THiE 



NATURAL ARRANGEMENT 



OF 



BRITISH PLANTS. 



Series II. PLANTS ENDOGENiE. 



XL ANTS composed of cellular texture, Avith lymphatic, 

 spiral, and proper vessels; and with cortical pores in the 

 leaves or herbaceous tip of the stem. Slems entirely desti- 

 tute of a central pith, medullary radii, or true bark; grow- 

 ing only at top, the vessels being disposed in Bundles, the 

 youngest in the centre : sometimes abortive, subterraneous, 

 or root-like. Leaves frequently sheathed, either not notched 

 and with simple ribs, or lobed and with branched ribs ; but 

 never truly compound. Corcidum of the seed simple. Coty- 

 ledons, either solitary ; or many, alternate. 



Divided into two sub-series : A, cryptogamse ; B, pha- 

 neroffamte. 



Subseries II. A. Plants endogen^ cryptogams. 

 Fructifications hidden, unknown, or irregular. 



FAMILIES. 



Fructifications gregarious, either on the lower 

 surface of the leaves; or rarely in spikes . .. FILICES. 1. 



Fn crustaceous, sessile, axillary, at the base 

 of the leaves, or of the bractese. . LYCOPODIACE^. 2 



Fr. radical, spherical, coriaceous, many celled ; 

 Leaw^ revolute ; P/a/z^ aquatic .. MARSILEACE^. 3, 



Fr. terminal, amentaceous ; Ste?n leafless ; 

 Branches verticillate, jointed .... EQUISETACE^. 4, 



Fr. axillary, turbinate, spiral, many seeded ; 

 Plant aquatic CHARADES. 5 



VOL. II. B 



