62 



IRIDACEAE. 



Pardanthus sinensis Ker. Gawl. (= Belamcanda 2m7ictata 

 Moench.). 



Habitat: China and Japan '). 



Coll. Febr. and March 1893, March 1895. 

 a) Tetranierous flower (fig. 1). 



/>) Two tetramerons flowers, one of the ovary-cells a little 

 smaller. This case may have been broiight about by one of the 

 sepals and its stamen and at the same time by one of the 

 petals being doubled. The stigma of one of these specimens 

 has the shape of a long funnel open at one side. 



c) A petal of a flower otherwise quite normal has grown 

 together with its stamen and with an antisepalous stamen 

 next to it. 



d) In the place ordinarily occupied by a petal with a stamen, 

 we find a cross of the two (fig. 2). Most probably petalody of 

 the stamen with suppression of the corresponding petal, because 



e) on the same plant a month afterwards a flower appeared 

 with a stamen of which one of the anther-cells showed peta- 

 lody (fig. 3) with the peculiar colour of the corolla : light orange 

 with red specks. Another stamen of this flower shows the 

 beginning of the same change viz. a small red speck at the 

 foot of the anther. 



Notwithstanding these changes it remains possible that the 

 part described in d) is the outcome of a petal and its stamen 

 having grown together. 



f) Flower incompletely trimerous, there being only tw^o petals. 

 Consequently there is an open space between two of the sepals. 

 The latter show each a notch on the margins facing one another 

 (fig. 4). 



Another flower of the same plant also lacks a petal, while 

 the two sepals flanking the open space likewise show., a notch, 

 this time quite near the top. One of these sepals shows more- 



1) Mr. Smith found this plant all over Java and also in the isle of Ambon. 



