green, dilate, and ovate (Wwtt.). Flowers in large terminal 
heads, like those of R. barbatum, of a deep scarlet colour. Calyx 
small, but quite distinct, of four separate lobes. Corolla broadly 
bell-shaped,. equally five-lobed. Stamens ten. Ovary quite 
glabrous. 
Fig. 1. Calyx and pistil. 2. Stamen. 3. Pistil, cut transversely :—magnified. 
sg 
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