64 HEP'ATICJE, MUSCI. [Cl. 1. 



Some are filamentous, some gelatinous like Fungi ; 

 some coriaceous or crustaceous; some herbaceous, in 

 a manner leafy, and more akin to other plants. Or- 

 gans analogous to Stamens and Pistils are in some 

 altogether unknown, in some more conspicuous, and 

 in others well known, differing greatly among them- 

 selves as to structure and situation." 



This Order consists chiefly of Submersed Algce, 

 %. 123-128, and Lichenes (90), fig. 116-122, with 

 which a few Fungi are confounded. The " well-known" 

 fructification is attributed to the Lichenes, in which 

 however scarcely more than the Seeds have been as- 

 certained. These generally are 8 together, in sepa- 

 rate tubular parallel vertical cells, sunk in a horizontal 

 or convex disk, exactly as in some Fungi, particularly 

 the genus Peziza; a coincidence too little noticed. 



Ord. 3. HEPATICJE. fig. 114, 115. Herbaceous, 

 creeping, many-rooted plants inhabiting damp places, 

 whose Fructification is monoecious or dioecious, ap- 

 parently of a various and complex nature, but not per- 

 fectly understood. The Seeds are often attached to 

 elastic fibres, and send out Radicles from underneath. 



Jungermannia, Marchantia^ &c. are examples. 



Ord. 4. MUSCI. fig. 108-113. True Mosses (90), 

 whose Fructification, as now well understood from 

 the investigations of Hedwig, is generally monoecious. 

 The Barren Flowers (66) consist of an indefinite num- 

 ber of jointed tubular bodies, discharging a volatile 

 Pollen (58) ; the Fertile ones (67) are generally se- 



