"THE 
NATURAL ARRANGEMENT 
OF 
BRITISH PLANTS. 
Series II. PLANT® ENDOGEN®. 
Plants composed of cellular texture, with lymphatic, 
spiral, and proper vessels; and with cortical pores in the 
leaves or herbaceous tip of the stem. Stems 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. Corculum of the seed simple. Coty- 
ledons , either solitary; or many, alternate. 
Divided into two sub-series: A, cryptogamse; B, pha- 
nerogams. 
Subseries II. A. Flantje endogenas cryptogams. 
Fructifications hidden, unknown, or irregular. 
FAMILIES. 
Fructifications gregarious, either on the lower 
surface of the leaves ; or rarely in spikes . . * F1LICES. 1. 
Fr, crustaceous, sessile, axillary, at the base 
of the leaves, or of the bractese. . LYCOPODIA CEZE. 2. 
Fr. radical, spherical, coriaceous, many celled ; 
Leaves revolute ; Plant aquatic .. MARSILEACEiE. 3. 
Fr. terminal, amentaceous ; Stem leafless ; 
Branches verticillate, jointed .... EQUISETACEiE. 4. 
Fr. axillary, turbinate, spiral, many seeded ; 
Plant aquatic . , CHARADE.ZE. 5. 
VOL. II. 
B 
