1010 



DIGITALIS 



DIMORPHANTHUS 



growth are used. Foxgloves are of the easiest culture. 

 The common species and hybrids can be grown as 

 biennials from seed. The perennial species are propaga- 

 ted by seeds or by division. The common D. purpurea 

 is best treated as a biennial, although it may sometimes 

 persist longer. Seeds sown one spring (or fall) will give 

 good blooming plants the following season. The large 

 root-leaves before the flower-stems appear are decor- 

 ative (Fig. 1265). 



A. Middle lobe of the lower lip longer than the others. 

 ferruginea, Linn. (D. aurea, Lindl.). Biennial or 

 perennial, 4-6 ft. high: sts. densely leafy: Ivs. glabrous 

 or ailiate: racemes long, dense; 

 fls. rusty red, reticulate-marked, 

 downy outside; lower lip of 

 corolla ovate, entire, bearded, 

 July. S. Eu. B.M. 1828. 



lanata, Ehrh. Perennial, or 

 biennial, 2-3 ft. Ivs. oblong or 

 lanceolate, ciliate : fls . rather 

 small, 1-1 Yi in. long, grayish or 

 creamy yellow, sometimes whit- 

 ish or purplish, downy, in a dense, 

 many-fld. raceme, with bracts 

 shorter than the fls. July, Aug. 

 Danube River and Greece. B.M. 

 1159 (poor fig.). A fine species. 

 sibirica, Lindl. Has the habit 

 of D. ambigua, with fls. like those 

 of D. lanata: Ivs. downy, ovate- 

 lanceolate, serrate or the upper 

 entire: fls. ventricose, villose, yel- 

 lowish; calyx- 

 s e g m s. linear, 

 villose. Siberia. 

 This is a rare 

 trade name, and 

 it is doubtful 

 whether this 

 little known 

 plant is really in 

 cult. 



Thapsii, Linn. 

 Plant much like 

 D. purpurea: 

 perennial, 2-4 ft. 

 high: Ivs. ovate- 

 lanceolate or ob- 

 long, rugose, de- 

 current: fls. purple, throat 

 paler, marked with red dots 

 in a lax raceme; calyx- 

 segms. ovate or oblong. 

 June-Sept. Spain. B.M. 

 2194 (as D.tomentosa'). 



AA. Middle lobe of the lower 

 lip shorter or hardly 

 longer than the others. 



ambigua, Murr. (D. 

 grandiflora, Lam. D. ochro- 

 leuca, Jacq.). Perennial or 

 biennial, 2-3 ft. high: Ivs. 

 ovate-lanceolate, toothed, sessile or clasping, downy 

 below: fls. large, 2 in. long, yellowish, marked with 

 brown; lower bracts about as long as the fls. Eu., 

 W.Asia. B.R. 64. 



1266. Digitalis purpurea. 

 (XHD 



purpurea, Linn. (D. tomentdsa, Link & Hoffmgg.). 

 COMMON FOXGLOVE. Fig. 1266. The species most 

 commonly cult.: mostly biennial, but sometimes per- 

 ennial: height 2-4 ft.: Ivs. rugose, somewhat downy, 

 the radical ones long-stalked and ovate to ovate- 

 lanceolate, the st.-lvs. short-stalked and becoming 

 small toward the top of the st.: fls. large, 2 in. long, 



ranging from purple and more or less spotted, rather 

 obscurely lobed. On dry hills and roadsides, Great 

 Britain, W. and Cent. Eu., to Scandinavia, running 

 into white and modified forms in cult.; sometimes 

 escaped in this country. Gn. 34:488. Var. gloxiniae- 

 fl6ra, Hort. (D. gloxinioldes, Carr. D. gloxiniasflora, 

 Hort.). Of more robust habit, longer racemes, larger 

 fls., which open wider, nearly always strongly spotted. 

 Var. alba, Hort. Fls. white. Var. monstrosa, Hort., is 

 a double peloric form. P.G. 4:151. D. maculata 

 superba is a trade name for highly improved spotted 

 forms. Var. campanulata, Hort., is a monstrous form 

 with the upper fls. united into a bell-shaped large 

 bloom. 



