256 AN INTRODUCTION 
watry Soils are apt to produce a Divifion in 
the lower Leaves of the Plant, and even to 
render capillary fuch as are produced under 
the Water; as in fome Species of Ranuncu- 
lus and Sifmbrium*; and alfo in Cicuta, 
Sium, Phellandrium, Oenanthe, &c. Andon 
the contrary, that mountainous Plants ufually 
have their upper Leaves more divided, and 
their lower ones more entire; as in Pimpz- 
nella, Petrofelinum, Anifum, and Coriandrum. 
Varieties may generally be explained and 
reduced under their proper Species with 
Eafe; by conferring the variable Marks of 
the Variety with the natural Plant: But 
there are fome few which are attended with 
Difficulty, and require Judgment and Ex- 
perience; as in fome Species of Helleborus +-, 
Gentiana}, Fumaria ||, Valeriana §, Scorpiu- 
rus, 
* Ranunculus aquaticus folio rotunda et capillacea (C. B.) 
Si/ymbrium foliis fimplicibus dentatis ferratis (H. @.) 
+ Helleborus aconiti folio, flore globofa croceo (Amm. ruth. 
ior.) Trollius humilis flore patula (Buxbh. cent. 1. p- 15. 
1. 22.) Varietas Hellebori Trollii (Fl. Succ. 475.) Neéta- 
riis longitudine corolla. 
t Gentiana corolla hypocrateri form. Tubo villis claufo, 
calycis foliis alternis majoribus (Fl. Lap. 94.) Varietas gen- 
tiang fauce barbata (FI. Succ. 203.) flore quadrifido et caly- 
cinis laciniis alternis duplo latioribus. 
|| Fumaria bulbofa radice cava et nox cava major et 
minor. 
§ Valeriana arvenfis precox humilis, femine compreffo (T-} 
Valeriana 
