The Natural System of Botany. 109 



developed and petaloid, or petal-like. Ex. : Amaryllis, Hya- 

 cinth, Lily, Orchis. 



3. SpadicejE. — These possess no calyx or corolla, but in 

 their place herbaceous scales, equal in size and uniform in 

 color. Ex.: Arum, or Indian Turnip, Ictodes, or Skunk's 

 Cabbage. 



Tribe II. — Glumaceje. 



Flowers destitute of a true calyx or corolla, but enveloped in 

 scales or chaffy bracts. This tribe comprehends the Grasses, 

 properly so called, and the Sedges, with which in many 

 respects they are nearly allied. Ex. : Wheat, Oats. 



Class II. — Cellulares, or Flowerless Plants. 

 Plants having neither stamens, pistils, flowers, nor spiral vessels. 



This, the second of the grand divisions, as has been before 

 mentioned, includes all those plants which are destitute of any 

 perceptible organs of fructification, and is separated into the 

 three following sections : — 



1. FilicoidejE. — These have a distinct stem or axis, and a 

 vascular system. Ex : Ferns, Club-moss, Equisetum, or Horse- 

 tail. 



2. Muscoide^e. — These have a distinct axis, but not a vas- 

 cular system. Ex. : Moss, Liverwort. 



3. Aphyllje. — These have neither a distinct axis, nor a vas- 

 cular system. Ex.: Mushroom, Sea-weed. 



The above comprise all the primary divisions of plants, 

 according to the system of Lindley, a general view of which is 

 given on the following page. Of these, the sections into which 

 Angiospermoe, and Petaloideae are divided, are called Artifi- 

 cial Divisions. 