D. Buxbaiimii is offered as a yellow-fld. species. D. dubia, Rodr. 

 Perennial, woolly: fls. slender, hanging, purplish, spotted inside. 

 Balearic Isls. G. 30:309. D. laciniata, Lindl. Perennial, woody, 

 2 ft. high: Ivs. lanceolate, jagged: fls. yellow, downy, with ovate, 

 bearded segms.; bracts much shorter than the pedicels. Spain. 

 B.R. 1201. D. tevigata, Waldst . & Kit. Perennial, 2-3 ft. 

 high: Ivs. linear - lanceolate, radical ones obovate- lanceolate: 

 fls. scattered, glabrous, yellow. Danube and Greece. D. lutea, 

 Linn. Perennial, glabrous: Ivs. oblong or lanceolate, denticu- 

 late: raceme many-fld., secund; corolla yellow to white, gla- 

 brous; calyx-segms. lanceolate, acute. Eu. B.R. 251. D. mar- 

 i&na, Boiss. Lvs. radical, very downy, ovate-oblong: fls. rose; 

 corolla bearded. Spain. D. purpurdscens, Roth. Biennal: fls. 

 yellow or sometimes purplish, pale inside, spotted at the mouth; 

 lower lobe of corolla short. Eu. D. purpiireo - ambigua is a 

 hybrid of D. purpurea var. gloxiniseflora and D. ambigua. 



F. A. WAUGH. 



DILIVARIA: Acanthus. 



DILL (Anethum graveolens, Linn.), an annual or 

 biennial plant of the Umbelliferas, the seeds of which 

 are used as a seasoning, as are seeds of caraway and 

 coriander. It is of the easiest cult, from seeds. It 

 should have a warm position. The plant grows 2-3 ft. 

 high: the Ivs. are cut into thread-like divisions: the 

 st. is very smooth: the fls. are small and yellowish, the 

 little petals falling early. It is a hardy plant. The 

 foliage is sometimes used in flavoring, and medicinal 

 preparations are made from the plant. The seeds are 

 very flat and bitter-flavored. Native of S. E. Eu. 



DILLENIA (named by Linnaeus for J. J. Dillenius, 

 1684-1747, botanist and professor at Oxford, author 

 of important botanical works ) . Dillenidces >. Tall 

 tropical trees from Asia, Indian Archipelago, Philip- 

 pines, and Australia. 



Leaves large, with pronounced pinnate parallel 

 venation: fls. showy, white or yellow, lateral, solitary 

 or clustered; sepals and petals 5, spreading; stamens 

 many, free or somewhat united at base, the anthers 

 linear, opening by 2 slits, the interior ones erect and 

 introrse and the exterior ones recurved and extrorse: 

 carpels 5-20, many-ovuled, in fr. becoming a fleshy 

 body inclosed in the enlarging calyx. Probably 40 

 species; allied to the Magnolia family. D. indica is 

 said to be the showiest of the whole family, being attrac- 

 tive in foliage, fl. and fr. Dillenias may be grown in 

 light sandy loam. Prop, readily by seeds, but with 

 difficulty from cuttings. 



indica, Linn. (D. specidsa, Thunb.). Trunk stout, 

 not high: branches numerous, spreading, then ascend- 

 ing: Ivs. confined to the ends of branches, on short, 

 broad, channelled sheathing petioles, the blade 6-12 

 in. long, oblong, or oblong-lanceolate, acuminate, 

 narrowed at the base, strongly serrate: sepals 5, thick, 

 fleshy, enlarging and inclosing the fr. ; petals obovate, 

 white, large, making a fl. fully 9 in. across; stamens very 

 numerous, forming a large yellow globe crowned by 

 the white, slender, spreading rays of the stigma: fr. 

 edible, acid, the size of an apple, many-celled and 

 many-ovuled. Trop. Asia. Intro, in Fla. and S. Calif. 

 B.M. 5016 (B.M. 44Q^Hibbertia volubilis). H.F. 1867 

 P- H9. WILHELM MILLER. 



DIMORPHANTHUS: Aralia. 



