are — 



a. The Fern Tribe (Filicales), Plate XXIII. l. 

 The Club-moss Tribe (Lycopodiacea^), Plate 



XXIII. 2. 



The Moss Tribe (Bryacese or Musci), Plate 



XXIV. 1. 



The Jungermannia Tribe (Jungermanniaceaj), 



Plate XXIV. 2. 

 The Liverwort Tribe (Marchantiacese orHepaticse). 

 h. The Chara Tribe (Characese). 



c. The Mushroom Tribe (Fungaceaj), Plate XXV- 

 3. 

 The Lichen Tribe (Lichenaccae), Plate XXV. 1. 

 The Sea-weed Tribe (Algacese), Plate XXV. 2. 



