NENUPHAR 
493 
buds arise at the base of the year’s shoot, and take root while still 
attached to the parent shoot. The adventitious roots are said to arise 
exogenously (p. 38). [The N. of gardens is really Tropaeolum.] 
Nauclea Linn. Rubiaceae (1. 6). 30 sp. trop. As., Polynes. Firs, in 
spherical heads. In N. lanceolaia Blume ( N . purpurea Roxb.) there 
are hollow swollen portions of the stem, just below the infls., inhabited 
by ants (cf. Acacia). 
Nectandra Roland. Lauraceae (1). 70 sp. trop. and subtrop. Am. 
Neea Ruiz et Pav. Nyctaginaceae (2). 30 sp. trop. S. Am. The 
leaves of N. theifera Oerst. (Caparrosa) are used as tea, and also yield 
a black dye. 
Negundo Moench. Aceraceae. 4 sp. N. temp. Like Acer (q.v.), to 
which it is united in Nat. Pfl. 
Neillia D. Don. Rosaceae (1. 1). 3 sp. Himal., S. China. 
Nelsonia R. Br. Acanthaceae (1). 1 sp. trop. Old World. 
Nelumbium Juss. Nymphaeaceae (1). 2 sp., N.luteum Willd., Penn- 
sylvania to Columbia, and N. speciosum Willd. (N. nuciferum Gaertn.) 
Japan to Caspian and N.E. Austr. The latter sp. is the sacred Lotus, 
no longer however found in the Nile. Sculptures of it are common 
in Egyptian temples, and it is still regarded as sacred in India, Tibet, 
China, &c. Bothsp. are marsh plants; the fls., which are very large 
and handsome, and the big peltate slightly hairy leaves stand above 
the water (do not float upon it, as from analogy we should expect). 
The rhizome bears ‘triads’ of leaves; after a long internode 
comes a scaly-leaf on the lower side, then one on the upper side, 
immediately followed by a foliage-leaf with ochreate stipule, then a 
long internode again, and so on. This peculiar leaf-arrangement 
is quite unique. From the axil of the second scale-leaf springs 
the fir., from that of the foliage-leaf a branch. The fir. has no 
bracteoles. The first perianth-leaf is anterior, the second posterior, 
then follow 2 lateral ; these 4 are sometimes regarded as a calyx. 
They are followed by numerous petals and sta., acyclically arranged. 
In the centre of the fir. stands the curious obconical gynoeceum, con- 
sisting of a large number of cpls. embedded separately in the top of 
the swollen receptacle. Each cpl. contains 1 pendulous ovule. The 
receptacle becomes dry and very light, and the achenes separate from 
it, as the fruit ripens. It breaks off bodily from the stalk and floats 
about until decay sets free the fruits, which sink to Hie bottom of the 
pond. There is no endosperm or perisperm. The seeds of N. specio- 
sum are used as food in Cashmere &c. 
Nelumbo (Tourn.) Adans. = Nelumbium Juss. 
Nemastylis Nutt. Iridaceae (11). 10 sp. Am. 
Nemesia Vent. Scrophulariaceae (11. 5). 24 sp. S. Afr. 
Nemophila Nutt. Hydrophyllaceae. n sp. N. Am., often cultivated. 
Floral mechanism &c. as in Phacelia. 
Nenuphar Link = Nuphar Sm. 
