PHILESIA 



PHILODENDRON 



2583 



sparingly in the latter part of the summer. The flowers 

 were borne only singly in the axils of the leaves. Cut- 

 tings may be rooted when taken from ripened growth, 

 but require careful management in a cool temperature, 

 and are usually several months in rooting. If one tries 

 to grow philesia in a too high temperature, the general 

 result is a good crop of thrips and a case of general 

 debilitv, much as with Pernettya mucronata under simi- 

 lar conditions. Philesia is probably not extraordinarily 

 hard to manage, provided it is kept cool and in a 

 dewy atmosphere, but it will positively rebel against 

 forcing. (W. H. Taplin.) 



buxifolia, Lam. (P. mageUdnica, Gmel.). Much 

 branched, 3-4 ft. : Ivs. alternate, linear-oblong, 1-1 % in- 

 long, leathery, evergreen, feather-veined, glabrous, 

 glaucous beneath; margins reflexed; petiole jointed at 

 the junction of the blade: fls. solitary, bright rosy red; 

 petals wavy; filaments united into a tube below the 

 middle, then free; ovary 1-celled, with 3 short parietal 

 placentae which bear several ovules: fr. a berry. S. 

 Chile to Magellan. B.M. 4738. F. 1854:65. G.C. II. 

 18:105; III. 55, suppl. June 6. J.H. III. 42:299. 

 G. 36:329. H.F.4:72. WILHELM MILLER. 



PHILIBERTlLLA: Philibertia. 



PEOLIBERTIA (after G. C. Philibert). Incl. Sar- 

 costemma and PhUibertella. Asdepiaddceae. Climbing 

 shrubs or half-shrubs, white-pubescent or glabrous, 

 sometimes grown under glass or far S. for ornament: 

 Ivs. opposite: infl. umbelliform cymes, pedunculate in 

 one axil or rarely sessile; fls. variable in size, often 

 greenish white; calyx small, 5-parted, minutely 5- 

 glandulose within, lobes acute; corolla very broadly 

 campanulate or subrotate, divided slightly to the middle 

 or deeply 5-cleft, with the lobes twisted and narrowly 

 overlapping to the right; exterior crown membrana- 

 ceous, ring-like, adnate to the base of the corolla, free 

 from the stamen-tube or more or less connate with the 

 median wings of the opposite anther, interior 5 crown- 

 scales adnate with the base of staminal tube, with a 

 variable lamina; stamens affixed to the base of the 

 corolla, the filaments forming a short tube: fr. smooth, 

 acuminate, somewhat thickened follicles. About 30 

 species, Trop. and Subtrop. Amer. P. clausa, Schu- 

 mann (PhUibertella clausa, Vail). Sts. glabrous or 

 minutely pubescent at the nodes: Ivs. ovate-oblong or 

 lanceolate-oblong, apex acute or acuminate, base 

 rounded or subcordate, peduncles twice as long as the 

 Ivs., or more: fls. many; calyx-lobes oblong-lanceolate, 

 acute, pubescent ; corolla white, lobes oblong, fimbriate- 

 eiliate. Fla. A twining perennial with glossy ever- 

 green Ivs. and very sweet-scented fls., which has been 

 offered in the trade-lists. P. gracilis, D. Don (P. 

 grandiflbra, Hook.). Twining shrub: Ivs. opposite, 

 cordate at base: the umbels borne between the petioles; 

 calyx 5 deep acuminate segms.; corolla rotate-cam- 

 panulate, more than 1 in. diam., with 5 triangular 

 segms. and a small tooth between them, cream-colored 

 dotted and streaked with purple inside. S. Amer. 

 B.M. 3618. H.U. 2, p. 261. Cult, to some extent in 

 Eu - F. TRACY HUBBARD. 



PHTLLYREA (its ancient Greek name). Oledcese. 

 Ornamental woody plants, grown for their handsome 

 evergreen foliage. 



Evergreen shrubs or small trees: Ivs. opposite, short- 

 petioled, entire or serrate, quite glabrous: fls. small, in 

 axillary short racemes, dioecious; calyx 4-toothed; 

 corolla 4-lobed, with short tube; stamens 2, with very 

 short filaments; style shorter than tube; ovary 2- 

 celled: fr. a 1 -seeded black drupe. Five species in 

 the Medit. region. The name is sometimes misspelled 

 Filaria. 



