Nemastylis 



( 105 ) 



Nemophila 



unless the water be heated by pipes in winter. 

 They may, however, be grown in tubs plunged 

 outside in summer and protected under glass in 

 winter. They are fine plants for a tank under 

 glass, where they may have a temperature of 45 

 to 50, or more when at rest. They grow in good 

 loam and well rotted manure, and should be planted 

 about 1' below the surface of the water. 



Principal Species and Varieties : 

 luteum.Jy., yel., sweet. A omau); album striatum, 



handsome flower, ratlin' 

 like a double Tuhn. 

 speciosum, Jy., wh. tipped 

 ro., sweet (see figure). 

 Many vars., the follow- 

 ing being good : album 

 graiidiflorum ; album 

 plenum, wh. (si/n. Shir- 



wh., striped ear. ; Hud- 

 son's var. japonicum 

 roseum, red ; kermesi- 

 num, pk.; Osiris, bright 

 red : pekiuense rubrum, 

 double, red; pygmoeum, 

 dwarf, ro. ; roseum 

 grandiHorum ; ami 



roseum plenum, deep ro. 



NEMASTYLIS. 



Half-hardy bulbous plants (oril. Iridese) respond- 

 ing to the same treatment as Gladiolus, which tee. 



Principal Species : 



cu'lestina, '2', Je. , bl. yel., blk.; flowers very 



geniiuiflora, 6", sum., bl., fleeting (?yn. acuta). 



NEMATANTHUS. 



Stove evergreen climbers (onl. Gesneracea;) that 

 are worthy of attention. Propagation, by cuttings 

 in sandy soil. Soil, fibrous loam and peat with a 

 little leaf mould and sand. 



Principal Species : 



corticola, 2', sum., crim. 



(st/H. iouema). 

 lougipes, 2', win., so. 



(syiii. guilleminiana, 

 Columnea grandiflora 

 and C. spleuaens). 



NEMATOID WORMS. 



The minute animals referred to under this 

 general title are better known to gardeners as 

 Thread- or Eel-worms. They are microscopic and 

 translucent. Though their appearance is not well 

 known to horticulturists, the effects they produce 

 when attacking Cucumbers, Tomatoes, Clovers, etc., 

 are all too well known. Some species attack the 

 stems, while others appear to confine their attention 

 to the roots of plants, and in the latter case galled 

 or knotted roots are formed, the food supply is 

 checked, the tissues decompose, and the plant 

 collapses. The two genera of nematoid worms 

 (Anguillulidese) mostly affecting garden plants are 

 Tylenchus and Heterodera. They are tenacious of 

 life, vegetable poisons having apparently no effect 

 upon them, and the ordinary extremes of heat and 

 cold will not kill them. If in fodder plants 

 con-umed by animals, they pass unhurt into the 

 manure and may thus be disseminated. Remedies 

 for these pests are detailed under the plants most 

 subject to their attacks. 



NEMATUS. 



The chief members of this genus of Sawfiies 

 (Tenthredinidio) is N. Ribe.-ii, unfortunately too 

 well known to many gardeners and market growers 

 as the Gooseberry or Currant Sawfly. Some other 

 species that occasionally become serious pests are 

 liaccarum, Salicis-cinereic, ischnocerus, and vesica- 

 tor, all of which raise galls on Willow leaves; and 

 abbreviatus, which sometimes affects Apple and 

 Pear trees. A few others attack Birches, etc. 

 GOOSEBKRKY SAWFLY for remedies.) 



NEMESIA. 



Annua's and hardy herbaceous perennials (ord. 

 Scrophularinea!), which, with the exception of 

 strumosa and its varieties, are not much grown in 

 gardens. Seeds of the annuals may be sown either 

 in heat in March and April and afterwards planted 

 in the open, or seed may be sown in the open in 

 May. The perennials should be divided in the 

 spring. Any moist, fertili}" garden soil is suitable. 

 Strumosa makes a good pot plant. 



Principal Species : 

 bicoruis, 2', Jy., hdy. 



ami., pur. 

 liueans, 2', Ap. to Sep., 



hlf-hdy. per., ro. pur. 



Other Species : 



chamaidrifolia, 2 , Je., 



hdy. per., pur. 

 cynauclrifolia, \ , sum., 

 "hd\. per., bl., yel. 

 ' 



strumosa, 9 ' to IS'-' , Film., 

 hdy. aim., colours 

 various, several vars. ; 

 compacta, wh., is good. 



floribunda, l',sum., auu., 

 wh. 



feetens, 2 , Je., hdy. per., 



pur. 

 versicolor, 1', sum., aim., 



lil., wh. 



PJiolo : Cassell & Company. TM. 



NELUMMI M SPECIOSUM. 



NEMOPANTHUS. (MOUNTAIN HOLLY.) 

 A crimson berry-bearing, hardy deciduous shrub 

 (irrd. Ilicineae). Propagation, by layers in autumn* 

 or by seeds. Soil, peat, leaf mould, and sand. 



Only Species : 



canadensis, :'.', My., wh. (syn*. Ilex canadensis, I. 

 delicatula, and Prinos integrifolius). 



NEMOPHILA. 



Pretty hardy annuals (ord. Hydrophyllaceae). 

 Seed can be sown in spring for summer bloom, or 

 in autumn for flowering in spring, and treated as re- 

 commended for hardy annuals (which see). Cats 

 are very fond of rolling on Nemophilas, and should 

 be kept off by some protection, such as sharp- 

 pointed sticks, among the seedlings. 



Principal Species and Varieties : 

 nurita, 1', Je., pur. vio. - grandiflora, bl., eye 



iiisigiiis, 1', sum., spr., bl., 



wh. eye. 

 alba, wh. 



wh 



- iniirgmata, bl., 

 edge. 



wh. 



