NECTRIS AQUATICA 



NEMATUS 



of the bright red, coral, or scarlet colour of the knob- like 

 warts of the fruiting portion in the autumn and early 

 winter. All diseased wood should be cut off some dis- 

 tance below the visible portions of the fungus and burned 

 to destroy the myriads of spores present. Dead wood 

 lying on the ground should be served in the same way. 

 Old, much-cankered Apple trees, when practically useless, 

 should be uprooted and burned. 



NE'CTRIS AQUA'TICA. See CABOMBA AQUATICA. 

 NE'CTRIS PELTA'TA. See CABOMBA CAROLINIANA. 

 NVKllT/p. FURZE. See GENISTA ANGLICA. 

 NEGRO FLY. Atha'lia. 



NEGTJ'NDrUM AMERICA 'NUM. See ACER NEGUNDO. 

 NEGU'NDO. Box Elder. (Derivation is not known. 

 Nat. ord. Maples [Sapindaceaej. Linn. 22-Dicecia, $-Pen- 

 tandria. United to Acer.) 



N. cissifo'lium (Cissus-leaved). See ACER CISSIFOLIUM. 

 fraxinifo'lium (ash-leaved). See ACER NEGUNDO. 

 nikoe'nse (Niko). See ACER NIKOENSE. 

 NETLLIA. (Commemorative of Patrick Neitt, of 

 Edinburgh. Nat. ord. Rosaceae.) 



Hardy, deciduous shrubs. Cuttings of ripe wood in 

 autumn in cold frames ; seeds. Ordinary soil. 

 2V. amure'nsis (Amurland). 4-6. White. July, August. 



Amurland. 



capita'ta (headed). 3-5. White. California. 

 malva'cea (mallow-like). 3-4. White. Rocky 



Mountains. 

 opulifo'lia (Opulus-leaved). 4-6. White. June. 



N. Amer. 1690. " Nine-Bark." 

 ine'brians (inebriating). 



lu'tea (yellow). Foliage yellow, best in spring. 

 rubiflo'ra (Rubus-flowered). 6. White. Himalaya. 

 sine'nsis (Chinese). 4. Rosy-pink. June. Central 



China. 1902. 



thyrsiflo'ra (thyrse-flowered). 3-5. White. Himalaya. 

 Torre'yi (Torrey's). 2-3. White. June. Rocky 

 Mountains. 1889. 



NE JA. (A name invented by Don, who wrote the 

 letters of the alphabet on slips of paper, threw them up, 

 and took those for the name which fell uppermost. Nat. 

 ord. Composites [Composite]. Linn. ig-Syngenesia, 2- 

 Superflua. Referred to Hysterionica.) 

 N. falca' ta (sickle-shaped). See HYSTERIONICA PINIFOLIA. 

 ,, gra'cilis (slender). See HYSTERIONICA PINIFOLIA. 



NELTTRIS. (From ne, not, and elutron, a seed-case ; 

 referring to the berry having no partitions. Nat. ord. 

 Myrtleblooms [Myrtacea?]. Linn. i2-Icosandria, i-Mono- 

 gynia.) 



Stove white-flowered, evergreen shrub. Cuttings of 

 half-ripened short shoots in sand, under a bell-glass, and 

 in a gentle heat, in April or May ; fibrous loam, leaf- 

 mould, peat, and sand, and a little charcoal to keep all 

 open. Winter temp., 45 to 50 ; summer, 60 to 85. 

 N. Jambose'lla (Jambosella). See TIMONIUS JAMBOSELLA. 

 panicula'ta (panicled). See DECASPERMUM PANICULA- 

 TUM. 



NELSO'NIA. (A commemorative name. Nat. ord. 

 Acanthaceae.) 



Stove herbaceous perennial. Cuttings in sand in a 

 close case. Loam, leaf-mould, and sand. 

 N. campe'stris (field). Violet. June. Tropics of both 



Worlds. 1827. 

 tomento'sa (felted). See N. CAMPESTRIS. 



NELU'MBIUM. Sacred or Water Bean. (From 

 nelumbo, the Indian name. Nat. ord. Water-lilies 

 [Nymphaeaceae]. Linn. i^-Polyandria, 6-Polygynia.) 



These handsome plants are natives of still waters. 

 The nuts of all the species are eatable and wholesome ; 

 and the North American Indians eat the root-stocks of 

 lu'teum, which are not unlike the sweet potato. Division 

 of the root, either just before, but better just after, 

 growth has commenced, and better still by seeds ; fresh 

 warm water must often be supplied when the plants are 

 growing, removing some out of the tub, and placing more 

 in; when at rest, the soil, rich loam, may be allowed 

 to get quite dry. Temp., when at rest, 48 to 55 ; 

 when growing and approaching flowering, 70 to 95. 



