192 ROSACEAE 



ROSA — continued 



Lflts. ov., 2, glossy, hairless. Fls. 2, pink, solitary or in small clusters; 

 sepals I, long-pointed. Fruit \, red, orange-shaped. East United States. 

 {R. Carolina is very similar, but in flower up to September, and Is. 

 usually 5-fol.) 



Variety alba. Fls. white. 



(ii) FRUIT PERFECTLY SMOOTH 



R. canina. Dog Rose. June-July. Prickles of about equal size. Lflts. ov., 

 i^, evenly toothed, hairless. Fls. i|, white or pinkish, in clusters, 

 fragrant, sepals pinnately lobed. Fruit f , red, egg-shaped or roundish. 

 Europe (including Britain) and West Asia. (Fig. 15 b.) 



R. foetida {R. luted). Austrian Briar. June. Stems slender, with straight 

 prickles. Lflts, ov., obov., i|-, coarsely and unevenly toothed, dark green 

 above, downy below. Fls. 2|, orange or orange-red, solitary or in small 

 clusters, unpleasantly scented. Fruit round, red. West Asia. (Fig. 16 H.) 



R. gallica. See under (i). 



R. hihernica. Irish Rose. May-June. Stems erect, branches arching. Lflts. 

 ov., I, downy below, Fls, i|, pink, solitary or in threes, smooth-stalked, 

 sepals with expanded tips. Fruit |, round, red, calyx persistent, Ireland. 

 (Fig. 16 E.) 



R. Hugonis. April. Stems red, slender, arching, thorns straight and flattened. 

 Lflts. ov., f, finely toothed. Fls. 2, yellow, solitary. Fruit \, round, 

 blackish red, calyx persistent. China. (Fig. 15 H.) 



{R. cantabrigiensis, with fls. a little deeper yellow, is a cross between 

 this and R. sericea). 



R. omeiensis. Mount Omi Rose. May-June. Stems erect; prickles wide, 

 flattened. Lflts. ov., i, hairless or nearly so. Fls. i|, white. Fruit |, 

 pear-shaped, bright red on thick yellow stalk. China. 



R. pendulina{R. alpina). May-June. Stems slender; prickles few or none. 

 Lflts. ov., 2, double-toothed, downy below. Fls. i|, purplish pink, 

 solitary or in few-flowered clusters. Fruit i, oblong, bright red, nodding. 

 Europe. 



R. rubrifolia {R. ferruginea). June-July. Stems and Is. purple. Fls. i|, deep 

 red, in small clusters. Fruit |, round, red. Mountains of Central Europe. 



R. rugosa. Ramanas Rose. June-July. Stems stout, very prickly. Lflts. ov., 

 1 1, toothed at outer end, wrinkled above, downy below. Fls. 3I, purplish 

 rose, solitary or in small clusters, very fragrant, sepals long and hairy. 

 Fruit I, bright red, with long persistent calyx. Japan. (Fig. 15 c.) 



Variety alba. Fls, white, 

 YsLTiety flore pleno. Fls, double. 



R. sericea. See under (i). 



R. spinosissima. Scotch or Burnet Rose. Dwarf bush up to 4 feet high, with 

 creeping roots and erect short-branched thorny and bristly stems. Ls. 

 closely set on branches; lflts. roundish ov., h, deep green, hairless. Fls. 2, 

 white or pink, solitary. Fruit |, round, dark brown or black, calyx 

 persistent. Europe (including Britain) and Siberia. (Fig. 16 F.) 

 Variety lutea. Fls. yellow. 



RUBUS. Brambles. Stem usually prickly or bristly, often long and trailing. 



