RUDBECKIA 



RUELLIA 



3035 



Hort . , is a dwarf compact-growing form . Var. variabilis, 

 Hort., is a form growing about 3 ft. high, with numer- 

 ous rigid sts.: fls.-heads with yellow and brown ray- 

 florets and dark purple disk-florets. 



EE. Lrs. irregularly serrate. 



7. specidsa, Wenderoth. Perennial, 1-3 ft. high: 

 rays 12-20, becoming l^ in. long. Moist soil, Pa. to 

 Mich., Ark., and Ala. G.C. II. 16:373 (heads 3-4 in. 

 across, rays more than 30, in 2 series). Gn.W. 24:207. 



3509. Rudbeckia laciniata, Golden Glow. ( 



G. 3:427 (as R. Kewmanii). R. Newmanii, Loud., is 

 generally considered a synonym of this species. 



BB. Color of disk greenish or yellowish. 



c. Lvs. entire or barely dentate. 

 D. Height 2-4 ft.: fc'S. bright green. 



8. nitida, Xutt. This and the next are southern per- 

 ennials. with Ivs. entire or barely dentate: rays droop- 

 ing, pure yellow, several or numerous; disk finally 

 columnar, 1-2 in. long. Wet ground, Ga. to Fla. and 

 Texas. Gn. 47:201. 



DD. Height 4~9 ft.: ks. glaucous. 



9. tnaTJma, Xutt. Closely allied to R. nitida and 

 differing as indicated in the key. Moist pine woods 

 and plains, Ark., La., Texas. Gn. 47:418. G. 30:281. 



cc. Lvs. (upper st.-U's.) S-deft. 



10. laciniata, T.inn. (R. dmpla, A. Nels.). Fig. 3508. 

 Perennial, 2-7 ft. high: lower st.-lvs. 3-5-parted, upper 

 ones 3-cleft : rays yellow, few or several, soon drooping; 

 disk cvlindric in fr. Moist ground, Canada to Fla., west 

 to Mont, and New Mex. G.F. 2:281 (adapted in 'Fig. 

 3508). Golden Glow is a full double form, 2^-3H in- 

 across. Fig. 3509. Gng. 5:5. 117; 6:370. A.F. 12:274, 

 275. Gn. 50, p. 411; 62, p. 305. G.C. III. 20:339. 



ccc. Lrs., especially the lower ones, sometimes 2-cleft, 

 very rarely entire. 



11. calif ornica, Gray. A pubescent, rather rough, 

 simple-stemmed perennial, with the dentate Ivs. usually 

 2-lobed at the base: heads solitary, long-peduncled, 

 composed of numerous rays which frequently exceed 2 

 in. diam., making a showy fl. nearly 5 in. wide. Pacific 

 coast. J.H. III. 42:281. One of the best moderate- 

 sized rudbeckias. 



R. anffustifolia, Linn., is Echinacea angustifolia. R. Dnim- 

 mondii, Pait. (Obeliscaria Drummondii, Maund.). Perennial, 

 herbaceous: sts. slender: Ivs. pinnate, the lobes linear -lanceolate, 

 slightly jagged, acute: rays large, oblong, obtuse, reflexed, bright 

 orange, deeply stained with dark brown at their base. N. Amer.(?). 

 Botanically unknown, probably some species of Lepachys. P.M. 

 6:51. B. 5:201. R. pinndta. Vent., is Lepachys pinnata. R. pur- 

 purea, Linn., is Echinacea purpurea. WlLHELM MlLLER. 



N. TAYLOR. 



RUDGEA (named in honor of Edward Rudge, an 

 English botanist). Rubiacex. Shrubs or small trees, 

 glabrous or pubescent, suitable for the wannhouse and 

 perhaps hardy in the extreme southern U. S.: Ivs. 

 opposite, subsessile or petioled, leathery: fls. medium 

 to rather large, paniculate, sessile or pedicelled, rarely 

 capitate; calyx-tube ovoid or obconical, limb short, 

 ^rarely 4-cleft or -parted, persistent ; corolla smooth or 

 villous, limb 5- rarely 4-lobed, erect or spreading; 

 stamens 5, rarely 4; disk various; ovary 2-celled: fr. 

 small, dry or succulent, with 2 nutlets which are dor- 

 sally plano-convex and smooth or sulcate and longi- 

 tudinally sulcate on then* ventral face. About 115 

 species, Trop. Amer. R. leucocephala, Schumann (R. 

 macrophylla, Benth. Psychotria leucocephala, Brongn.). 

 Lvs. large, subsessile, obovate-oblong: fls. cream-colored, 

 sessile, in fascicles densely clustered in globose heads; 

 corolla-segms. obtuse; peduncles short. Brazil. B.M. 

 5653. F.S. 17:1720, 1721. G.C. II. 12:81. H.U. 6, p. 

 257. J.F. 3:292, 293. p. TRACY HUBBARD. 



RUE: Rula graieolens. R, Anemone: Syndesmon. R., Goat's: 

 Galtga officinalis. 



RUELLIA (after Jean de la Ruelle, a French bota- 

 nist). Syn. Stephanophysum. Acanthacex. Villous, 

 pubescent or rarely glabrous herbs or shrubs, a few 

 species grown under glass and also outdoors mainly in 

 the South. 



Leaves opposite, entire or rarely dentate: fls. shades 

 of blue or purple to violet, white, rose to red and rarely 

 yellow to orange, sessile to long-peduncled, axillary, 

 solitary or fascicled or cymose paniculate; calyx deeply 

 5-cleft~or 5-parted, segms. linear or lanceolate; corolla- 

 tube straight incurved or abruptly inflexed, the limb 

 spreading, the lobes ovate or rounded; stamens 4, 

 didynamous: caps, oblong-linear or clavate. About 

 200 species, chiefly Trop. S. Amer., a few in N. Amer. 

 and extra-Trap. S. Amer., some in Trop. and S. Afr., 

 Temp. Asia and in Austral. 



A. Blossoms sessile or nearly so. 



B. Lvs. green. 

 c. Fls. blue, 1 Yz-2 in. long. 



cilidsa, Pursh. A hardy perennial herb, about 1H 

 ft. high, erect or prostrate, hirsute or pubescent: Ivs. 

 hairy, ciliate, usually oblong, sessile or short-petioled, 

 1H-3 in. long: fls. solitary or clustered, axillary, blue, 

 lJ^-2 in. long. Aug., Sept. In dry, light soil, N. J., 

 south and west. B.B. 3:203. Prop, by seeds or divi- 

 sion. 



Harveyana, Stapf. Perennial: sts. rather slender, 

 trailing or ascending, 4-angled above: Ivs. petioled, 

 green, oblong or elliptic-oblong: fls. produced one at a 

 time in the upper axils, sessile, pale lilac with a white 

 throat and tube; sepals very unequal, 4 linear-subulate, 

 the fifth wide-lanceolate; corolla-lobes elliptic-rounded; 

 ovary glabrous: caps, oblong-lanceolate, not stipitate. 

 Mex. B.M. 8485. 



