II CAMPANULACE.E 257 



to the outline of the valve. Along the centre is a 

 shallow groove. At maturity this process becomes 

 convex on the inner face, and deeply concave on the 

 outer, breaking away from the rest of the capsule, while 

 a,t the same time the thin edges turn outwards. The 

 seeds are of large size for the genus, oblong, often 

 broader at the opposite end from the hilum, biconvex, 

 and frequently surrounded at the edges by a narrow, 

 thin margin, especially when not over well filled. The 

 testa is bright reddish brown, polished, smooth, and 

 shining. 



C. rotundifolia (Harebell). — The rounded radical 

 leaves (see Viola palustris, p. 29), from which this 

 beautiful plant has received its name, are generally 

 withered before the flowers open. The upper leaves are 

 narrow. The plant is glabrous or pubescent. 



C. rapunculoides. — The flowers are borne in long ter- 

 minal racemes. The capsules are hanging, but small 

 doors open near the base, and therefore at the upper 

 part, through which the seeds are jerked during wind. 

 They close if it rains, and open again when the sun 

 comes out. The plant is glabrous or pubescent. 



C. Trachelium has the flowers in clusters. According 

 to Kerner, at Innsbruck the flower is open from 6-7 in 

 the morning to 6-7 at night. On the Brenner the flowers 

 are white. The leaves are scabrous, with short hairs ; 

 the stem hispid. 



C. Rapunculus. — The flowers are in long terminal 

 racemes. The plant is hairy and rather rough ; rarely 

 glabrous. 



C. glomerata. — The flowers are sessile, in compact 

 ■clusters. The plant is glabrous or pubescent. 



C. latifolia (Giant Campanula). — The blue or white 

 flowers are solitary in the axils of the upper leaves. 

 They were well described long ago by Pontedera.^ The 

 capsule is hanging. 



C. patula is pubescent. The flowers are in a spread- 

 ing panicle, more open than in the other species. They 



^ Anthologia, 1720. 



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