198 ANALYSIS OF THE NATURAL ORDERS. 



f Styles and stigmas 3, distinct, (h) 



h Leaves rush-like. Ovary of 3 one-seeded carpels. JtrNCAGiNEx. 135 



h Leaves linear, lanceolate, etc. Ovary 6 GO -seeded. MELANTHACE-B. 149 



k Petals yellow, small but showy. Plant acaulescent. XYBIDACE.E. 153 



k Petals white, minute, fringed. Plant acaulescent. EEIOCACLONACH^. 154 



G COHORT 7. GRAMINOEDE^E. 



1 Flower with a single bract (glume). Culm solid, sheaths entire. CTPERACE.E. 155 

 H Flower with several bracts (glumes and pales). Culm hollow. Sheaths 



split on one side. GRAIIINE.S. 156 



H PROVINCE, ACROGENS. 



Plants with well developed foliage. (1) 



IT Leaves few, mostly ample and from subterranean rhizomes, (a) 

 a Fruit borne on the leaves which are often more or less contracted. Fruczs. 160 

 a Fruit borne at the base of the radical, entire or lobed leaves. MARSILEACE^B. 157 

 IT Leaves numerous, small, mostly spirally imbricated on the stem, (b) 

 b Fruit axillary, sessile, opening by a slit. LTCOPODIACE^. 158 



b Fruit mostly terminal and usually stalked, opening by a lid. Musci. 162 



1 Leaves numerous, small, imbricated on the stem in 2 rows. ) 

 Plants with the leaves and stem confounded, thallus-like. j HEPATIC^:. 16: 



Plants with verticillate branches instead of leaves, (c) 



c Fruit in terminal spikes, and of one kind only. EQUISETACEJB. 159 



c Fruit lateral, scattered on the branches, and of two kinds. CHABACE^E. 161 



K PROVINCE, THALLOGENS. 



Plants aquatic, with a colored thallus. Fruit immersed in the frond. A-LG&. 164 



Plants on dry rocks, logs, or bark of trees, thalloid or granular. LICHENS. 165 



Plants growing on decaying organisms. Thallus cotton-like, the fruit very 

 different, all without chlorophylle er starch. FUNGI. 166 



NOTE. Six Orders of the Cryptogamia, No?. 161-166, are necessarily excluded. In the ful- 

 filment of our plan, these extensive Orders will constitute a separate and independent volume. 



