356 THE PRIMROSE FAMILT. 



norles. Leaves opposite, broadly ovate or rounded, very obtuse, on short 

 stalks. Flowers yellow, large and handsome, on axillary peduncles, not so 

 long as the leaves ; the divisions of the calyx broadly ovate and pointed ; 

 the corolla concave, deeply divided into 5 ovate lobes. Stamens erect in the 

 centre, with the filaments slightly connected at the base. 



On banks, under hedges, and in moist pastures, all over Europe, except 

 the extreme north, and eastward to the Caucasus. Common in England, 

 extending apparently to the southern counties of Scotland, rare in Ireland. 

 Fl. summer and autumn. 



4. 'Vf^ood laysimachia. Iiysiiuacliia nemorum, Linn. 



(Eng. Bot. t. 537.) 



A procumbent plant, with the habit and rotate corolla of the common 

 Pimpernel, but with the yellow flowers and the capsule of a Li/simachia. 

 Stem slender, often rooting at the base, 6 inches to a foot long. Leaves op- 

 posite, broadly ovate, on short stalks. Pedicels slender, axillary, rather 

 longer than the leaves, each with a single, rather small flower. Calyx- 

 segments narrow and pointed. Corolla rotate, of a bright yellow. Stamens 

 quite free, with slender filaments. As the capsule ripens, the pedicels roll 

 round, as in the field Pimpernel. 



In woods and shady places, not uncommon in western Europe, extending 

 far northward in Scandinavia, and eastward through central Europe to 

 Transylvania. Generally distributed over Britain. FL all summer. 



V. TRIENTAIiE. TEIENTALIS. 



A single species, only distinguislied from Lysimachia by a somewhat dif- 

 ferent habit, and by the parts of the flower being usually in sevens instead 

 of in fives, although these numbers are not quite constant. 



1. Comnxon Trientale. Trientalis europsea, Linn. 

 (Eng. Bot. t. 15.) 



Rootstock perennial and slightly creeping. Stems erect, simple, 3 to 6 

 inches high, bearing at the top a tuft or irregular whorl of 5 or 6 leaves, 

 varying from obovate to lanceolate, usually pointed, the largest near 2 inches 

 long, with 2 or 3 small alternate leaves below the whorl. From the centre 

 of the leaves arise from 1 to 4 slender pedicels, about as long as the leaves, 

 each terminated by a single flower, white or pale pink, with a yellow ring, 

 rather larger than in the wood Lysimachia. Calyx-segments narrow. Co- 

 rolla rotate. Stamens with slender filaments, and short, recurved anthers. 



In woods, in northern and Arctic Europe, Asia, and America, reappearing 

 here and there in mountain woods of central Europe. Common in the 

 Scotch Higlilands, more rare in the north of England, and unknown in 

 Ireland. Fl. early summer. 



VI. GIiAUX. GLAUX. 



A single species, distinguished from all Primidacece by the absence of any 

 real corolla, the coloured campanulate calyx assuming the appearance of , 

 one, the stamens alternating with its lobes. Capsule opening in 4 valves. 



