DREER 



DEYMOPHLCEUS 



507 



and had six children. Of the two sons, one died in infancy, 

 and the other, William P. Dreer, conducts, at 714 Chest- 

 nut street, the business which is Incorporated in the 

 name of his father. Henry A. Dreer died of a nervous af- 

 fection of the heart. He was of modest temperament 

 and frail constitution, and confined himself to business 

 rather closely. He was liberal in public matters, but 

 always kept out of political life. He compiled several 

 small works in connection with the business, and wrote 

 frequently for the Weekly Saturday Evening Post, of 

 Philadelphia, and for Godey's Ladies' Magazine. 



W. M. 



740. Showing how the drains may be eathered into 

 one when there is only one place at which an 

 outlet can be secured. 



DBOPWOET. Spircea Filipendula; also Potentilla 

 Filipendula. 



DB6SEBA (Greek, dew; referring to the dew- like 

 drops on the glandular leaves). Droserdcece, Sundew. 

 Dew PTiAnt. A very interesting group of insectivorous 

 plants. About 100 species scattered throughout the 

 world, except the Pacific islands, and most common in 

 Australia outside the tropics. Perennial bog herbs with 

 basal Ivs. clothed with glandular hairs, which secrete a 

 fluid that holds insects fast. Foliage and inflorescence 

 differ widely. The 3 species described below may be ob- 

 tained through dealers in native plants. For culture, 

 see Darlingtonia. 



A. Lvs. thread-like, with no distinct stalk: petals 

 purple. 



{iliI6Tmis, Rafin. Lvs. 6-15 in. long, glandular-pubes- 

 cent throughout, at the very base woolly with brown 

 hairs : racemes 1-sided, 10-30-fld. : 

 fls. 4-12 lines broad. July-Sep. 

 Wet sand near the coast. Mass. to 

 Fla. 



AA. Lvs. with an oblong Hade : 

 petals white. 



longifdiia, Linn. Lvs. long-pet- 

 ioled ; blade 8-15 lines long, 1 M-2 

 lines wide, the petiole glabrous. 

 Summer. Bogs, northern and arc- 

 tic regions. 



AAA. Zfvs. with a blade that is 



wider than long : petals white. 



rohmdiJdlia, Linn. Fig. 741. Lvs. 

 with a blade 3-6 lines long, glan- 

 dular above, petiole %-2 in. long, 

 pubescent but not glandular : ra- 

 cemes 4-12-fld. : fls. about 2 lines 

 broad, opening in sun- 

 shine. July, Aug. Bogs, 

 Labrador to Alaska, 

 south to Fla. and Ala., 

 and in the Sierra Ne- 

 vada to Calif. 



Other Droseras are to be 

 expected in fine collections, 

 and some of them are more 

 showy than those men- 

 tioned above. Some of the , , q„„ j,„_ 

 best are as foUows: D. U- 741. Sundew 

 nMa, Labill., of Austral. Drosera rotundifoha (X>S). 



and N. Zeal., with lvs. deeply parted into 2 long, linear lobes. 

 Prop, by root-euttings. B.M. 3082.— X>. Capensis, Linn., of S. 

 Afr., has linear or strap-shape leaf-blades as long as the petiole, 

 and large (1 in. in diam.), rosy red fls. Prop, by root-cuttings. 

 B.M. 6583. —D. dichdtoma, Hort. = D. binata. — D. linearis, 

 Goldie, Lake Superior and W., has linear-obtuse lvs. on naked, 

 erect petioles, and purple fls.— Z>. spaAhulMa, LabUl., Austral., 

 N. Zeal., has short, oblong-spatulate lvs. In a rosette, narrowed 

 into short petioles, and purpUsh fls. Q-.C. 1881, 16:852. 



W. M. 



DETTPE. A fleshy fruit containing a single seed with 

 a bony covering or "stone," 

 as a plum. Fig. 742. A Drupe 

 resembles an akene in being 

 1-sided, and not splitting, but 

 an akene is dry instead of 

 pulpy or fleshy. The most 

 important drupaceous or stone 

 fruits are peaches, plums, 

 apricots, cherries and rasp- 

 berries. Each of the fleshy 

 parts of a raspberry is a 

 drupelet. 



742. Young drupes (apri- 

 cots), cut in two, show- 

 ing ovules. Nat. size. 



In drapes of the genus 

 Prunus there are two 

 ovules, but usually only 

 one matures. 



DB'^AS (Greek, wood- 

 nymph). JiosdcecE, A genus of 

 2 or 3 species of dwarf, hardy, 

 tufted, evergreen, somewhat 

 shrubby plants with oblong lvs. half an inch long, 

 recurved at the margins, shining above, snowy white 

 beneath, and large white or yellow fls. borne singly on 

 slender scapes: calyx glandular-hairy : petals 8-9, 

 broadly obovate: stamens many. The genus is close to 

 Geum, but the species of Geum are herbs with deeply 

 cut foliage. J. W. Manning recommends a soil well 

 furnished with peat. 



Dryas octopetala requires a well drained, porous soil, a 

 sunny but not dry position. It is well to shade the foli- 

 age from bright sun during the winter months with 

 evergreen branches to prevent the foliage from having a 

 scorched appearance. A capital plant for the rockery. 

 Prop, by cuttings, division, or by seed. 



octop6tala, Linn. Lvs. oblong, deeply and regularly 

 crenate, downy beneath: scapes 2-3 in. long: fls. white: 

 seeds with a feathered awn over 1 in. long. North tem- 

 perate and arctic regions. j. g. Kellek. 



DBTMOGLOSSTTM. A genus of small ferns from 

 Japan, with wide creeping rootstalks, and small, entire 

 leaves : sori resembling those of Polypodiiun. None 

 are advertised in America. Three or four kinds are 

 cult, abroad. l. ji. Undekwood. 



DETMOPHLffiUS (Greek words meaning oak and 

 smooth inner bark). Palmdcece, tribe Aricece. This 

 genus contains a tropical palm, with very distinct wedge- 

 shaped leaflets and ornamental scarlet fruits, borne 

 every year. It flowers when only a few feet high, and 

 is suitable for pot culture. Spineless palm, with slender, 

 medium caudex: lvs. terminal, equally pinnatisect, the 

 segments cuneate-oblong or linear, broadly oblique, sub- 

 membranaceous, 3- to many-nerved, the margins re- 

 curved at the base: rachis scaly, 3-sided: sheath long: 

 spadis with a short peduncle and slender branches,: 

 spathes 2 or many, the lower one 2-crested. Species 12. 

 Australasia and the Pacific islands. 



The chances are that most of the plants now known to 

 the American trade as D. oUvaformis are really D. ap- 

 pendiciilata. The true D. olivceformis is said to have 

 been offered by a few dealers as Ptychosperma Bvmphii. 

 D. appendiculata was described and figured by William 

 Watson, in Garden and Forest, erroneously as D. oUva- 

 formis, as explained in B.M. 7202. He adds, "Like 

 all the pabns of this section of the order, Drymophlceus 

 requires a tropical moist house with abundance of water 

 at all times." The plant figured was about 14 years old, 

 3 ft. high, with lvs. about 3 ft. long. The plant takes 

 about six months to mature its fruits. 



appendiculikta, Scheff. (Areea gracilis, Griseke, not 

 Eoxb. or Thou.). Leaflets wedge-shaped, raggedly cut, 

 serrate. Moluccas, New Guinea. B.M. 7202. G.F. 4:331. 



D. olivcefdrmis, Mart., has narrower leaflets than the above^ 

 and the fruit half immersed in the greatly enlarged perianth. 

 Jabed G. Smith andW. M. 



