PHILODENDRON 



PHLOMIS 



2585 



crimson within the tube. Brazil. B.M. 6813. P. Ilsemanii, 

 Hort. Lvs. oblong, cordate, dark green, splashed or marbled with 

 white, and sometimes tinged rose-pink. G.C. III. 43:289. P. 

 imperiale is mentioned in European trade-lists. Engler accounts for 

 only one P. imperiale (of Schott) and that he makes a synonym of 

 P. asperatum, Koch. Sander & Co. advertise P. imperiale var. 

 Laucheana: "a lovely trailing stove foliage plant, which is admirably 

 adapted for growing on pillars or wire shapes. It is quite distinct 

 from and greatly superior to the well-known P. imperiale. The 

 habit is much more graceful, the heart-shaped foliage smaller and 

 more elegant. Down the center, from either side of the broad light 

 green midrib, extend irregular blotches of dark green, projecting 

 into a clear glaucous color, the edges of which are relieved by green 

 blotches. The bases of the petioles bear bright red and green phyl- 

 lodes." P. asperatum is a short-jointed climbing Brazilian species 

 with cordate-ovate entire dull green Ivs. P. Mdmei, Andrg. Lvs. 

 cordate-ovate, acute, variegated with white: spathe partly open 

 above and whitish, the tube blood-red. Ecuador. R.H. 1883, p. 

 104 and 492; 1897, p. 573. I.H. 43:66. P.pertusum is Monstera 

 deliciosa. P. Slmsii, Kunth. Lvs. coriaceous, elongated tri- 

 angular-sagittate, long-cuspidate, up to 20 in. long: spathe outside 

 black-purple on the tube, yellowish on the limb. Guiana. B.M. 2643. 

 P. tripartitum, Schott. (Anthurium insigne, Mast.). Lvs. 3- 

 parted, 6-7 in. long: spathe-tube oblong, the blade whitish, ovate, 

 shortly acuminate. Venezuela. P. Warscewlczii, C. Koch. Lvs. 

 triangular-sagittate, bipinnatifid, primrose, the lateral primary 

 eegms. 5-8 in. long. Cent. Amer. G.W. 10, p. 211. Gt. 59, p. 23. 



GEORGE V. NASH.| 



PHLEBODIUM (Greek, a vein). Polypodiacese. A 

 genus of ferns related to Polypodium and sometimes 

 united with it, but differing widely in the venation, 

 which is broken up into ample areoles, each of which 

 contain 2 or more free veinlets which bear the son on 

 their united tips. 



aureum, R. Br. (Polypodium aiireum, Linn.). Fig. 



2906. Roqtstocks thick, creeping on surface, densely 

 covered with bright yellowish scales: Ivs. 2-4 ft. long, 

 deeply pinnatifid, the lobes 5-9 in. long, j/-l in. wide, 

 with numerous bright yellow sori. G. 37:405. A rich 

 ornamental species of easy cult, from Trop. Amer. 

 with glaucous green Ivs. It produces, however, but a 

 small number of Ivs. to a plant. In Fla. it grows on 

 palmettos. Polypodium Mandaianum of the trade is a 

 wavy-lvd. form, which originated as a spore sport of 

 the species, P. aureum. It develops Ivs. of great beauty, 

 which last for a long time on or off the plant. Cut off, 

 they are used for florists' decorations. Polypodium 

 Schndderi, Hort., is said to be a hybrid of P. aureum 

 and Polypodium vulgare. 



P. glaitcum var. Mayii or P. Mayii. See Phymatodes. 



L. M. UNDERWOOD. 

 R. C. BENEDICT.! 



PHLEUM (Phleos, an old Greek name for a kind of 

 reed). Graminese. Perennial grasses, of great agricul- 

 tural value, but scarcely horticultural subjects. 



Spikelets 1-fld., in a close cylindrical spike-like panicle; 

 glumes 2,'persistent, keeled, short-awned ; lemma shorter, 

 delicate, awnless. -Species 10, in temperate zones. 



pratense, Linn. TIM- 

 OTHY. HERD'S-GRASS. 

 Figs. 2907, 2908. Com- 

 monly cult, for hay and 

 for pastures, either alone 

 or together with red 

 clover or other grasses. 

 It was intro. into Md. 

 about 1720 from Eu., 

 where it is native, by 

 Timothy Hanson, and 

 hence called timothy. 

