RHAMNUS 



RHAPHITHAMNUS 



2025 



14. crenata, Sieb. & Zucc. Shrub, to 10 ft.: young 

 branchlets and young Ivs. rusty pubescent : Ivs. oblong- 

 ovate to oblong-lanceolate or obovate-oblong, acumi- 

 nate or long-acuminate, finely crenate-serrulate, pubes- 

 cent beneath, at least on the veins, with 7-12 pairs of 

 veins, 2-4 in. long: peduncles usually shorter than 

 petioles: fr. subglobose, H m - across, changing from red 

 to purplish black. Japan to Cent. China. S.I.F. 2:47. 



15. Frangula, Linn. (Frangula Alnus, Mill.). Shrub 

 or small tree, attaining 12 ft.: Ivs. broadly obovate to 

 obovate-oblong, acute, entire, dark green above, gla- 

 brous, 1-2 Yi in. long: fr. red, changing to black, with 2 

 nutlets. Eu., N. Afr., \\. Asia and Siberia, escaped from 

 cult . in some localities in the eastern states. Gng. 8 : 3. 

 B.B. (ed. 2) 2:504. H.W. 3:48. Var. asplenifdlia, 

 Dipp. (R. asplenifdlia, Simpnkai, not Carr.). Lvs. 

 Unear, undulate; an interesting form of very distinct 

 appearance with its feathery foliage. Var. latifdlia, 

 Dipp. (R. latifdlia, Kirchn., not L'Her.). Lvs. to 5 in. 

 long and to 2*^ in. broad: fr. larger. Var. heterophylla, 

 Mouillef. (var. angustifdlia, Bean). Lvs. oblong to 

 lanceolate, uneven, erose or irregularly lobed at the 

 margin. R. Frangula is a handsome shrub with shining 

 foliage and attractive berries. 



R. alpina. Linn. Closely allied to R. fallax. Young branchlets 

 dull brownish gray, often pubescent: Ivs. elliptic or oval, with 10-12 



rirs of veins, 1 )i-3, rarely to 4 in. long: fr. smaller. Mountains of 

 Eu. L.B.C. 11: 1077. R. arguta, Maxim. Unarmed glabrous 

 shrub, allied to R. cathartica: Ivs. opposite, orbicular-ovate, acumi- 

 nate, sharply serrate, with bristly pointed teeth. Amurland. Proba- 

 bly hardy./?. Bilidrdii, Hort.=R. hybrida var. R. chlorophora, 

 Koehne (R. chinensis, Hort.). Shrub: branchlets glabrous or nearly 

 so; Ivs. obovate, abruptly acuminate, pubescent on the veins 

 beneath, with 4-6 pairs of veins, 1 H~3 in. long. China. Doubtful 

 species. R. chlwophora, Decne.=R. gJobosus. R. costdta, Maxim. 

 Allied to R. fallax. Shrub, to 15 ft.: branchlets glabrous: Ivs. 

 elliptic- or ovate-oblong, crenately sernilate, with about 20 pairs 

 of veins, pubescent beneath, 3-6 in. long; petiole very short: fr. 

 black, J^in. across. Japan. S.I.F. 2:48. R. crenulata. Ait. 

 Evergreen shrub: Ivs. oblong, obtusish, narrowly cuneate at the 

 base, crenulate, glabrous, %-lJi in. long: fls. in dense clusters in 

 the axils of last year's Ivs. Canary Isls. Tender. R. dumetbrum, 

 Schneid. Spiny shrub, to 6 ft.: Ivs. usually opposite, rhombic- 

 lanceolate, acute at the ends, or elliptic, crenate-denticulate, pubes- 

 cent at least on the veins beneath, }$-l )^ in. long: fr. J^in. thick. W. 



3371. Rhamnus dahurica. (X%) 



, Rehd. & Wilson. Lvs. 1 V-2 H in. 1 



more coarsely crenate-serrate. W. China. R. Erythrdxylon, Pall. 

 Unarmed shrub, allied to R. cathartica: Ivs. alternate, oblong- 

 lanceolate to linear. Caucasus to Mongolia and Siberia. Hardy. 

 R. globdsa, Bunge (R chlorophora, Decne. R. dahurica var. 

 aprica, Maxim.). Low rigid shrub: branchlets pubescent: Ivs. 

 opposite, obovate or broadly obovate, cuneate, pubescent, Ji~2 in. 

 long: fr. J^in. thick. N. and E. China. R. heterophyUa, Oliver. 

 Shrub, to 5 ft. with often decumbent branches: branchlets pubes- 

 cent; stipules persistent: Ivs. alternate, ovate-lanceolate, J^-IH in. 

 long or broadly ovate, J^-J^in. long, puberulous oh the veins 

 beneath: fls. 5-merous. Cent. China. H.I. 18:1759. R. hybrida, 

 L'Her. (R. Alaternus X R. alpinus). Half-evergreen shrub, with 

 alternate, oval-oblong, glossy Ivs. Var. Bilidrdii, Lav. Lvs. nar- 

 rower, more remotely serrate. Half-hardy shrub, with handsome 

 glossy foliage. R. infectoria, Linn. Spiny spreading shrub, to 6 

 ft.: Ivs. subopposite, oval or ovate to obovate, finely toothed, gla- 

 brous or pubescent on the veins beneath, Ji-1 J^ in. long: fr. 

 black. S.W. Eu. R. latifdlia, L'Her. Allied to R. Frangula: Ivs. 

 larger, elliptic-oblong, with 12-15 pairs of veins, 4-7 in. long: fr. 

