23 
Anthurium (cristallinum Lndn $) 
Legit J. J. Smira in horto bog., May 1917. 
Stem and spadix normal, 3 spathes. (Fig. 23). 
Anthurium cristalli Lndn. 
Legit J. J. Swmirn in horto bog., January 1918. 
Two spathes, otherwise normal. 
Spathiphyllum cannaefolium Schott. 
Legit J. J. Smira in horto bog., Aug. 1917. 
Inflorescence with two spathes, of which especially the lowest 
is leaflike. (Fig. 24). 
XYRIDEAE. 
Xyris melanocephala Miq. 
Legit C. A. Backrr, Rantja Oepas, Java, March 1918. 
At the top of the two scapi the capitulum replaced by a 
leafy sprout. (Fig. 25). 
BROMELIACEAK. 
Ananas sativus Mill. 
Legit L. G. pen Bercer, Juny 1918. 
Fasciation of the inflorescence. 
At the top of a somewhat fasciating stem we find a purely — 
reniform but flattened whole covered with bracts and swollen 
ovaries on both sides. Its height amounts to Sc¢.M., its width 
to 15 c.M. The edge, somewhat swollen, produces a great number 
of leafy rosettes of the ordinary shape but of much smaller 
size compared with the normal rosette. Fasciation and repeated 
dichotomy have here been at work. The number of rosettes 
amounts to about 16, but owing to their crammed position 
their outlines cannot readily be distinguished. 
GRAMINEAE. 
Centotheca lappacea Dew. 
Legit C. A. Backer, Tjampea, Java, March 1917. se 
Some of the youngest flowers of the pranches of a panicle 
