332 



THE DICTIONARY OF GARDENING, 



Rubus continued. 



incised, serrated, the lateral ones distant fr"*?'*"^? 1 

 one, often deeply two-lobed. Stem erect, 6ft. to IWfc high, 

 unarmed or with deciduous prickles. North America, 1827. 

 (B. R. 1424 ;L.B.C. 1602.) 



, 



the grde or European Raspberry " (Asa ray , eaes re 

 to five oblong ovate, acute, cut-serrated, whitish-downy beneath, 

 the lateral ones sessile. Stems biennial and woody, prickly, up- 

 right, h. 3ft. North America. 



R triflorus (three-flowered). Dwarf Raspberry, fl. white, small ; 

 sepals and petals often six or seven, the latter erect; peduncle one 

 to three-flowered. June. fr. of few separate grains. I. three (or 

 pedately five) foliolate ; leaflets rhombic-ovate or ovate-lanceolate, 

 acute at both ends, coarsely and doubly serrated, thin, smooth. 

 Stems ascending, 6ft. to 12ft. high, or trailing, not prickly. North 

 America. (H. F. B. A. i. 62.) 



R. villosus (hairy). American High Blackberry, /.white, 

 racemose numerous sepals much shorter than the obovate- 

 oWong petals May and P June. fr. blackish, large, ripening in 

 Auguft and September. I. , leaflets three (or pedately five), ovate, 

 acute, unequally serrated, the terminal ones somewhat cordate, 

 conspicuously stalked. Stems upright or reclining, armed with 

 stout, curved prickles, h. 1ft. to 6ft. North America, 1777. 

 RUCKIA (of Regel). A synonym of Rhodostachys 

 (which see). 



RUDBECKIA (named in honour of Olaf Eudbec, 

 Professor of Botany at Upsal). Cone Flower. Including 

 Centrocarpha, Dracopis, Helichroa, Lepachys, Obeliscaria 

 and Ratibida. OBD. Composites. A genus comprising 

 about twenty-five species of greenhouse or hardy, slightly 

 branched, perennial herbs, natives of North America. 

 Flower-heads purplish, violet, or pale (sometimes with 



FIG. 397. UPPER PORTION OF STEM OF RUDBECKIA PINNATA. 



the ray, and rarely the disk, yellow), large or mediocre, 

 solitary or few, on long peduncles ; involucre hemi- 

 spherical, the bracts in two, three, or four series ; re- 

 ceptacle much elevated, conical or columnar; ray florets 

 ligulate, spreading, often elongated, entire or with two 

 or three short teeth at the apex; achenes glabrous. 

 Leaves alternate or rarely opposite, entire, toothed, in- 

 cised, or pinnatisect. The under-mentioned species are 



Rudbeckia continued. 



all hardy, and will thrive in any ordinary garden soil 

 Increased by divisions, or by seeds. R. maxima and 

 R. speciosa are two of the most attractive of hardy 

 perennials for mixed borders and massiner. 



FIG. 398. UPPER PORTION OF STEM OF RUDBECKIA PURPUREA. 



R. columnaris (columnar), fl. -heads, ray florets yellow, or some- 

 times yellowish-red, elongated, dependent, bidentate at apex. 

 September. I. pinnatisect; segments linear-lanceolate, acute, 

 .entire, the terminal one almost equalling the rest. h. 3ft. 1811. 

 (B. M. 1601.) 



R. fulgida (brilliant). fl.-Jifads, ray florets orange-yellow, about 

 twelve, equalling or exceeding the involucre ; disk dark purple, 

 the chaff nearly smooth. July. I. spathulate-oblong or lanceo- 

 late, partly stem-clasping, triple-nerved, the upper ones entire, 

 mostly obtuse, h. 1ft. to 3ft. 1760. Plant hairy. (B. M. 1996.) 



R. grandiflora (large-flowered).* fl.-heads, ray florets yellow 

 2in. long, dependent ; disk dark purple, convex. September. 

 I. petiolate, acute, attenuated at base, reticulate-veined ; lower 

 ones ovate, crenate-toothed ; upper ones lanceolate, very scabrous, 

 obsoletely crenate. Stem angular, branched, h. 3jft. 1830. 

 (S. B. F. G. ser. ii. 87, under name of Centrocarpha grandiflora.) 



R. hirta (hairy), fl.-heads large, solitary ; ray florets yellow, about 

 fourteen, more or less exceeding the involucre ; disk dull brown, 

 the chaff hairy at the tip. June to August. I. nearly entire ; 

 upper ones oblong or lanceolate, sessile ; lower ones spathulate, 

 triple-nerved, sessile. Stems simple or branched near the base, 

 1ft. to 2ft. high. 1714. Plant very rough and bristly-hairy. 

 (S. B. F. G. 82.) 



R. maxima (greatest).* fl.-heads solitary, on long peduncles ; ray 

 florets pure yellow, 2in. long, drooping ; disk columnar, elongated. 

 August. I. large, membranous, oval or oblong, slightly toothed or 

 entire, feather-veined, the lower ones petiolate, the upper ones 

 clasping ; lowest ones 8in. to 12in. long. Stem 4ft. to 9ft. high. 

 A handsome plant. 



R. Newmanii (Newman's). A synonym of R. speciosa. 



R. pallida (pale). This is the correct name of the plant described 

 in this work as Kchinacea angustifolia. 



R. pinnata (pinnate-leaved).* fl.-heads, ray florets light yellow, 

 large and drooping, much longer than the oblong disk ; receptacle 

 exhaling a pleasant, anisate odour when bruised. July. I. alter- 

 nate, pinnate ; leaflets three to seven, lanceolate, acute, h. 3ft. 



