DICOTYLEDONOUS PLANTS 



153 



2. B. manicata, Cels. Herb, with a short and fleshy stem. Leaves 

 very unevenly heart-shaped, taper-pointed, the margins bristly 

 fringed and sometimes with very remote teeth, upper surface dark 

 green, lower sm'face and petioles partly covered with long fringed 

 scales, stipules larger and fringed. Flowers flesh-colored, handsome, 

 in a loose panicle borne on a long peduncle. Cultivated from Mexico. 



3. B. coccinea, Hook. Tall, 3-10 ft. high, somewhat shrubby, 

 often with many erect, smooth stems from the same root. Leaves 



D B 



Fig. 18. — Begonia Flowers. 



A, staminate flower ; B, pistillate flower ; C, twisted stigmas, enlarged ; D, 

 cross-section of ovary ; o, ovary ; s, sepals ; p, petals. 



broadly and unevenly lanceolate or ovate-lanceolate, haK-heart-shaped 

 or broadly one-eared at the base, acute, nearly or quite entire, smooth, 

 dull green above, sometimes tinged with reddish below. Peduncles 

 several-many-flowered, reddish, slender, somewhat nodding. Flowers 

 showy, medium sized, scarlet. Fruit showy, scarlet, very broadly 

 winged. Cultivated from Peru. [Often called B. rubra.'] 



4. B. incarnata, Link and Otto. Herbaceous or mainly so, rather 

 tall (2-4 ft.), stems clustered, slightly reclining, hairy when young, 



