DATURA 



DAVALLIA 



461 



species botanioally, being founded on a very double 

 garden form of unknown origin. In Vilraorin's Blumen- 

 gartnerei it is referred to D. hitmilix. Desf., but />. /n<- 

 milix, according to Index Kewensis, is to be referred to 

 D. 



682. Pods of Datura Stramonium (X 



AA. Fls. white, sometimes touched with violet. 



B. Plants tall, 7-15 ft. high : blossoms pendulous. 



c. Calyx tubular, with 5 obscure teeth. 

 suaveolens, Hunib. & Bonpl. (D. Gdrdneri, Hook.). 

 ANGEL'S TRUMPET. This is the plant which is usually 

 cultivated as D. arborea. It is said to be very distinct 

 from the true D. arborea of Linn., but it can be sepa- 

 rated with certainty only by the calyx. Tree-like shrub, 

 10-15 ft. high: Ivs. ovate oblong, 6-12 in. long, 2%-4 in. 

 wide, entire, glabrous, petioled, often unequal at the 

 base: fls. 9-12 in. long; calyx inflated, angled, glabrous, 

 with 5 obscure teeth; corolla tube plaited, the limb with 

 5 short lobes; anthers crowded together. Mex. G.C. III. 

 11:593; 23:71. S.H. 2: 433. Franceschi says it resem- 

 bles D. cornigera in habit and fls., but the Ivs. and 

 steins are almost glabrous, and the calyx lacks the char- 

 acteristic spur-like appendage of D. cornigera. The 

 double form is much commoner in the gardens than the 

 single. 



cc. Calyx spathe-like, not toothed. 



arborea, Linn. (Bntgmdnsia arbdrea, Steud.). 

 ANUKL'S TRUMPET. Small tree: Ivs. ovate-lanceolate, 

 margin entire, never wavy or angled, pubescent, in 

 pairs, one a third shorter than the other; petioles 1 in. 

 or more lon#: fls. with a musk-like odor; calyx tubular, 

 entire, spathe-like, acuminate; corolla tube terete, the 

 loles of the limb very long; anthers distinct, not con- 

 glomerate. Peru and Chile. G.C. II. 11: 141. Most of 

 the plants cult, under this name are presumably D. sua- 

 veolens. The extent to which the true D. arborea is 

 cultivated is undetermined. 



BB. Plants less tall, only 2-5 ft high. 



c. Blossoms erect: calyx not spurred. 



D. Corolla 5-toothed. 



fastuosa, Linn. (D. and B. cornucopia, Hort. ) . Fig. 681. 

 Annual, 4-5 ft. high, herbaceous: Ivs. ovate-lanceolate, 

 acuminate, acute and unequal at the base, toothed or 

 wavy, glabrous on both sides, solitary, upper ones in 

 pairs, one of which is hirrer, 7-8 in. long, 2/^-3/4 >n. 

 wide: petioles 1^-2% in. long: fls. 6^-7 in. long, violet 

 outside, whitish within; calyx purple, angled, 2 in. long, 



5-toothed, the teeth triangular lanceolate, acuminate, 5 

 lines long, 2-3 lines wide. Native of India. Naturalized 

 in the tropics of both worlds. F.S. 14:1457. Gn. 4(J: 978 

 and I.H. 42: 25. There is a variety Huberiana. This is 

 the commonest of all Daturas in eastern gardens. 



DD. Corolla 10-toothed. 



meteloides, DC. (D. Wright ii, Hort.). Perennial (cult, 

 as an annual north): branches slender, forked: Ivs. 

 ovate oblong, almost entire, acuminate, acute at both 

 ends, not cordate or angled, upper leaves often in pairs, 

 the larger 2-2% in. long, 8-9 lines wide; petioles thick- 

 ened at the base, 4-5 lines wide : calyx tubular, the teeth 

 large, 5-10 in. long, very acute, unequal; corolla about 

 4-8 in. long, or twice as long as the calyx, 10-toothed, 

 the teeth short. California. Gt. 1859:260. R.H. 1857, 

 p. 571. Misspelled metalioides, etc. The name means 

 "like D. Metel" which is a common plant in S. Europe. 

 "/>. meteloides is a perennial, spreading over the ground 

 in large clumps: Ivs. greyish dull green color: fls. stand- 

 ing erect, white, delicately tinged with light violet- 

 purple, not quite as fragrant as D. suaveolens. This can 

 be grown also as an annual, easily blooming the first 

 year from seed. The common statements that this plant 

 is an annual are incorrect." Franceschi. 



cc. Blossoms pendulous : calyx with a long spur. 



cornigera, Hook. (D. and B. Knlghtii, Hort.). Height 

 3-4 ft., branches downy : Ivs. chiefly at the ends of 

 branches, ovate, petioled, acuminate, margin entire, 

 wavy or angled: fls. pendulous, white or creamy white, 

 very fragrant at night, striated, 5-lobed, the lobes ter- 

 minated by a long awl-shaped spreading or recurved 

 point; stamens included. Mex. B.M. 4252. B. Knightii 

 seems to be only a trade name for the double form. Gn. 

 45: p. 549. Cornigera means horned or spurred, referring 

 to the character of the calyx, which easily separates this 

 species. "This and D. suaveolens are known as ' Flori- 

 pondio' to the Spanish -Americans, perhaps no other 

 plant being more popular with them." F. Franceschi. 



W. M. 



DAUCUS (ancient Greek name). LTmbelliferce. Per- 

 haps 25 annual and biennial herbs of very wide distribu- 

 tion. One or 2 species are native to N. Amer., and the 

 wild Carrot is an abundant old-field weed in the north- 

 eastern states. See Carrot. 



DAVALLIA (a personal name). Polypodiacece. A 

 large genus of mostly tropical ferns, usually with firm, 

 somewhat finely divided foliage and coriaceous semi- 

 cylindric indusia, which are attached at both the base 

 and sides. Some of the smaller species are largely used 

 for hanging baskets. For D. concinna and D. fcenicu- 

 lacea, see Loxoscaphe ; D. parvula, see Leucostegia : 

 D. platyphylla, see Microlepia ; D. stricta, see Steno- 

 loma; D. temiifolia, see Stenoloma; D. Tyermanni, see 

 Humata. L. M. UNDERWOOD. 



The diverse habits of growth of the many different 

 species of Davallias, and their good lasting qualities, 

 peculiarly fit them under ordinary care for decorative 

 purposes, where delicate and graceful plants are desired. 

 Among the many species, the following are most often 

 seen and best adapted for commercial purposes: D. bul- 

 lata, D. parvula, very dwarf ; D. pentaphylla, young 

 fronds of a dark bronzy green, and D. Tyermanni, are 

 well adapted for hanging baskets. D. dissecta and var. 

 elegans, D. concinna, D. Fijiensis and vars. plumosa and 

 majus, D. foeniculacea, D. solida, D. pallida (syn., 

 Mooreana) and D. pyjridata are adapted for large speci- 

 men plants. D. tenui folia and vars. stricta and Veitchi- 

 ana are desirable for fern dishes, because of their 

 dwarfish habit of growth and the ease with which they 

 may be raised from spores. 



Old plants of Davallia may be cut into a number of 

 smaller ones with a sharp knife. Planted firmly into 

 shallow pans and placed in a temperature of 60-65 F., 

 they soon develop into symmetrical plants. The rhizomes 

 should be firmly fastened to soil by strong copper-wire 

 staples, where they will root in a short time. To gain 

 a large number of small plants, the rhizomes should be 

 detached, cleaned from all soil and roots, laid on sand 

 and thinly covered with moss. Placed in a shaded posi- 



