DIFFERENT FORMS OF THE NECTARHJM. 
373 
glands, Echites five, Hernandia has four or six surrounding the 
germ, and Grielum has a set of oblong glands round the germ uniting 
into a little crown, Malpighia has two glands at the bottom and out 
side of the calyx, in Banisteria, the case is the same, except that one 
folide of the calyx has no glands, and therefore the whole number is 
eight instead of ten. Reseda has a gland, arising from the receptacle 
between the stamens and the upper petal. Croton has five of them 
fixed to the receptacle, Astronium has five in the disk of the flower, 
Cucurbita has a single triangular concave gland in the centre of the 
flower, and in Salix the situation is the same but the form cylindric. 
Another usual form of the nectary is scales, which are nothing but 
flatted glands, Vicia has one scale only at the base of the germ, Cuss- 
cuta has four at the base of the stamens, but many have five scales as 
Parnasia, at the base of the Aliments in Quassia, between the stamens 
in Tresine at the base of the germ in Crassula, surrounding the re¬ 
ceptacle in Samyda, or at the base of the petals in Ranunculus. 
Amaryllis has six scales without the base of the Aliments. 
Not unfrequently does the nectary appear in the shape of valves, 
which are generally five in number; in Plumbago placed at the bot¬ 
tom of the corolla and inclosing the germ, surrounding the germ in 
Achryanthus, and covering the capsule in Campanula. Asphodel 
has six of these valves inserted into the base of the corolla, and form¬ 
ing a complete arch over the germ a Aliment springing from each of 
them. 
In Ery thronium, there are two callous tubercles at the base of each 
inner petal; in Laurus, three tubercles round the germ, and two 
round glands on a short stalk near the base of each Aliment of the 
inner rank, in some species of Iris there are three dots at the base 
and on the outside of the corolla; in Tamus an oblong dot grows 
to the inside of each division of the calyx and in Swertia are ten of 
these dots, two at the base of each division of the corrolla, in Hya- 
cinthus there are three pores at the top of the germ, and in Frittalaria, 
there is an excavation at the base of each petal, which is considerable, 
and generally exhibits a large drop of nectareous juice. Mercurialis 
has two subulate acumens or sharp points, one on each side of the germ, 
and Vallisneria has cuspis on each petal. 
The nectary makes a most beautiful appearance in some species of 
Iris as a longitudinal villous line upon the petals, in Lilium, it is a 
pipe or a tubulose line, along the middle of each petal, and Frankenia 
it is a channel running along the claw. 
In some genera the nectary takes the exact form of petals, and was 
always confounded with them until Linnaeus pointed out the differ- 
