VARIATIONS OF NECTARY. 



VARIATIONS OF THE NECTARIUM. 



It has been already said, Chap. III. that the neclarium, by the 

 former botanists, had been confounded with the petals; but 

 though it commonly attends upon, and makes part of the corolla, 

 it is often found distinct from it, as in the instances of Aconitum, 

 Aquilegi a, Helleborus, Isopyrum, Nigella, Garidella, Epi- 

 medium, Parnassia, Theobroma, Cherleria, and Sauvagesi a ; 

 which sufficiently proves that it should be distinguished from the 

 petals. The nectarium affords very singular varieties, especially 

 if it grows distinct from the petals. It admits of the following 

 principal distinctions. 



Calcariate nectaria, such as resemble a calcar, or spur; and 

 these are either in ??ionopetalous corolla, as in Antirrhinum, Va- 

 leriana, Pinguicula, and Utricularia ;...or in Polypetalous, 

 as in Orchis, Delphinium, Viola, Impatiens, and Fumaria, 



Nectaria that lie within the Substance of the petals, as in Fri- 



TILLARIA, LlLIUM, SWERTIA, IrIS, HeRMANNIA, UvULARIA, Hy- 



drophyllum, Myosurus, Ranunculus, Bromelia, Erythroni- 

 um, Berberis, and Valisneria. 



Nectaria that Crown the corolla, as in Passiflora, Narcissus, 

 Pancratium, Olax, Lychnis, Silene, Coronaria, Stapelia, 

 Asclepias, Cynanchum, Nepenthes, Cherleria, Clusia, Ha- 

 mamelis, and Diosma. 



Nectaria of Singular construction, as in Reseda, Cardiosper- 

 mum, Amomum, Costus, Curcuma, Grewia, Urtica, Andrach- 

 ke, Epidendrum, Helicteres, and Salix. 



Calycine nectaria, such as are found upon the calyx, as m 

 Tropcsolum, Monotropa, Biscutella, and Malpighia. 



Stamineous nectaria, such as attend the stamina ; and these 

 are either upon the anthers, as in Adenanthera ;...or upon the 

 filaments, as in Laurus, Dictamnus, Zygophyllum, Commeli- 

 na, Mirabilis, Plumbago, Campanula, and Roella. 



Pistillaceous nectaria, such as accompany the pistillum. These 