 The other name is said 

 to come from a man by 

 the name of Herd, who 

 found it growing in N. 

 H. and began its cult. It 

 is better adapted for hay 

 than for pasture, and 

 for the latter is suited to 

 temporary rather than 



2907. Phleum pratense. Timothy. Permanent pasture. 

 To show habit of root and top. A. S. HlTCHCOCK. 



PHLOGACANTHUS (Greek for flame, and acan- 

 thus). Acanthaceae. Glasshouse plants grown for the 

 ornamental flowers. 



Tall half-shrubby herbs with entire or somewhat 

 toothed Ivs. : fls. white, red or greenish in long terminal 

 or short lateral spikes; calyx 5-parted; segms. linear, 

 awnlike, acuminate; corolla-tube long, broad, 

 curved; limb 2-lipped, upper lip erect, entire 

 or 2-lobed; lower Up 3-parted; perfect stamens 

 2, inserted on the lower part of the tube; 

 anthers with 2 parallel cells; ovary many- 

 ovuled: caps, round or obtusely 4-angled. 

 Species 12-15, India, Malaya, to New Guinea. 

 Several of the species have been more or less 

 cult, at one time or another. Used like the 

 others of the family as decorative pot-plants 

 in the greenhouse. They require a rather warm, 

 damp atmosphere and a soil rich in humus. 

 Prop, by cuttings or seeds. 



thyrsifldrus, Nees (Justicia thyrsiflora, 

 Roxbg.). Shrub, 3-7 ft. high: Ivs. 7 x 1% in., 

 lanceolate, glabrous: fls. orange, in long, dense, 

 villous thyrses; corolla %jin. wide, tubular, 

 2-lipped. India. Cult, in S. Fla. 



P. cunifldrus, Nees. Shrub, 3-6 ft. high: Ivs. large, 

 elliptic, acute at both ends, toothed, glabrous: fls. yel- 

 lowish, with an elongated corolla. Himalayas. B.M. 

 3783. H.U. 2, p. 259. JjEINRICH HASSELBRING. 



PHLOMIS (old Greek name 

 used by Dioscorides). Labiatx. 

 JERUSALEM SAGE. Stout mostly 

 tall plants sometimes grown hi the 

 open for the dense axillary whorls 

 of rather large yellow, purple or 

 white flowers. 



Plants more or less woolly, some 

 of the species conspicuously white- 

 woolly, shrubs or perennial herbs: 

 Ivs. all alike, or the uppermost 

 reduced to bracts: whorls many- 

 or few-fld.; fls. sessile; calyx usu- 

 ally plicate, truncate or with 5 

 equal teeth; upper lip of the corolla 

 (galea) broad and compressed or 

 strongly concave, rarely narrow 

 2908. Phleum and falcate; lower lip 3-cleft and 

 pratense. Timothy, spreading; tube usually bearing a 

 woolly ring inside; stamens 4, 

 didynamous, ascending under the 

 upper lip, one pair of filaments 

 often appendaged at base; style 2-lobed: nutlets 4, 

 obovoid or ovoid, triquetrous, glabrous or pubescent. 

 Medit. region and to China, perhaps 70 species. Per- 

 haps a dozen species have been cult., but they are 

 rather coarse plants except for wild gardening and 

 among shrubbery. They are of the easiest cult. Prop, 

 by seeds, cuttings, and the herbaceous species by 

 division. P. tuberosa, Linn., of Eu., has run wild spar- 

 ingly in the E. It is a vigorous and hardy species, 

 prop, by subterranean tubers. 



A. Fls. yellow. 



fruticdsa, Linn. JERUSALEM SAGE. Shrub, 2-4 ft. 

 high, divaricately much-branched, yellowish tomentose: 

 Ivs. ovate to oblong, rounded or wedge-shaped at the 

 base, rugose, green above and white-tomentose beneath: 

 whorls 20-30-fld., one or two at ends of branches; 

 bracts broadly ovate or ovate-lanceolate: fls. yellow, 

 showy. S. Eu. B.M. 1843. Gn. 79, p. 114. G. 7:177; 

 35:713. In the E. it blooms from June to July. In 

 S. Calif., it blooms in winter, and has the merit of with- 

 standing drought and heavy sea winds. In New Eng- 

 land it needs protection hi winter. 



lunarifolia, Sibth. & Smith. Undershrub, erect and 

 branching, green but oppressed-tomentose, 6 ft.: Ivs. 



