DIO 



189 



DIO 



their foliage, and may be referred to that 

 genus for culture and propagation. 



ar 1nS,te° mar " } Blu8 ■ C ' S - Her " K 1J Brazil ■ • 

 gracilis ... Bluo . 8, S. Her. P. 1 Brazil . . 



'mil'? 11 " 1 '' 1 " }Bl.wh. 6, S. Her. P. 1 Brazil. .1853 



ovalifblia . . Purp.. 6, S. Her. P. 1 Brazil. . 



ovata .... Bluo . 9, S. Her. P. 1 Brazil . . 1S46 



oxypetala . . Red . 8, S. Her. P. 1 Brazil . . 1810 



picta .... Blue . 9, S. Her. P. i S.Amer. . 1830 



puberula . . Blue . 8, S. Her. P. 3 Brazil . 1823 



thyrsifl&ra . . Blue . 8, S. Her. P. 4 Brazil . . 1822 



DichosEma, Bentham. From diehos, double, 

 and sema, a standard ; the standard is two- 

 lobed. Linn. 10, Or. 1, Nat. Or. Fab&cece. 

 This genus is nearly related to Ckoros&ma, and 

 requires the same treatment. Propagation is 

 by cuttings and seeds, 

 subinerme . Yel. red. 5, G. Ev. S. 2 Swan E. . 1851 



Dich6sma. Derived from dicha, without, and 

 osme, a smell. Linn. 5, Or. 1, Nat. Or. Ru- 

 t&cece. An ornamental species ; for culture, 

 &c, see Di6sma. Synonyms: 1, Di6sma 

 bifida. 

 bifida . . White . 5, G. Ev. S. 2 C. G. H. . . 



Dichosp&rittm, Nees. From diclut, double, and 

 spora, a sporule ; in allusion to the double 

 coat of the peridium. Linn. 24, Or. 9, Wat. 

 Or. Mucoracece. Au extremely minute species, 

 found on the bark of oak trees in autumn. 

 Synonyme: 1, Spumd/ria phymroides — aggre- 

 gatum 1. 



Dich<5tomotjs, a stem that ramifies in pairs. 



Dichroc^phala. See Grangea. 



Dichronema. See Schcenus. 



DlCKSduiA, L'Herilier. In honour of James 

 Dickson, a famous British cryptogamie bo- 

 tanist. Linn. 24. Or. 1, Nat. Or. Polypodia cece. 

 A very ornamental genus of ferns, containing 

 the tree-fern of St. Helena, which has often 

 been brought in a living state to this country, 

 but it rarely survives many months. The 

 species do well ill a mixture of loam and peat, 

 and are readily increased by divisions or seeds. 

 See Baldntium, Cibdtium, and Sitolbbium. 

 adiantoides Brown 11, S. Ev. 8. 2 W. Ind. . . 1S2S 

 antarctiea . Brown 9, S. Her. P. 2 N. Hoi. . . 1S24 

 arborescens Brown 9, S. Ev. T. 12 St. Helena . 17S6 

 Culolta . . Brawn 9, S. Her. P. 2 Madeira 

 davallioldea Brown 9, S. Her. P. 3 N. Hoi. . . 

 dissecta . . Brown 8, S. Her. P. 2 Jamaica . 1793 

 pilosiuscula Brown S, S. Her. P. 2 N. Amer. . 1S11 

 rubigindsa . Brown 9, S. Her. P. 2 Brazil 

 scandens . Brown 8, S. Her. P. 2 

 squambsa . Bn. yL 8, S. Her. P. 3 N. Zeal. . 



DiCLfPTERA, Jussieu. From dis, double, and 

 kleio, to shut; in allusion to the two-valvod 

 fruit. Linn. 2, Or. 1, Nat. Or. Acanthacece. 

 An ornamental genus, nearly allied to Juslicia, 

 to which genus it may be referred for culture 

 and propagation. See BarUria. 

 assurgens . Red . . 7, S. Ev. S. 1£W. Ind. . 1818 

 bivfflvis . . Purple . 6, S. Ev. S. i E. Ind. . 1818 

 ehinensis . Pa. blue 9, G. Her. P. 1 E. Ind. . 1815 

 hexangularis Red . . 7, S. A. 2 8. Amer. . 1733 



martinicensis Purple . 7, S. Ev. S. 2 W. Ind. . 1818 

 peetinata . Blue . . 6, S. Ev. S. 1 E. Ind. . 1798 

 peruviana . Purple . 6, S. Ev. S. 2 Peru . .1818 

 resupiuata . Wt pur. 3, S. A. 1 S.Amer. .1805 



retilsa . . Purple . 7, S. Her. P. 1JW. Ind. . 1821 

 scorpioldes . Purple . 7, S. Ev. S. 3 Vera Cruz 1802 

 verticillaris . Purple . 5, G. Ev. S. 1 C. G. H. . 1826 



DlC(5cC0US, having two cocci. 



