20 AN INTRODUCTION 



Lilium, Podophyllum ; enneapetalous, of nine, as in 

 Thea, Magnolia, and Liriodendron ; or polypetalous, 

 of many, as in Nymphaea. 



In respect to its Laciniae (which concern rather 

 the Monopetalous than the Polypetalous, being but 

 rarely observed in the latter) it has either two, as in 

 Alsine and Circsea ; three, as in Holosteum and Hy- 

 pecoum ; four, as in Lychnis ; or Jive, as in Reseda. 



The variations of the Corolla, in respect to Figure, 

 will include what also concerns its equality, and its 

 margin. 



In respect to figure, it is either undulate, waved, 

 as in Gloriosa ; plicate, folded, as in Convolvulus ; 

 resolute, rolled back, as in Asparagus and Medeo- 

 ia ; or tort, twisted, as in Nerium, Asclepias, and 

 Vinca. J ts more considerable variations, in respect to 

 figure, have been already shewn in Chap. 3. 



In respect to equality, it is either equal, as in 

 Primula; unequal as in Butomus ; regular, as in A- 

 quilegia ; or irregular, as in Aconitum and Lamium. 



In respect to its margin, it is either crenate, notch- 

 ed, as in Linum ; serrate, sawed, as in Tilia and A- 

 lisma ; dilate, fringed as in Ruta, Menyanthes, and 

 Trop.aeolum ; denticulate between the segments, that 

 is, having a Denticulus, or little jag, at the bottom of 

 the divisions, as in Samolus and Sideroxylum ; or 

 with a hairy surface, as in Menyanthes, arid Lasian- 

 rhus, a species of Hypericum. 



In respect to Proportion it may be very long, as in 

 Catesbaea, Siphonanthus, Brunstblsia and Craniola- 

 ria ; or very short, as in Sagina, Centunculus and 

 Ribes. 



In respect to Situation, the base of the Corolla is 

 usually close to the Perianthium, if there be one : It 

 is indeed separated from it by the Germen, in Adoxa, 

 Sanguisorba and Mirabilis ; but these instances are 

 very rare. 



In respect to Duration, it is either persisting, lasting 

 till the fruit is ripe, as in Nymphsea ; caducous, 

 dropping as soon as the flower is blown, as in Actea 



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