Dasylirion 



( 281 ) 



Davallia 



DASYLIRION. 



Elegant greenhouse evergreens (ord. Liliaceai) 

 that may be raised from seeds, and thrive best in 

 rich mellow loam and mortar rubble, with free 

 drainage. 



Principal Species : 



acrotrichum, 8', wh. (si/ns. D. gracile, Bonapartea 

 gracilis, and Barbacenia gracilis). 



Other Species : 



glaucophyllum, 12', wh. 



(XI/H. giaucum). 

 Hookeri, ,T, pur. (*//*. 



D. hcirtwegianum and 



Beauearnea Hook- 

 eri). 



lougifolium (see Noliua 

 loiigifolia). 



DATISCA. 



A hardy herbaceous perennial (ord. Datiscese) 

 that will grow in any fertile soil, and may 

 be increased by division. Cannabina produces 

 greenish yellow llowers in summer ; height 0'. 



DATURA. 



Description. Ornamental shrubs or trees 

 and annuals (ord. Solanacese), those of shrubby 

 or tree-like habit being the most valuable for 

 garden purposes. They have handsome flowers 

 and generally curious fruit. The shrubby 

 Daturas, gene-rally known as Brugmansias, are 

 pretty on pillars or in bush form in large 

 greenhouses or conservatories ; the annuals 

 are effective in borders, and a few of the 

 jihcrs. such as suaveolens, may be placed out 

 in summer for effect. 



Propagation. The shrubby species by 

 cuttings or shoots about 0" or 8" long, the 

 lattrr removed with a. heel, and struck in 

 sand and loam in a bottom heat of not less 

 than GO". The annuals by seeds sown in a 

 hotbed or warm house and grown in pots 

 until ready to plant out. 



Soil. - A rather sandy soil suits them 

 best, but they must have liquid manure oc- 

 casionally to keep them growing in summer. 



Other Cultural Points. The shrubby 

 section require a good growing heat in summer, 

 but may be kept cool and rather on the dry 

 side in winter. Prune after flowering. 



Principal Species and Varieties : 

 arborea, 10', Aug., grh. shr. ; handsome, 

 chlorantlia, 10', My., grh. shr., yel. 



rlore pleno, double, fine, 

 cornigera. 10', Jy., grh. shr., wh. 



flora pleno, ornamental, 

 fastuosa, '2', Jy., aim., 



bl., wh. 



flore pleno, double. 



rubra, red. 



lletel, 2', Je., aim., wh. 

 sangiiinea, 10', Aug., grh. 



DAUBENYA. 



Pretty little frame or greenhouse bulbs (ord. 

 Liliaceae), which grow in light soil and are prop- 

 agated by offsets. After their leaves ripen they 

 should be kept dry until they begin growth again. 



Principal Species : 

 aurea, 3", Je., yel. fulva, 6", Je., dull yel. 



DAUCUS. 



A small genus of hardy annual or biennial plants 

 that are of little value, with the exception of 

 Carota, a British species from which the Carrot 

 has been evolved. (See CAHROT.) 



DAVALLIA. 



Description. A large and important genus of 

 Ferns (ord. Filices), chiefly natives of the Tropics, 



Other Species and Varieties : 



tree, sc. ; there is a yel. 

 form (//. bicolor). 

 suaveolens, 12', Aug., 

 grh. hr., wh. ; hand- 

 some and fragrant (*//>/. 

 Knightii). 



ceratocaula, 13', Jv., ami.. 



wh. 



fi-rox, 2', Aus., aim., wh. 

 im-tcloidi-s, 2', Je., grli. 



sin-.. VIM. wh. ("i/n. 



Wrishtii). 

 <juen-it'ulia,2',.Iy..ann..vio. 



Stramonium, Thorn 

 Apple, 2', Jy., aim., wh. 



tla va, pale yel. 



Tatula, 111. Gigunteu is 

 a var. 



Wriglitii (see meteloides). 



DtuyftamoH (of de Cnndolle, see Crassula). 

 Jlasi/slcpliana (see (lerardia). 

 Date Palm (sec I'lurnh; dacli/lifera). 

 Jtiile Palm, Prickly (gee Acanf/ioji/urnix). 

 lin'i' 1'litiii (.<:<! Diiixjii/rns Kalei). 

 Uate, \\' lid (sec J'/nr/ii.r 



DATTKA SVAVEOLENS. 



anvl thus for the most part needing a stove tempera- 

 ture. Over a hundred species of Davallias have 

 been described in the Synopsis f'iliiinn, and several 

 small genera, such as Acrophorus, Humata, Leuco- 

 stegia, Loxoscaphe. Jlicrolepia, Adontoloma, Pro- 

 sajitia. Scyphularia, and Stenoloma, have now 

 been merged in this one genus. 



Propagation. By spores in all cases, and by 

 division of the creeping rhizomes in the case of 

 large plants the popular canaricnsis may be easily 

 increased in this way. Some care is necessary to 

 fix the rhizomes to the new compost. They should 

 not be buried, but the soil should be made linn, 

 and the rhizomes fastened down by small pi-gs 

 of either wood or copper wire. 



Soil. Equal parts of fibrous loam and leaf soil, 

 with sand. A little live sphagnum is a good 



Datibcntonia (sec Sobania). 



