GENTIANACE^R. 



559 



Stamens and divisions of the corolla usually 8. Corolla 



yellow, rotate 4. Chlora. 



Leaves alternate. Water plants. 



Leaves entire, orbicular. Flowers yellow 6. Limnanth. 



Leaves with 3 leaflets. Flowers white, fringed within . . 5. Buckbean. 



I. CICENDIA. CICENDIA. 



Very small annuals, differing from Gentian in their deciduous style, 

 and from Erythrcea in the short, broad tube of the corolla, with the 

 parts of the flowers in fours instead of fives. The few species 

 are all European. 



Stems simple or with few erect branches. Calyx -teeth broad 



and short 1. Slender C. 



Stems much branched. Calyx- segments linear 2. Dwarf G. 



1. Slender Cicendia. Cicendia filiformis, Beichb. 



(Fig. 667.) 



(Exacum fillforme, Eng. Bot. t. 235.) 



A slender annual, about 2 inches high, 

 with a few pairs of small, narrow leaves, 

 chiefly near the base of the stem, and 

 either simple and 1-flowered or divided 

 into 2 or 3 branches, each with a single 

 small yellow flower. Calyx campanu- 

 late, with 4 broad, short lobes ; limb of 

 the corolla also 4-cleft. Capsule glo- 

 bular, 1-celled. 



In moist, sandy situations, common in 

 western France and Spain, extending 

 northward to Denmark, and eastward 



in southern Europe to Sicily and some other parts of the Mediter- 

 ranean. In Britain, only in the south-western counties of England, 

 and in the extreme south-west of Ireland. Fl. summer. 



Fig. 667. 



2. Dwarf Cicendia. Cicendia pusilla, Griseb. (Fig. 668.) 



(C. Candollii, Bab. Man.) 



Usually a still smaller plant than the slender C, and much more 

 branched, but chiefly distinguished by its pink, white, or pale-yellow 

 flowers, with the calyx divided to the base into narrow segments, in- 

 stead of the short, broad teeth of the slender C. 



