KEY TO THE NATURAL ORDERS. 



167. Water plant, or, if on land, forming greenish .ielly-like 

 masses, or deep red or brown, velvety, thread-like cover- 

 ing to wood or stone 



Land plants 



16S. Plant leathery or fleshy, variously shaped, the spore- 

 hearing portion usually in flat disks or spreading sur- 

 faces, or terminal round and bright-coloured heads, on 



branched or simijle leathery stalks 



Plants of most varied consistency and shape, never green, 

 and, when the spore-bearing portion is m the form of a 

 disk or cup, it is not placed on an expanded frond, and 

 where the plant is in the form of clubs, stalks, &c., they 

 are usually fleshy, and the head is seldom distinct, and 

 differently coloured 



Algce. 

 168. 



Lscfcen.es. 



Fungales. 



