DIOSPYROS 



burghi). — Vcir. costita, Mast. Fr. large, depressed, 

 globular, orauge-red, with 4 furrows. R.H. 1870:410. 

 G.C. 11.4:777; III. 9:171; 13:51. Gn. 49, p. 171. Var. 

 Ilaz61i, Jlouillef. Fr. orange-yellow, with 8 furrows. 

 R.H. 1874:70. Other varieties are figured In R.H. 

 1872, p. 2.")4; 1878:470; 1887;348; 1888:60, and A.G. 

 12:3.31-8,459-62. A very desirable and beautiful fruit- 

 bearing tree for the southern states, where a number of 

 different varieties introduced from Jap. are cultivated, 

 but the hardier varieties from the north of Jap. and 

 China, which are likely to be hardy north to New England, 

 seem hitherto not to have been introduced. Fig. 715 is 

 from Georgeson's articles in A.G. 1891. 



AA. Irfs. small, obtuse or emarginafe : corolla and 

 cali/x 5-lohed. 



Tex^na, Scheele {D. Mexicina, Scheele MS.). Small 

 tree, intricately branched, rarely to 40 ft. : Ivs. cuneate, 

 oblong or obovate, pubescent below, 1-2 in. long: fls. 

 with the Ivs., pubescent, on branches of the previous 

 year, stamiuate with 16 stamens, pistillate with 4 pu- 

 bescent stvles, connate at the base: fr. black, M-1 in. 

 indiam. .Spring. Tex., N. Mex. S.S. 6:254. 



D. Ebinum, Koenig. Tree, to 50 ft.: Ivs. eUiptic-oblong, 

 bluntly acuminate, gl.ibrous: fls. white, staminate, in short ra- 

 cemes. E. Ind., Ceylon. For cult. In hothouses or tropical cli- 

 mates. This species is said to yield the best ebony. 



Alfred Rehder. 



DIPLADENIA 



Outer perianth-segn 



lied. 



longer than the 





HlamentdBUm, Medic. (D. vlride, Moench). Lvs. 5-6, 

 fleshy-herbaceous, narrowly linear, glabrous, 1 ft. long, 

 lJ^-3 lines wide near the base: scape 1-2 ft. high: 

 raceme loose, 6-15-fld. : bracts linear-acuminate, 4-6 lines 

 long: perianth green, 12-15 lines long, outer segments 

 4-6 lines longer than the inner: capsule sessile. S. Afr. 

 W. M. 



DIPHYLLfilA (Greek, double leaf). £erberidAcece- 

 Umbrella Leaf. An interesting hardy perennial herb 

 with thick, creeping, jointed, knotty rootstocks, send- 

 ing up each either a huge peltate, cut-lobed, umbrella- 

 like, radical leaf on a stout stalk, or a flowering stem 

 bearing two similar (but smaller and more 2-cleft) alter- 

 nate lvs., which are peltate near one margin, and a 

 terminal cyme of white fls.: sepals 6, fugacious: petals 

 and stamens 6 : ovules 5 or 6 : berries globose, few- 

 seeded. This is one of many genera having only 2 spe- 

 cies, one of which is found in N. E. North America, the 

 other in Japan. There is a wonderful similarity between 

 the floras of these 2 regions, and few areas have pro- 

 duced so many plants esteemed in cullivation. 



cymdsa, Michx. Root-lvs. 1-2 ft. across, 2-cleft, each 

 division 5-7-lobed; lobes toothed: berries blue. May. 

 Wet or springy places in Alleghanies from Va. south. 

 B.M. 1666. -Int. into general trade by H. P. Kelsey. 

 Grows readily in dry soil under cultivation, but is dwarf. 



DIPLADfiNIA (Greek double gland, referring to the 



glands of the ovary which distinguish this genus 



from Echites ) . Ajtocyndcem. A 



charming genus of coolhouse twiners, 



ostly from Brazil, with large, showy 



DIPCADI (meaning uncertain). Liliilcem. Tender 

 bulbous plants of minor importance, allied to Galtonia, 

 with radical, thiekish, nanowly linear lvs. and loose 

 racemes of odd-colored fls. on leafless scapes. About 20 

 species in southern Europe, tropical and south Africa 

 and India. During the winter, their resting time, the 

 bulbs should be kept dry. A compost of light, sandy 

 loam and leaf -mold has been recommended. Latest mon- 

 ograph in Latin, 1871, by J. G. Baker, in Journ. Linn. 

 Soc. 11:395: the South African species in English by 

 Baker, in Flora Capensis, vol. 6 (1896-7). 



a. All perianth-segments equally long. {Tricharis.) 

 serdtinum. Medic. Lvs. 5-6, fleshy-herbaceous, gla- 

 brous, narrowly linear, 6-12 in. long, 2-3 lines wide near 

 the base, channeled on the face: scape 4-12 in. long: ra- 

 ceme loose, 4-12-fld.: bracts lanceolate, 4-6 lines long, 

 longer than the pedicels: perianth greenish brown, 5-6 

 lines long: ovary sessile or subsessile. S. Eu., N. Afr. 

 B.M. 859. 



white or dark red, but especially rich 

 in rosy shades and with throats often 

 brilliantly colored with yellow. The 

 buds too are charming. The genus is 

 t Ih as interesting as AUamanda, 



1 1 h belongs to another tribe of the 

 ] Older. Other allied genera of 



I it gvrden interest are Echites, 

 Oiitadenia, Mandevilla and Urechites. 

 Some species are naturally erect 

 bushes at least when young, and 

 many c m be trained to the bush 

 form The group is a most tempting 

 one to the hybridizer. An all-yellow- 

 flowered kiml is desirable. Many names 

 appear in European catalogues, but 

 they are badly mixed, as the genus 

 greatly needs a complete botanical re- 

 vision Very many pictures are found 

 m the Euiopean horticultural periodi- 

 cals. Several prizes for American seed- 

 lings have been taken at Boston, by Geo. 

 MoWilliam, Whitinsville, Mass., who 

 has given a full account of his cultural 

 methods in Gardening, 5:18 (1896). 



Although Dipladenias are natives of the tropics, they 

 grow at high altitudes, and it is a mistake to keep them 

 in close, steaming hothouses, as many gardeners do in 

 the Old World. The writer has kept them in a house 

 whose temperature was never above 50° F., and fre- 

 quently went down to 40° on winter nights. Cuttings 

 should be rooted in winter, and the young plants planted 

 outdoors during the summer, being careful not to bury 

 the crowns deep in the soil. They can endure 5 degrees 

 of frost without losing their foliage, but even after 7 

 degrees of frost and complete loss of foliage, the plants 

 have been lifted, brought into the greenhouse, and 

 flowered with success. A good specimeu will have 

 50-80 open fls. at one time. Tufts of fern root are ex- 

 cellent for potting soil, with some sharp sand added. A 

 fine specimen may be grown in a pan 2 ft. across and 

 9 in. deep. Plants never need shading. In late fall, as 

 the nights get cooler, the water supply may be gradually 

 reduced until the middle of November, when water is 



