65 
Labellum. In the Prof. David variety five cases of doubling 
have been observed. 
The same thing in a variety only designated as »hybrida”’. 
A flower known as Me Crozy has no labellum, whereas 
A specimen of Antoine Borton has two labella. 
In a ,Prof. David” the labellum is found replaced by a stamen. 
Alae. We have several times observed three alae in those 
varieties which as a rule have only two: @, # and y. 
Only @ is present. 
a shows an appendage. 
One of the alae twolobed. 
Two alae where in ordinary cases there are three. 
Mme Crozy. Of the three alae there are two with a lateral lobe. 
Only one ala present. 
Stamen. Mme Crozy: stamen with deep incision at top (about 
2 of the whole length), the anther being implanted at the base 
of the incision. Going downwards the incision becomes a ridge 
which gradually broadens to a petaloid appendage. 
Another specimen of the same variety. 7wo normal stamens. 
No labellum. 
Antoine Borton. No stamen. Two labella. 
One of the two flowers of a synanthy shows a stamen of 
which the petaloid portion is incised at top. 
-C. hybrida. Stamen altogether petaloid (fig. 7). Observed twice. 
; ; - re » (fig. 8) with two peta- 
loid appendages at the base. 
C. hybrida. Stamen completely filiform, but with only one 
anther-cell, so that the petaloid half is wanting. 
C. hybrida. The petaloid portion of the stamen firmly adheres 
to the (enlarged) style. 
Pistil. Only the style is referred to, as the ovary does not 
seem to be liable to deviations. : 
Style filiform i. e. without petaloid portion (observed five times). 
- Two styles grown together at the base, both of them three- 
winged. 
Ann. Jard. bot. Buitenz. 2e Sér. Vol. 1V. 5 
