468 



The hairs in the inner parts of the flower and their dis- 

 Irihution has likewise heen descrihed in detail by Warming. 

 I shall only mention the dilîerent types which occur: 1) Glan- 

 dular hairs, hut (he glands are not sessile, as they are found 

 to he on the foliage-leaves. Morphologically these hairs prob- 

 ably correspond with the long glandular hairs of the leaves 

 (Fig. 9, F). 2) Fig. 10, H. These hairs are likewise multi- 

 cellular; sometimes there is an indication of the development 

 of a glandular head. 3) Short cylindrical papillae, mere pro- 

 longations of the epidermis; these are found in the spur only 

 (Fig. 9, E]. The importance of these hairs is yet unknown, 

 their secretum is mucilage, as far as investigated. According 

 to Stadler their secretum serves as an alluring matter for insects, 

 at any rate in F.alpinci'^ this species being wanting in honey. It 

 does not seem to be very wrong to use this explanation re- 

 garding all the hairs in the flower of Finguicula. The flower is 

 visited by small insects, which are however valueless to it, and 

 are found dead in the spur. Among the small animals, found 

 in the inner parts of the flower, Warming mentions a Rotatoria, 

 a circumstance, taken by him, however, to be a mere casually. 

 In flowers from Denmark I have observed a great many inde- 

 terminable parts of chitin, as well as wings, parts of legs, 

 small Hotnopterae, Acarhtae, etc., together with some black, 

 indeterminable masses of organic nature; in the arctic speci- 

 mens I have found the latter only. The above-mentioned 

 contents of the spur seem to support Stadler's views. 



Further it must be mentioned, that deformations are often 

 found in the flowers of the arctic specimens of P. vulgaris, 

 some examples are figured in Fig. 10; whether the arctic type 

 is different from the temperate one on this point I cannot say, 

 but it does not seem to be probable. Other examples are 

 mentioned by Rosenvinge (1896 a.) 



In specimens from Denmark and the Færoes Rostudp has 

 found an Ustilago { U. Pinguiculae Rostrdp) ; this I have not 

 observed in arctic specimens. 



