36 



The corolla is urceolate, white or whitish-green (Fig. 24); 

 its length is 5 to 6mm.; and its breadth at the base 5 mm.; 



Fig. 24. Arctostapliylos alinna. 

 A, B, A flower seen from the outside and in longitudinal section ; the pollen has already 

 fallen out of the anthers though they have but just opened (Vi). C, An anther of the 

 flower in question; the appendages absent. D, Longitudinal section through a flower with 

 rather short style; pollen grains adhere to the hairs of the mner surface of the corolla 

 (as in В and K). E, F, G. Anthers and stamens in different positions and of different ages 

 (2o/i). B, J, The anthers from a bud (-"/i). K, Longitudinal section through a flower with 

 long style. L, The limb and the throat of the flower seen from above; in the throat the 

 stigma may be seen (breadth of limb about З^/з mm. ; Avidth of throat 1 mm.). M, pollen 



tetrad. (E. W., 1886.) 



at the limb 2*5 to 3 mm. ; the width of its throat is 1 mm. 

 The interior of the corolla is covered with erect hairs extending 

 as far as to the margin of the limb (Fig. 24 D, B, K). The 



