8 
time we have before us 11 flowers, of which numbers 1, 2, 5, 
8 and 11 are normal and 4 is undeveloped. Numbers 38,4, 
9 and 10 are normal as to their structure except as to the 
lip which has been replaced by a thread which is strongly bent 
up and down and surpasses the column in length (fig. 5). It is 
a very remarkable fact that a — wholly unknown — distur- 
bance affects a number of flowers which are placed in pairs 
between other flowers which are perfectly normal. 
Phalaenopsis amabilis BI. 
1911 ') we registered the inclination of petals to forming lips, 
1914*) beautiful pelories drew our attention, 1915°) we had 
to mention coalescense of the sepals. The cases newly come to 
hand and now to be described are: 
a) Legit E. Totiens, Blitar in suo horto, 1918. 
The flower represented in fig. 6 shows a petaloid (unpaired) 
sepal. The petals are normal save the contracted base. The 
most striking deviation consists in the coalescence of the paired 
sepals, the base of the column and the lip to one whole which 
bags out to a spur and is slightly denticulate at the top. Callus 
yellow with red specks, fairly normal. All the flowers of the 
inflorescence show this deviation. This is a very peculair case of 
pseudo-dimery. | : 
6) Legit J. van Brero, Weltevreden in suo horto, February 1916. 
Two flowers of the same inflorescence. 
Sepals normal, only a little wrinkled. Unpaired sepal 3.1 and 
3.4 ¢.M. long and 1.7 and 1.8¢.M. wide. Paired sepals 3.2 and 
3.85 c.M: long and 1.35 and 1.6 c¢.M. wide. 
Petals much narrower than usual, widely expanded, wrinkled 
acute, oblique, topportion very irregularly margined and lobed, 
3.1 and 3.2 eM. 1. and 1.7, 2.3 w. 
Lip with normal base (claw); side-lobes much narrower than 
usual, irregularly lineate, the narrowest acute (one, however, 
keeps almost the ordinary shape and is obtuse), on or inside 
1) 2e Série, Vol IX, p. 106. 
2) id. Vol. XIII, p. 133. 
3) id. Vol. XIV, p. 90. 