 }^-J^in. thick, changing from red to black. Azores. B.M. 2663. 

 I.T. 3:106. G.W. 12, p. 312. Not hardy. R. leptophylla, Schneid. 

 Shrub, to 6 ft.: branchlets glabrous: Ivs. opposite, obovate, short- 

 acuminate, remotely denticulate, light green, glabrous beneath, 

 1 }^-3 in. long: fr. Kin. thick. Cent, and W. China. R. libanotica, 

 Boiss. Allied to R. imeretina; more spreading: Ivs. qblong-obovate, 

 crenate-dentate, pubescent beneath, with 10-15 pairs of veins: fr. 

 Kin. across. Asia Minor. R. pumila. Linn. Low, sometimes pro- 

 cumbent shrub, allied to R. alpinus, with smaller and shorter Ivs., 

 usually narrowed at the base. Eu., Alps. Hardy. R. Rosthornii, 

 Pritz. Shrub, to 5 ft.: branchlets glabrous: Ivs. opposite, oblong- 

 lanceolate, cuneate, crenate, pubescent beneath, }-! in. long: fr. 

 Kin- across, with usually 2 seeds. W. China. R. rupestris, Scop. 

 Low, often procumbent shrub, about 3 ft. high, allied to R. caro- 

 liniana: Ivs. ovate to oblong-obovate, thin, 1-3 in. long: umbels 

 1-3-fld. Alps of E. Eu. R. SargentiAna, Schneid. Shrub, to 15 ft. : 

 branchlets glabrous: Ivs. alternate, oblong-elliptic, cuneate, acute 

 or short-acuminate, crenate-serrate, sparingly hairy beneath, with 

 12-18 pairs of veins, 1 Ji-5 in. long: fr. purplish black, Kin. across. 

 W. China. R. saxdtilis, Linn. Low and dense, very spiny shrub, 

 about 3 ft. high, allied to R. cathartica: Ivs. opposite or alternate, 

 oval or obovate, glabrous, about 1 in. long. Mountains of Cent, and 

 S. Eu., W. Asia. Hardy. H. W. 3, p. 57. R. spathul&fdlia, Fisch. 

 Spiny shrub, to 6 ft.: Ivs. alternate, elliptic-oblong to lanceolate, 

 narrowed at both ends, finely toothed, glabrous or finely pubes- 

 cent, J^-2 in. long: fr. black, slender-stalked. S. E. Eu., W. Asia. 

 R. tinctdria, Waldst. & Kit. Closely allied to the preceding, but 

 Ivs. pubescent. Mountains of Cent, and S. Eu., W. Asia. R. utilis, 

 Decne. Shrub to 10 ft.: branchlets glabrous: Ivs. opposite, elliptic- 

 pblong, serrulate, light green, glabrous, with 5-8 pairs of veins, 2-5 

 in. long. Cent, and E. China. ALFRED REHDER. 



RHAPHIDOPHORA (Greek for needle-bearing; 

 alluding to needle-like hairs) . Aracese. Climbing aroids, 

 to be treated like Philodendron and Pothos. Species 

 60 in Engler, Pflanzenreich, hft. 37 (IV. 23B. 1908), of 

 the East Indies, allied to Pothos, but distinguished by 

 the presence of odd hairs in the intercellular spaces 

 and by the two-loculed rather than three-loculed ovary. 

 The garden plant Pothos aureus, sometimes provision- 

 ally referred here, is to be sought in Scindapsus. The 

 generic name is sometimes spelled Raphidophora. 



It is not known that any species of Rhaphidophora 

 are in the American trade. R. pertusa, Schott (Pothos 

 pertusus, Roxbg. Scindapsus pertusus, Schott), has large 

 monstera-Uke Ivs., with long and narrow side lobes and 

 numerous holes in the blade. R.H. 1883, p. 561. R. de- 

 curslva, Schott, is a gigantic climber, with large pinnate 

 Ivs., the segms. or fits, oblong-lanceolate-acuminate 

 and strongly nerved: spathe yellowish. B.M. 7282. 

 R. Peepla, Schott, has entire oblong or elliptic-oblong 

 Ivs., with roundish or subcordate base: spathe yel- 

 lowish. 



RHAPHITHAMNUS (Greek, rhaphis, needle, and 

 thamnos, shrub; referring to the needle-like spines). 

 VerbencLcese. Two evergreen small trees from Chile, 

 with slender axillary spines, opposite, rather small, entire 

 short-petioled Ivs. and tubular lilac fls. axillary, soli- 

 tary or in pairs on the spines, followed by bright blue 

 globose berries : calyx tubular-campanulate, 5-toothed, 

 persistent, becoming fleshy and inclosing the frs.; 

 corolla tubular-funnelform, with short spreading un- 

 equally 5-lobed limb; stamens 4, didynamous, inclosed; 

 ovary superior, 4-celled; style slender with 2-lobed 

 stigma : fr. a fleshy drupe with two 2-celled and 2-seeded 

 stones. The following species has recently been recom- 

 mended as a hedge-plant for the warmer parts of the 

 United States. 



