222 AN INTRODUTION 
Rumex, Perficaria, Polygonum, Parietaria,Pri= 
mula, Carduus, Cnicus, Tuffilago, Senecio, O- 
thonna, Potentilla fruticofa, Ptelea, and fome 
Species of Salix. 
OBVOLUTE, rowled againf? each other ; 
when their refpettive Margins alternately 
embrace the ftrait Margin of the oppolite 
Leaf; as in Dianthus, Lychuis, Saponaria, 
Epilobium oppofitif. Dipfacus, Scabiofa, Vale- 
riana, Marrubium, Phlomts, Salvia, and Pra- 
fium. 
CONVOLUTE, rowled together; when 
the Margin of one Side furrounds the other 
Margin of the fame Leaf, in the Manner of 
a Cawl or Hood; as in Canna, Amomum, 
Calla, Arum, Piper, Hydrocharis, Commelina 
lutea, Prunus Armeniaca, Dodecatheon, Cre- 
pis, Lactuca, Hieracium, Sonchus fibir. Tra- 
gopogon, Orobus, Vicia, Lathyrus, Solidago, 
After, Pinguicula, Vaccinium, Pyrola, Ber- 
beris, Brafica, Armor acia, Symphy/um, Cyno- 
glofium, Potamogiton perfol. Eryngium, Meny- 
@nthes, Saxifraga, Aralia, Dictamnus, Epi- 
medium, and many Graffes. 
IMBRIC ATE; when they are parallel, 
with a ftrait Surface, and lie one over the 
other; asin Syringa, Ligufirum, Phillyrea, 
Nyéanthes, Linnea, Cephalanthus, Coriaria, 
Eypericum,Valantia, Fufticia, Portulaca, Lau- 
rus, 