The phillyreas have small, or in one species rather 

 large leaves, and small white flowers, followed by small 



164 



berry-like purplish black fruits. The species are hardy 

 only South, but P. decora, the handsomest of all the 

 species, is probably hardy in sheltered positions as far 

 north as Massachusetts. They may be used in the south- 

 ern states and California for evergreen shrubberies in 

 drier and more exposed localities. They grow in almost 

 any soil and prefer sunny positions; but P. decora seems 

 to grow better if partly shaded. Propagation is by 

 seeds sown after maturity and by cuttings of half- 

 ripened wood under glass in summer or by layers; they 

 are also sometimes grafted on Ligustrum ovalifolium. 



A. Los. %-2 in. long: fr. small. 



B. Shape of Ivs. roundish oval to oblong-lanceolate, usually 

 serrate. 



latifolia, Linn. Shrub or small tree, to 30 ft., with 

 spreading, somewhat rigid branches: Ivs. ovate or oval 

 to ovate-oblong, rounded or slightly cordate at the base, 

 usually serrate, dark green and shining above, pale 

 beneath, %-lM in. long: fr. globose, concave at the 

 apex. May, June. S. Eu., N. Afr. H.W. 3, p. 123. 

 R.F.G. 17:1075. There are several varieties. Var. 

 laevis, Ait. Lvs. ovate, almost entire or slightly ser- 

 rulate. Var. rotundifolia, Arb. Kew. Lvs. broadly 

 ovate or roundish ovate. Var. spinosa, Ait. (P. Uici- 

 fdlia, Willd.). Lvs. ovate or ovate-oblong, sharply 

 serrate. 



media, Linn. (P. latifolia var. media, Schneid.). 

 Spreading shrub, to 20 ft.: young branchlets puberu- 

 lous: Ivs. oblong-ovate to ovate-lanceolate, entire or 

 serrate, dark green and shining above, %-2 in. long: 

 fr. ovoid, pointed. May, June. Medit. region. N.D. 

 2:27. G.O.H. 116. R.F.G. 17:1075. This species 

 seems to be somewhat hardier than the preceding and 

 the following; the most important of the many varie- 

 ties are the following: Var. buxifolia, Ait., with oblong- 

 ovate, obtusish Ivs. Var. oleaefdlia, Ait. (P. oleaefolia, 

 Hort.). Lvs. oblong-lanceolate, almost entire: branches 

 erect. Var. pendula, Ait. Branches spreading and 

 somewhat pendulous: Ivs. lanceolate. 



BB. Shape of Ivs. lanceolate to linear-lanceolate. 



angustifolia, Linn. Spreading shrub, to 15 ft., with 

 glabrous branchlets: lys. oblong-lanceolate to linear- 

 lanceolate, usually entire, dull green above, 1-2 in. 

 long: fr. globose or ovoid-globose, pointed. May, June. 

 Medit. region. G.O.H. 115. R.F.G. 17:1076. Var. 

 lanceolata, Ait. Lvs. lanceolate, about 1 in. long. 

 Var. rosmarinifolia, Ait., has linear-lanceolate Ivs., 

 sometimes over 2 in. long, and erect branches. The 3 

 preceding species are very closely related to each other 

 and considered by some botanists to be varieties of 

 only 1 species and designated as P. varidbilis, Timbal & 

 Loret, or P. vuLgaris, Caruel. 



AA. Lvs. 3-5 in. long: fr. ]^in. long. 

 decdra, Boiss. & Bal. (P. VHmorinidna, Boiss. & Bal. 

 P. laurifolia, Hort. P. Medwediewi, Sred.). Shrub, to 

 10 ft., with spreading branches: lys. oblong to oblong- 

 lanceolate, acuminate, usually entire or remotely serru- 

 late, dark green and shining above, yellowish green 

 beneath: fr. oblong-ovoid, purplish black. June, July. 

 W.Asia. B.M. 6800. G.C. III. 4:673; 16:369. R.H. 

 1889, p. 199; 1895, pp. 204, 205. M.D.G. 1898:349. 

 S.H.2:523. Gn. 24, p. 490. G. 30:325; 36:657. G.W. 

 5:259. ALFRED REHDER. 



PHILODENDRON (Greek compound for tree-lov- 

 ing) . Aracex. Shrubby or tree-like ornamental plants, 

 usually climbing, rarely arboreous. 



Internodes more or less elongated: Ivs. from entire 

 to bipinnatifid: fls. monoecious, on spadices, with no 

 perianth, the sterile with 2-6 stamens united into a 

 sessile obpyramidal body, the pistillate fls. with a 2-10- 

 loculed ovary and some staminodia, the berries inclosed 

 in the involute spathe. The species are all Trop. 



