Dianthus 



( 292 ) 



Dibber 



does not like the midday sun. Most of them 

 ought to be top-dressed with sand and leaf mould 

 once or twice a year. 



Principal Species : 



alpinus, 4', Je., red. Au 

 exquisite little Alpine, 

 but not usually long- 

 lived, from want of top- 

 dressing. 



barbatus, 1', Je., Tar. 

 bien. The Sweet Wil- 

 liam. Well known to 

 everyone. 



caesius, <i", ,Ty., pale ro. 

 The Cheddar Pink ; a 

 pretty little Pink, which 

 likes limestone (see p. 

 293). 



callizonus, 6", Jy. , ro. pk. 

 A charming little flower. 



Caryophyllus (sec Carna- 

 tion). 



cinnabarinus, 9", ,Ty., 

 red. A beautiful, elect 

 grower. 



crueutus, 1',', Jv., sc. 



deltoides, 6", Je., etc., 

 pk. The Maiden Pink ; 

 there is a wh. var. also. 



glacialis, 3", Je., red. A 

 favourite with Alpine 

 growers, but difficult to 

 manage. S.W. aspect, 

 loam, leaf mould, and 

 sand. Vars. gelidus and 

 Freynii. 



neglectns, 3", Je , ro. 

 Another pretty species. 



petneus, 6' , Jy., wh. A 

 charming species, with 

 fringed flowers. There 

 is a pretty double form. 



plumarius (sec Pink). 



superbus,2',Aug. .whitish. 

 Very beautiful, but 

 practically a bien. It 

 has many syiis. and 

 forms. 



Hybrids and Varieties : 



There are many hybrid and seedling forms from 

 various parents under garden names. The Mule 

 Pinks, such as Napoleon III., Marie Pare, Emily 

 Pare, Eugenie, etc., are pretty, and others, such as 

 Beauty, Fettes Mount, M. Foster, Cyclops, and 

 Atkinson!, are desirable. 



Other Species : 



arboreus, 1*', Jy. , hlf- 



hdy. per., pk. 

 arenarius, G", Aug., pur. 

 Anneria, 1', Je., ann.,ivd. 

 armerioides, 1', Je., red. 

 atrorubens, 1A', Jy., 



crim. 



atteuuatus, 6", Jy. , red. 

 braehyauthus, 3', Je., pk. 

 burchtormeusis, 1', Jy. , 



red. 

 campestris, 1', Aug., red, 



wh. 



capitatus, l\', Aug., pur. 

 carthusianorum, 11', Jv., 



red. 

 chinensis, 1', Jy. , bien., 



red. Var. Atkinsoui 



(/. Seguieri, den- 



tosus, etc.). 

 ciliatus, H', Jy., pk. (XI/H. 



racemosus). 

 Cyri, 1', Je., red. 

 divaricatus, 1', Aug., pur. 

 dubius, My., wh., pk. 

 erubescens, Jy. , pale ro. 

 ferrugineus, H', Jy., 



bright red. 



fimbriatus, I. 1 ,', Jy., br. 

 floribundus, 1', Jy., ro. 



pk. 



fragrans, 1', Aug., wh. 

 fruticosus, li', Jy., pk. 

 furcatus, 9", Jy., red. 

 gallicus, 9", Aug., pur. 

 giganteus, 3', Aug., pur. 

 glaucophyllus, l',Jj-.,red. 

 gracilis, G", Jy., ro. 

 graniticus, G", Je., rod. 

 hendersonianus, 1', Jy., 



crim. : of gardi'ii origin. 

 hirtus, 1', Jy. , rod. 



Hoeltxeri, Jy. , pk. ; a var- 



of superbus. 

 Horuemauuii, 1', Aug., 



red. 



leptopetalus, ii', Jy., wh. 

 Libaiiotis, 3' , Jy . , wh. 

 lihoschitzianus, 9", Jy., 



wh. 

 lihuniicus, 1', Aug., red. 



Knappii, yel. 

 longicuulis, 1', Aug., wh. 

 microlepis, 3", Je., red, 



wh. 



monspessulanus, 1', Jy. , 

 red. 



albus, wh. 



alpostris (see p. 294). 

 multipunctatus, 1', Je. 

 nitidus, G", Jy., pk. 

 noeanus, 1', Jy., wh. 

 pallidifiorus, 9", Jy., pur. 

 pelviformis, 1', Je., red. 

 pinifolius, 2", HI. 

 polymorphus, l',Ap.,red. 

 prostratus, 6", Sep., hlf 



hd} T . per., red. 

 pungens, 1', Aug., pk. 

 rigidus, 9", Jy., red. 

 rupicolus, 1', Je. , red 



(8yn. Bisiguani). 

 siculus, 9", Aug., red. 

 sqiiarrosus, 6", Je., wh. 

 Stcrnbergii, 1^', Je., pk. 

 strictus, 6", Jy. , wh., 



pur. (/. integer), 

 simveolens, 1', Jy., wh. 

 sylvaticus, 1$', Je., red. 

 sylvestris, 1', Jy., ro. 

 tener, 6", Jy. , red. 

 viscidus, 6"," Jy., pur. 

 zonatuB, 9", 'Jy., wh , 



zoned br. 



DIAPENSIA. 



Diminutive, cu.-hion-like, hardy shrubs (ord. Dia- 

 pensiaceas). Only one of the two known species is 

 in cultivation, and that is both shoice and rare. 

 Propagation, by seeds or division of the tufts. 

 Soil, sandy peat, in a cool. 'shady situation on the 

 rockery. A reserve should be kept in frames and 

 grown in pots. 



Principal Species : 



xidan- lapponica, 3", Jy. , wh. 



barbulata (now Pyxi 

 thera barbulata). 



DIASCIA. 



Slender, erect or diffuse, greenliou.se 'annuals, 

 rarely perennials (ord. Scrophularineai). Flowers 

 white or rose. Propagation, by seed in spring, like 

 half-hardy annuals, to be planted out later on in 

 any friable, light garden soil. 



Principal Species : 



Barberse, 1', Jy., ro. pk. 



Photo: Cassell& Company, Ltd. 



DlAXTHUS STUICTUS. 



DIASTEMA. 



Perennial stove herbs (ord. Gesneracere), of 

 dwarf habit, with creeping rhizomes. Propagation, 

 by cuttings of the young, growing shoots in heat, 

 under a bell-glass, and by division of the rhizomes. 

 Soil, loam and peat in equal parts, with sand. 



Principal Species :- 



quinquevulneruin, Aug., 

 wh. , pk. 



ochroleucum, 1', Aug 



yel. 



pk'hnn, 9", wh. , pur. 



DIBBER, OR DIBBLE. 



The commonest and most useful form of this 

 tool or instrument is that represented by the 

 handle of a spade cut 12" or 15" below the head, 

 and pointed. The tool is, in fact, often made from 

 old spade handles. If the point is shod with iron 

 it will last longer, and, while easily kept clean, will 

 pierce the soil more readily when the latter is hard, 

 heavy, or wet. Hundreds are in use, however, that 

 are unshod. By lightly charring the point with fire, 



Dmspis ($?e Scale Insects'). 

 Diastella (me Lciicnspermmii). 

 Diastemanthe (see Stenotajthnnti). 

 D'Msteiiiclla (sec fJin.xtema). 

 Diatoma (sec Carallia). 