N. ca'spicum (Caspian). See N. SPECIOSUM. 

 flave'scens (yellowish). Yellowish. June. Egypt. 



1847. 



, jamaice'nse (Jamaica). Blue. Jamaica. 1824. 

 , lu'teum (yellow). Yellow. Carolina. 1810. 

 , nuci'ferum (nut-bearing). See N. SPECIOSUM. 

 , specio'sum (showy). Pink. July. India. 1787. 

 , a'lbum (white). White. 



, ro'seum (rose-coloured). 3. Rose. June. India. 

 , Tama'ra (Tamara). See N. SPECIOSUM. 



NEMA'STYLIS. (From nema, a thread, and stulis, the 

 diminutive of stulos, a column or style for writing with ; 

 in allusion to the long, slender style.) 



Half-hardy bulbs. Offsets and seeds. Loam, with a 

 little leaf-mould, and plenty of sand. 

 N. acu'ta (acute). J-r. Bright blue. Texas and 



Arkansas. 1875. 



ccelesti'na (sky-blue). i\- 2 . Sky-blue. March. 

 Southern United States. 1818. 



NEMATA'NTHUS. (From nema, a thread, and anthos, 

 a flower ; the flowers of lo'ngipes hanging down from 

 long, thread-like foot-stalks. Nat. ord. Gesnerworts 

 [Gesneraceae]. Linn. i^-Didynamia, 2-Angiospermia. 

 Allied to Columnea.) 



Stove evergreen cumbers of considerable beauty, easily 

 managed, still easier to increase, and offering strong 

 inducements to the cross-breeder. Cuttings in sandy 

 soil, kept rather dry ; leaves, also, will strike ; sandy 

 peat and turfy loam, with charcoal and dried cow-dung. 

 Winter temp., 45 to 55 ; summer, 60 to 85. 

 N. chlorone'ma (greea-filamented). See N. LONCIPES. 



corti'cola (bark-loving). Deep crimson. Brazil. 1848. 



guilleminia'na (Guilleminian). See N. LONGIPES. 



ionf'ma (violet-stemmed). See N. CORTICOLA. 



lo'ngipes (long-flower-stalked). 2. Scarlet. December. 

 Brazil. 1841. 



NEMATOID WORMS. A large group of minute worms 

 belonging to the order Anguillulideae or eelworms. They 

 are minute, or in many cases microscopical in size, white 

 or colourless, and thread-like, though in the case of 

 Heterodera radicicola the full-grown female, when filled 

 with eggs, swells out into lemon-shape many times her 

 original size. Tylenchus devastatrix, like the previous 

 one, enters the roots of various wild and cultivated 

 plants, causing galls upon them. Plants, once attacked 

 by them, are in most cases incurable, and should be 

 burnt. Eelworms may be introduced with soil, manure, 

 or water, and the best preventative would be to sterilise 

 the soil in which the plants are to be grown. This may 

 be done by baking or steaming soil for pot plants, by 

 adding lime, gas-lime, &c., to garden soils. 



NEMA'TUS. A very large genus of Sawflies, the larvae 

 of which are destructive to gooseberries, red currants, 

 and willows. As many as 107 have been described as 

 British. N. Ribesii, N. consobrinus, and N. appendicu- 

 latus attack the gooseberry, but the first named, which 

 is very destructive to both gooseberries and red currants 

 is best known, under the name of Gooseberry and Currant 

 Sawfly. The larvae or caterpillars are bluish-green, 

 with black head, feet, and tail, and several rows of black 

 spots. They are also readily distinguished by having 

 fourteen sucker-feet and six proper feet, or an aggregate 

 of twenty. The perfect sawfly has four wings, with 

 yellow and orange body, with black markings, but does 

 not feed on the foliage. Remedies may be commenced 

 in winter by removing 4 inches of soil from beneath the 

 bushes and burying it in deep holes between the rows of 

 bushes. Give a sprinkling of lime, and then cover the 

 roots with soil taken from the holes. The eggs are laid 

 upon the young leaves, some time in April, the cater- 

 pillars hatch out in seven days and commence feeding. 

 If attacked at this early stage they are easily destroyed 

 by means of flowers of sulphur dusted on the dewy 

 leaves, early in the morning, with a pepper-box or special 

 sulphur distributor. This is a non-poisonous remedy. 

 Another useful remedy is to syringe the bushes with a 

 mixture, consisting of three gallons of soapy water, $ lb. 

 of soda in solution, the same weight of table salt, and a 

 handful of soot. If this is done on a dull day or after 

 sundown, the mixture may be used lukewarm, and washed 

 off with clean water half an hour later. 



