300 THE GENTIAN FAMILY. 
Stamens and divisions of the corolla 5,(sometimes with 5 
additional smaller lobes). 
Flowers pink or red. Calyx divided to the base. Style . 
deciduous . $ . . ° . 7 : . 2, ERYTHRAA. 
Flowers blue. Calyx not divided below the middle. 
Style remaining long after the flowering is over . 3 
Stamens and divisions of the corolla eases 8. Corolla 
yellow, rotate ‘ 4, CHLORA. 
6 
5 
. GENTIANA, 
Leaves alternate. Water plants. 
Leaves entire, orbicular. Flowers yellow 
Leaves with 3 leaflets. Flowers white, fringed within . 
I. CICENDIA. CICENDIA. 
Very small annuals, differing from G'entiana in their deciduous style, 
and from EHrythrewa in the short, broad tube of the corolla, with the 
parts of the flowers in fours instead of fives. ‘The few species are all 
Kuropean, and some botanists limit the genus to the single C. pusilla, 
regarding the C. jiliformis as generally distinct under the name of 
Microcala. 
Stems simple or with few erect branches. Calyx- ok broad and | 
short . : : . LC. filiformis. 
Stems much branched. Calyx- -segments linear . : . . 2 C. pusilta. 
1. C. filiformis, Reichb. (fig. 674). Slender 0. —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 
campanulate, with 4 broad, short lobes ; limb of the corolla also 4-cleft. 
Capsule globular, l-celled. Alicrocala filiformis, Link. 
In moist, sandy situations, common in western France and Spain, ex- 
tending northward to Denmark, and eastward in southern Europe to 
Sicily and some other parts of the Mediterranean. In Britain, only in 
the south-western counties of England, and in the extreme south-west 
of Ireland. Fl. summer. 
2. ©. pusilla, Griseb. (fig. 675). Dwarf C.—Usually a smaller 
plant than C. filiformis, and much more branched, but chiefly distin- 
guished by its pink, white, or pale yellow flowers, with the calyx 
divided to the base into narrow segments, instead of the short, broad 
teeth of C. filiformis. 
In moist, sandy situations, in France, Spain, and here and there in 
the west Mediterranean region, and has been found in the Channel 
Islands. Fl. summer. 
. LIMNANTHEMUM, 
. MENYANTHES, . 
i 
, 
é 
% 
: 
c: 
IL ERYTHRAIA. CENTAURY. 
Annuals, with pink, or, in some exotic species, pale yellow flowers, 
differing from Gentiana by their more deeply divided calyx, their 
deciduous style, their anthers, which become more or less spirally 
twisted after shedding their pollen, and by the capsule, in which the 
seed-bearing edges of the valves meet in the centre, so as to divide it 
more completely into 2 cells than in most others of the family. 
1. E. Centaurium, Pers. (fig. 676). Common Centauwry.—An erect — 
annual, from an inch or two to a foot high, usually much branched in ~ 
the upper part. Lower leaves usually broadly ovate, forming a spread- — 
ing radical tuft ; the upper ones in distant pairs, varying from ovate or 
oblong to narrow-linear. Flowers pink or red, usually numerous, in 
