TO BOTANY. 21 



and Thalictrum ; deciduous, dropping off with the 

 flower, which is the most common ; or marct-sent, 

 withering, but not falling, as in Campanula, Orchis, 

 Cucumis, Cucurbita, and Bryonia. 



Variations of the NECTARIUM. 



It has been already said, Chap. 3. that the Necta- 

 rium. by the former botanists, had been countbunded 

 with the petals ; but though it commonly attends up- 

 on and makes part of the corolla, it is often found 

 distinct from it, as in the instances of Aconitum, A- 

 quilegia, Helleborus, Isopyrnm, Nigella, Gandella, 

 Epimedium, Parnassia, 1 heobroma, Cherlei ia, and 

 Sauvagesia ; which sufficiently proves, that it should 

 be distinguished from the petals. The Nectarium af- 

 fords very singular varieties, especially it it grows 

 distinct trom ihe petals. It admits of the fallowing 

 principal distinctions. 



CA LCARI ATE Nectaria, such as resemble a Calcar y 

 or Spur ; and these are either in monopetalous Co- 

 rollce, as in Antirrhinum, Valeriana, Pinguicula and 

 Utricularia ; or in polypetalous, as in Orchis, Del- 

 phinium, Viola, Impatiens and Fumaria. 



Nectaria that lie within the substance of the pe- 

 tals, as in Fritillaria, Lilium, Swertia, Iris, Hermau- 

 nia, Uvularia, Hydrophyllum, Myosurus, Ranuncu- 

 lus, Broinelia, Erythronium, Berberis and Valisne- 

 ria. 



Nectaria that crown the Corolla, as in Passiflora, 

 Narcissus, Pancratium, Olax, Lychnis, Silene, Coro- 

 narla, Stapelia, Asclepias, Cynanchum, Nepenthes, 

 Cherleria, Clusia, Hamamelis and Diosrna. 



Nectaria of singular construction, as in Reseda, 

 Cardiospermum, Amomum, Costus, Curcuma, Grew- 

 ia, Urtica, Andrachne, Epidendrum, Helicteres and 

 Salix. 



CALYCINE Nectaria, such as are found upon the 

 Calyx, as in Tropaeolum, Monotropa, Biscutella and 

 Malpighk, 



B S 



