90 



parts, visible from two parallel grooves at the back. The lateral 

 parts bear in a few of our flowers an anther more or less 

 developed which indubitably corresponds with a sterile inner 

 stamen (auricula). This development is accompanied by a strong 

 tension to petalody, as is represented in fig. 10, 11 a . . . a. 



3". Development of two extra rostella which evidently cor- 

 respond with the tops of the two fertile stigmas. 



Phalaenopsis amabilis Bl. 



Coll. Mr. Dumas in suo horto Buitenzorg, January 1913. 



Habitat the Mai. Archipelago. 



A vs^eak specimen, raceme only with five flowers, lateral sepals 

 coalesced to a synsepalum, no lip. Synsepalum in various degrees 

 grown together with the upper sepal. 



Column with a projectiug callus at the base (fig. 12). 



Arachnis (Renanthera) Lowii Rchb. f. 



Coll. J. J. S. in bog. 1913. 



Habitat West Borneo. 



As is well known the two or three lowest flowers of the 

 long raceme are difi'erent from the i"est both in shape, colour 

 and odour '). The specimen in question bears a flower of which 

 some of the parts of the perianth show colour and shape of 

 the lowest flower and at the same time the characteristics of 

 the higher ones. 



Crassulaceae. 



Kalanchoe prolifera (= Bryophyllum proliferum Bowie). 



Coll. J. J. S. in suo horto 1912. 



Habitat South Africa (running wild in Java). 



The apices of some of the leaflobes have been transformed 

 to a stalked pitcher in the same way as in Codiaeum varie- 

 gatum var. appendiculatum. 



Rosacea e. 

 Rosa hybrida. 



Coll. Mr. D. VAN MuLLEM, Depok, Aug. 1913. 



1) Winkler iu Ann. du Jardin bot, de Buitenzorg, 2e Serie V, p. 1. 



