69 



an oblong excrescence (ovule ?); stigma abnormal (fig. 17). Flower 

 for the rest normal. 



Eucliaris amazonica Ldl (= grandijiora Pinch.). 



Habitat New Granada. 



Coll. May 1896, 1897 (Prof. Janse). 



1°. The two diagrams show that in contrast with the normal 

 flower (fig. 18) the sepals S' and S^ of fig. 19 join their margins 

 thus enclosing P'. The enclosed petal adheres to the tube of the 

 filaments, its stamen being barren. 



2°. Sy nan thy. 



Hippeasti'um hyhridum. 



Habitat. For the majority of the species South-America. 



Coll. June 1898. 



Sepals 2, petals 2, stamens 2 + 2, ovary two-celled, stigmas 2. 



Zephyranthes carinata Herb., rosea Lndl., spec, et varietates 

 diversae. 



Habitat. North and South America. 



Coll. August 1894, April 1895, June 1895, September 1898. 



The relatively great number (16) of flowers which we had an 

 opportunity of examining were chiefly characterized by the 

 different whorls being doubled and that by the kind in the w^ay 

 known ^collateral doubling". From what follows it will be seen 

 that the doubling aff'ects now one whorl only, now more than 

 one, and at times all of them. In order to facilitate a survey, 

 we express the phenomenon in plain flower formulae and men- 

 tion at the same sime the eventual jjeculiarities of some of the 

 flowers. 



A. The formula of tioo specimens is : 



S3 Pj Sts+s Cf ^-) 



In this flower it is only one of the carpels that is doubled. 

 In n°. 1 the fourth stigma is a little smaller than the three others. 

 In n°. 2 two cells of the ovary taken together are just as 

 large as each of the two others. 



B. The formula of two specimens is: 



S3 P3 St3 + 3 yj^r,-) 

 So here there are 5 cells in the ovary. 



