Nertera 



(113) 



Nicotiana 



Selection of N. Oleander Varieties : 

 album plenum, double wh. M. Balaguier, pk. 

 Felix Bourguet, ro., yel. Professor Duchartre, rosy 

 Henri Mares, rosy pk., pur. 



double. Professor Durand, yel. 



Madonna grandiflorum, Sneur Agnes, double wh. 



cream. splendens, red, double. 



vuriegatum, red, Ivs. 

 edged wh. or yel. 



NERTERA. 



Small, creeping, hardy, half-hardy, or tender 

 herbs (ord. Rubiaceaj), of which only one, named 

 below, appears to be in cultivation. Although 

 reputedly hardy, it is not so everywhere, and may 

 require the protection of a cold frame or greenhouse 

 in winter. It is a neat little rockwork plant, 

 creeping on the ground, and prized for its bright 

 berries. Propagation, by division or by seeds sown 

 when ripe under glass. It likes a sandy soil. 



Principal Species : 



depressa, Bead Plant, Fruiting Duckweed, 1" to 

 .'!''. berries or. red or sc. 



NESvEA. 



Annual or perennial herbs or sub-shrubs (ord. 

 Lythrariese). Three or four species only are culti- 

 vated, and these not to any great extent. In some 

 places they are hardy, but in cold, exposed places 

 a cool greenhouse is necessary. Propagate by 

 means of seeds or cuttings, and use ordinary 

 garden soil. 



Principal Species : 



salicirolia, .5', sum., sub- grandiflora, much finer 



shr., yel. (./. Heimia flowers. 



salicifolia). triflora, 2' to 3', Aug., 



hlf-hdy. ann., bl. 



NETTING. 



Material made from string or wire, and used 

 largely in gardens for the protection of fruit from 

 birds, or for keeping rabbits and other animals 

 from plants they would otherwise injure. For the 

 protection of fruit, fish nets are the most suitable. 

 If hung over fruit trees when in flower, they also 

 provide a little protection against frost. For 

 stopping rabbits, wire netting with 1" mesh or 

 holes 2J-' wide should be provided. This should 

 be let 6" into the ground to prevent burrowing, and 

 the upper portion securely fastened to stakes. 



NEUROLJENA. 



Tropical or sub-tropical sub-shrubs {ord. 

 Composite) requiring an intermediate house 

 temperature. They have usually white or yellow 

 flower heads, and are of little horticultural value. 

 Any kind of garden soil suits them. 



Principal Species : 



lobata, 2', Je. to Jy., yel. (syn. Calea lobata). 



NEUWIEDIA. 



Stove terrestrial Orchids (ord. Orchidaceae), allied 

 to Selenipedium. They are stout, erect plants, with 



Netnjtanax (we I'lerandrn). 

 Nettle, Hedge {see Maclti/s). 

 \eltle Mullein (sec Vtrbeuevm') 

 Nettle, Wingless (see I'ilea). 

 Nettle Tree (sec d-ltit). 

 Nriiinannia (let Pitcairnia) . 

 Xi'iimi'iiHis (see Acrpsfie/iii/n). 

 \enrndium (see Ttenitis'). 

 Neuroloma (see Parrya). 

 Neuttanthut (sec Pueraria) 

 38 



j thick roots, large plicate (folded) leaves, and dense 

 spikes of white or yellow flowers. Treatment similar 

 to that given to Cypripediums is necessary. 



Principal Species : 

 Griffithii, 1J', Sep., wh. Liudleyi, 3' to 4', win... 



pale yel. 

 NEVIUSIA. 



A hardy shrub (ord. Rosacefe) from North 

 America, having smallish, ovate leaves and white 

 flowers. Cuttings root readily in June or July if 

 given a little bottom heat, and ordinary garden 

 soil is all it requires. 



Only Species : 

 alabamensis, G', My., wh. 



NEWBOULDIA (.*//. SPATHOTECOMA). 



A small genus of trees from tropical Africa (ord. 

 Bignoniaceai), having alternate, deeply lobed 

 leaves and large heads or panicles of pink or 

 violet flowers. The genus is not in general culti- 

 vation. A mixture of loam and peat forms a 

 suitable soil. 



Principal Species : 

 Isevis, sum., ro. pur. 



NEW ZEALAND SPINACH. 



The correct name of this plant is Tetragonia 

 expansa (ord. Ficoideae). It is an annual found 

 wild in Australia and New Zealand. It is grown 

 solely as a vegetable, the young leaves being cooked 

 and used in a similar manner to the . common 

 Spinach. Although inferior in flavour to Spinach, it 

 has several advantages over that plant, as in hot 

 summers it does not get "burnt up" so quickly, 

 grows with greater vigour, and does not run to 

 seed so fast. It may either be sown indoors in 

 early spring, and the seedlings planted in rows 'A' 

 apart leaving 1 y between the plants in May, or it 

 may be sown out of doors and thinned out to the 

 same distance. Rich soil is essential, and the 

 leaves should be gathered when young and tender. 



NICANDRA. 



A genus containing one annual herb (ord. Sola- 

 naceae). This, physaloides, has membranous, deeply 

 lobed leaves and blue flowers. It grows to a height 

 of from 2' to 4' ; and the flowers, which are borne 

 during summer, are followed by red, ornamental 

 fruits. Seeds should be sown out of doors in 

 April, in ordinary garden soil. 



NICOTIANA. (TOBACCO.) 



Description. A genus (ord. Sclanacete) of up- 

 wards of thirty half-hardy herbs, best known from 

 one of the species, Tabacum, producing the to- 

 bacco of commerce. A number of the species make 

 very fine plants for the garden if treated as half- 

 hardy annuals and planted out in early summer. 

 Alba, or afflnis, sometimes stands the winter, or 

 springs up again from the roots, and sylvestris 

 seems nearly hardy. The sweet-scented species, 

 such as alba (affinis), are welcomed under glass. 



\i'ir Jersty Tea (ice Cranothtis amerieamu). 

 Nem Zealand Bluebell (see Wahlenberyia sa.ri. 



cola). 



A"ew Zealand Flax (see Pliormlum). 

 Neir Zealand Bur (see Acana). 

 Nem Zealand Laburnum (see Sophora tetraptcra 



microphylla). 

 Nicker Tree (see CtrnaJpinia). 



