1590 



RUELLIA 



RUMEX 



shrub, 1-G ft. high, with ovate-lanceolate Ivs. 4-6 in. 

 long: fls. large, bell-shaped, with tubular base, purplish 

 rose with purple veins, solitary in leaf -axils. Brazil. 



2218. Rudbeckia laciniata, var. Golden Glow (X %). 



See p. 1589. 



G.C. III. 17:45. R.H. 1881:410.-G. W. Oliver says in 

 his "Plant Culture "that If. macrantha is of easy cul- 

 tivation and is one of the best greenhouse flowering 

 plants for amateurs. Cuttings rooted in September 

 furnish fair-sized flowering plants in January. These, 

 if desired, may be planted out in late spring, when they 

 will have formed large specimens, which may be lifted 

 and potted. 



BB. IjVS. marked with tchite. 

 0. Fls. tvhite, often veined tvith lilac. 



Devosii,na, Hort. A low-growing tender Brazilian 

 species, with lanceolate Ivs. marked on the upper sur- 

 face with white along the nerves and having the lower 

 surface entirely purple: fls. rather small, usually white, 

 with blue stripe, axillary; corolla-tube suddenly dilated 

 and bent at the middle. 



cc. Fls. carmine or rose. 



Makoyina, Hort. A compact, bushy plant resembling 

 i?. Devosiana, Hort., in foliage, but differing in the 

 color of the fls. (bright carmine) and by their somewhat 

 larger size. Brazil. R.B. 21:109. R.H. 1896: 576. -Pre- 

 fers shade. It is said that the color of the foliage is 

 better when soot is mixed with the soil. 



AA. Blossoms on long peduncles. 



B. Fls. hliie or purple. 



tuberdsa, Linn. A perennial herb, 2-3 ft. high, with 



oval or ovate Ivs. 2-3 in. long and blue fls. lK-2 in. 



long, in terminal, nearly naked panicles; stigma single: 



capsule 12-lG-seeded. Southwestern U. S.; cult, in Fla. 



BE. Fls. red. 

 G. Peduncles much branched, 

 amcena, Nees (Stephanoph^sum longifblium, Pohl). 

 A half-hardy perennial, about IK ft. high: Ivs. oblong- 

 lanceolate or oblong, narrowed at both ends; margins 

 repand-denticulate or simply repand: fls. bright red, in 

 axillary sprays in summer. Brazil. F.M. 1880:419. 



ro. Peduncles hut little bratiched. 

 formdsa, Andr. Fig. 2219. A low-growing, tender, 

 herbaceous perennial: Ivs. ovate, rounded at the base, 



hairy on both sides: fls. on straight, axillary peduncles ; 

 corolla scarlet, showy, l^i in. long, the upper 2 lobes 

 joined for half their length. Summer. Brazil. B.M. 

 1400. — Cult, in California. 



R. vdrians, Vent. See DasdalacaBthus nervosus. 



F. W. Barclay. 



RXJLlNGIA (after J. Ph. Ruling, a botanist of Gottin- 

 gen). Sterculiiicew. This includes two plants cult, in 

 S. Calif. R. parviflora is highly recommended as a 

 rock plant by Ernest Braunton, of Los Angeles, who 

 grows it in quantity for its trailing habit and myriads 

 of small pink fls. borne in spring. Franceschi says that 

 H. pannosa is odd and pretty by reason of the fleecy 

 coating of tlie leaves. A genus of about 15 species of 

 shrubs or undershrubs from Australia, except one a 

 native of Madagascar. Lvs. various in size, entire, 

 toothed or lobed: fls. mostly white, small, in cymes; 

 calyx 5-lobed; petals 5, broad and concave or convo- 

 lute at the base, with a small, broad or linear ligula at 

 the top; stamens shortly or scarcely joined at the base, 

 5 without anthers, petal-like, 5 perfect, short: ovary 

 sessile, 5-celled; ovules 1-3 in each cell. Flora Austra- 

 liensis 1:237. 



A. I/vs. 1-3 in. long. 



panndsa, R. Br. Eventually a shrub, several ft. high, 

 but flowering freely at a young age: lvs. scabrous-pu- 

 bescent above, densely velvety hirsute below, on older 

 plants ovate-lanceolate to lanceolate, on young plants 

 broader and often .3-4-lobed: cymes shortly peduncu- 

 late: fls. white. B.M. 2191. -The plant offered in Calif, 

 as Pomaderris apetala is said to belong here. 

 AA. Z/VS. usually less than 1 in. long. 



parvifldra, Endl. A low shrub, with branches Yi-VA 

 ft. long, ascending or prostrate: lvs. ovate or ovate-lan- 

 ceolate, obtuse, deeply crenate, mostly lobed: fls. pink- 

 ish, in shortly pedunculate cymes. -p. W. Barclay. 



EtJMEX (the Latin name). Polygoncicece. Dock. 

 Sorrel. Herbs, mostly perennial, with strong roots, of 

 more than 100 species in many parts of the world. Most 



2219. Ruellia formosa (X V^) . 



of the species are weedy plants, but some of them afford 

 leaves for " greens " and others are useful for ornament. 

 All are of the easiest culture. Prop, mostlj' by seeds. 



