PARTHENOCISSUS 



PASPALUM 



2479 



shining and glabrous on both sides or puberulous on 

 the veins beneath: cymes mostly on short branchlets, 

 axillary or terminal, narrow and somewhat elongated: 

 fr. bluish black, bloomy. June, July; fr. in Sept., Oct. 

 Japan, Cent. China. B.M. 8287. G.C. II. 14:664. 

 A.G. 15:94. B.H. 27:244. R.H. 1877, p. 176. Gng. 

 1:373; 4:353. R.B. 1877:11. Var. Veitchii, Rehd. (P. 

 Veitchii, Graebn. Vitis Veitchii, Hort. Ampeldpsis 

 Veitchii. Hort.). Lvs. smaller, crenately serrate, pur- 

 ple while young; Ifts. with only 1-3 coarse teeth on each 

 side, the lateral ones inside without teeth. Apparently 

 only a juvenile form which may pass later into the type. 

 Var. purpurea, Hort. (Ampeldpsis Veitchii var. pur- 

 piirea or atropurpurea, Hort.). Lvs. dark purple, not 

 changing to green. Var. Ldwii, Rehd. (Ampeldpsis 

 Lou-ii, Hort. Vitis inconstans var. Lbwii, Hort.). Lvs. 

 small, %r\yi in. long, mostly entire or 3-foliolate, often 

 broader than long, ineisely dentate or almost palmately 

 lobed with very unequal teeth, apple-green, purplish 

 when young, changing to deep red in autumn. Gn. 71, 

 p. 516. J.H. III. 56:335. R.H.B. 33:388. A.F. 30: 

 1238. M.D.G. 1908:261. Var. aurata, Hort. Lys. 

 marbled with golden yellow and green. This species 

 is a hardy and very useful climber, clinging firmly and 

 covering walls densely; the glossy foliage stands dust 

 and smoke well, and turns to a brilliant orange and 

 scarlet in fall. Probably the favorite of all hardy vines 

 in cities. The varieties Veitchii and Lowii are much 

 slenderer and smaller and are very effective as basket 

 plants (M.D.G. 1892:8). 



P. heptaphyUa, Small (P. texana, Rehd. A. quinquefolia var. hepta- 

 phylla. Bailey. A. heptaphylla, Buckl.). High-climbing: tendrils with 

 2-4 branches without disks: Ifts. usually 7, oblong-obovate, cuneate 

 at the base, coarsely serrate, 1 }^-2 }^ in. long: cymes dichotomous, 

 opposite the Ivs. Texas. S.T.S. 1:90. P. himalayana, Planch. (Ampe- 

 lopsis himalayana. Royle). Allied to P. tricuspidata: Ifts. 3, ovate to 

 oblong-ovate, the lateral ones rounded or subcordate at the base, 

 coarsely serrate, 2-5 in. long: cymes about as long as the Ivs. 

 Himalayas. Var. rubrifilia, Gagnep. (Vitis mbrifolia, LeVeill6 & 

 Vaniot !. Lfts. smaller and broader, purplish while young: cymes 

 smaller. W. China. P. keierirens, Rehd. Allied to P. quinquefolia. 

 Tendrils with 5-8 slender branches: Ivs. obovate or elliptic, coarsely 

 serrate, bright yellowish green on both sides, 2^4 in. long, glabrous 

 or hairy on the veins below: fls. in large terminal panicles. Cent. 

 China. P. Thomsonii, Planch. (Vitis rubrifolia. Laws. P. Henryana 

 var. glaucescens, Diels & Gilg. Ampelopsis Thomsonii, Hort.). Ten- 

 drils with 3^5 disk-bearing branches: Ifts. 5, slender-stalked, elliptic- 

 ovate to elliptic-oblong, cuneate, serrate, glabrous or slightly pubes- 

 cent on the veins beneath, bluish green, 1 J-3 in. long: fls. in dichot- 

 omous cvmes 1 1 2-3 in. broad, opposite the Ivs.: fr. black. Hima- 

 layas, Cent. China. Gn. 63, p. 203. J.H.S. 28, p. 216, fig. 184. A 

 very handsome slender vine; foliage purplish while young, and pur- 

 plish red in fall. Tender. ALFRED REHDER. 



PARTRIDGE-BERRY: MitcheOa repent. Sometimes applied 

 to Gaultheria procumbent. 



PASANIA (the vernacular name of one of the species 

 in Java). Fagacex. Ornamental trees grown for their 

 handsome foliage. 



Evergreen: winter-buds with few foliaceous scales: 

 Ivs. short-petiqled, entire or dentate: staminate fls. 

 in upright catkins, with a rudimentary ovary; stamens 

 usually 12, much longer than the 4-6-lobed calyx; 

 pistillate fls. solitary or 3-5, on separate catkins or at 

 the base of the staminate catkins; ovary 3-celled, with 

 3 cylindric styles stigmatic only at the apex: fr. a 1- 

 seeded nut, surrounded at the base or wholly inclosed 

 by the cup, its scales distinct and imbricate or connate 

 into concentric rings. About 100 species in S. E. Asia, 

 one in Calif. Closely related to Quercus, from which it 

 is easily distinguished by the upright staminate catkins 

 and the cylindric styles stigmatic only at the apex. 