Dicott ledones. Having two Cotyledons. 



DfcRANUM, JFIedwig. From dikranos, two- 

 headed ; in reference to the divisions of the 

 teeth of the capsule. Linn. 24, Or. 5, Nat. 

 Or. Brydcece. A fine genus of mosses ; many 

 of the species form broad masses of turfy vege- 

 tation, giving a beautiful character to the face 

 of the earth where they grow. They are found 

 at all seasons, and almost in every situation. 

 Synonymes : 1, HUpnum adiantoides ; 2, Di- 

 cranum mrldulwm, osmundioldes ; 3, D. pu- 

 sttlum, uncinatum; i, TricJidstomum piliferum ; 

 5, D. flagillare; 6, HUpnum laxifMium: 7, 

 I>. callistomum. See Didfimodon, Grlmmia, 

 LeHcodon, and Frichostomum — adiantoides 1, 

 bryoides 2, eerviculatum 3, crispum, falcatum, 

 flagellare, flave'scens, flexudsum, fulvellum, 

 glaucum, heteromallum, latifolium 4, longi- 

 folium, pollucidum, polycarpon, Sehreberi- 

 anum, scoparium, fusee'scens-majus, Scotti- 

 anum 5, spixrium, squarrdsum, Starkii, stru- 

 miferum, subulatum, taxif&lium, undulatum, 

 varium, luridum, rufescens, vlride 7, virens. 



Dicrypta, Lindley. From dis, double, and 

 hrypto, to conceal ; alluding to the structure 

 of the four pollen masses. Linn. 20, Or. ], 

 Nat. Or. Orchidacem. Curious species, with 

 solitary flowers, requiring the same treatment 

 as Stanhdpea. Synonymes: 1, Reterotdxis eras- 

 sifdlia, L>. crassffdlia. 



Baueri 1 . Yellow . 6, S. Epi. 1 Jamaica . 1823 

 blcolor . . . Yel. blk. . 8,.S. Epi. 1 Demerara. 1834 

 discolor . . Orange . 8, S. Epi. 1 Demerara. 1834 

 iridifolia . . Yel. spot. 8, S. Epi. 1 Trinidad . 183S 



DlCTAMNUS, Linn. An ancient name supposed 

 - to have been given because the leaves resemble 

 those of the Ash ; hence the English name, 

 Fraxine.Ua. Linn. 10, Or. 1, Nat. Or. RvMcece. 

 A genus of very ornamental plants, deserving 

 a place in every flower-border. D. Fraxinilla, 

 when rubbed, emits a fine odour, something 

 like that of lemon-peel ; this fine scent is 

 strongest in the pedicels of the flowers. The 

 species succeed well in any common garden 

 soil, and may be increased by seeds, which 

 ripen freely. The roots were formerly es- 

 teemed as a sudorific and vermifuge. Syno- 

 nyme : 1, B. dlbus. See also Origanum Dic- 

 tdinnus. 



fflbus . . . .• White 6. H. Her. P. 3 Germany 1596 

 angustifblms . Lilac . 6, H. Her. P. 2 Altai . 1S21 

 elegans . . . Red . 6, H. Her. P. 2 Germany. 

 Eraxinella 1 . Purp. 6, H. Her. P. 3 Germany 159S 



DlCTYANTHUS, ford. From diktyon, a net, and 

 anthos, a flower : the flowers are netted with . 

 purple veins. Linn. 5, Or. 2, Nat. Or. Ascle- 

 piadacece. Climbing plants of considerable 

 beauty, capable of bearing the open air in 

 summer, but must be sheltered in a warm 

 greenhouse or stove in winter. The treat- 

 ment is the same as for AscUpias. Synony- 

 mes: 1, Stapelia campanulata, Tympandnt/ie 

 suberbsa. 



campanulatus . Whtpur. 6, S. CI. S. 10 Brazil . 1S51 

 Pavonia . . . Gr. brn. 8, S. CI. S. 10 N.Spain 1S53 



DlCTYDlUM, Schroder. From diktyon, a net, 

 and eidos, similar, alluding to the resemblance 