 The pasanias can be grown in wanner temperate 

 regions only and are little known in cult. Their treat- 

 ment and propagation is the same as that of the ever- 

 green species of oak. 



densifldra, Oerst. (Quercus densiflora, Hook. & Am.). 

 TAXBARK OAK. Evergreen tree, to 70, occasionally to 

 100 ft., with spreading branches forming a dense, broad, 

 round-topped head: Ivs. oblong-obovate or oblong, 

 acute, remotely dentate, with short acute callous teeth, 



fulvous-tomentose when young, at maturity glabrous 

 and pale green above, rusty tomentose beneath and 

 finally glabrous and bluish white: fr. peduncled; acorn 

 ovoid or ovate, %-l^ in. long, embraced only at the 

 base by the shallow cup coated with 

 linear spreading scales. S. Ore. to Calif . 

 S.S. 8:438. G.F. 5:523. One of the 

 most beautiful oaks of the Pacific 

 states. The bark is exceedingly rich in 

 tannin and is used for tanning leather. 

 The only representative of the genus 

 in Amer. 



2767. Parthenocissus tricuspidata. ( X M) 



P. cornea, Oerst. (Quercus cornea. Lour.). Evergreen tree: Ivs. 

 oblong, acuminate, glabrous and green beneath, 21 in. long: frs. 

 in short spikes; cup broadly turbinate with small prominent scales 

 embracing the hemispherical flat-topped nut. S. China. H.I. 

 27:2665. The nut is edible. Young plants have proved hardy at 

 Washington, D. C. P. cuspidata, Oerst. (Quercus cuspidata, 

 Thunb. Castanopsis cuspidata, Schottky). Evergreen tree, to 40 

 ft., with slender branches: Ivs. ovate to oblong, acuminate, cre- 

 nately serrate toward the apex or entire, glabrous at length, 1 J4~3 J4 

 in. long: fr. in short spikes; cup ovate, inclosing the acorn. S. 

 Z. 1:2. G.C. III. 12:233. S.I.F. 1:34. Very desirable ever- 

 green tree of vigorous growth- Var. varitgata, Hort. Lvs. smaller, 

 with a broad, irregular, creamy white margin. G.C. II. 12:233. 

 P. glabra, Oerst. (Quercus glabra, Thunb.). Evergreen tree: Ivs. 

 oblong, obtusely acuminate, entire, glabrous, light green beneath, 

 3-^6 in. long: fr. in spikes, ripening the second year: the oblong nut 

 embraced about one-third by the cup. Japan. G.C. II. 14:785; 

 in. 16:377. R.H. 1858, p. 351. S.Z. 1:89. S.I.F. 1:32. P. 

 thaldssica, Oerst. (Quercus thalassica, Hance). Evergreen tree: 

 Ivs. elliptic to obovate-oblong, acuminate, serrate toward the apex 

 or entire, glaucous-tomentulose beneath, 3-;5 in. long: fr. in short 

 spikes; cup with appressed scales, embracing one-fourth to one- 

 tird of the nut. Cnma. S.I.F. 1:33. J^^j, REHDER. 



PASCALIA: Wedelia. 



PASPALUM (Greek, paspalos, an ancient name for 

 millet). GranAnex. Spikelets 1-fld., plano-convex, 

 mostly rounded, subsessile and overlapping in 2 rows 

 on one side of a narrow or winged axis forming slen- 

 der racemes. About 150 species in the warmer parts of 

 both hemispheres, but more abundant in Amer., form- 

 ing an important part of the pampas and campos of 

 S. Amer. P. dilatatum, Poir., of Argentina, a coarse 

 species 3-5 ft. high, is sparingly cult, as a forage grass 

 in the Gulf states and has become naturalized through- 

 out the S. P. compressum, Nees, CARPET-GRASS, a 

 native, 6 in. to 2 ft. high, with creeping sts. and rather 

 broad Ivs. makes a good lawn grass in the Gulf region; 

 it is less difficult to eradicate than Bennudargrass. P. 

 distichum, Linn. Extensively creeping rather wiry 

 perennial, the erect fl.-culms 6-12 in., bearing a pair of 

 divergent spikes. Occasionally used for lawns in the 

 South. S. U. S. to S. Amer. P. membranaceum, Lam. 

 Slender perennial with few to several spikes, the silvery 

 spikelets arranged on a broad ribbon-like axis, banded 

 with drab and orange. S. Amer. Cult, in Eu. under the 

 name P. elegans; worthy of intro. A. S. HITCHCOCK. 



