460 The Botanical Gazette. [December, 
seemingly axillary peduncled racemes, which in reality, 
however, all terminate as many axes of growth. 
Flowers with the lower side turned up. —Such an 
one is C/itorta Mariana L. The peduncle of the one- to 
three-flowered raceme is axillary and bears two minute oppo- 
site bracts at its base. In typical cases the lower flower 
pedicel on this raceme is subtended by three bracts of which 
the lateral ones represent stipules and the central one which 
is tripartite represents the subtending leaf. At the base of 
the pedicel are two opposite bracts equal in size to those last 
mentioned, so that five bracts cluster around its base. At 
the base of the calyx two similar opposite bracts occur, 
which structurally decussate with the lower pair, though ow- 
ing to a twist of the pedicel through ninety degrees the 
last two pairs of bracts lie in the same plane. 
This twist can easily be followed. Without it, the keel of 
the flower should structurally face laterally; following the gen- 
eral habit of Leguminosz it should face downward, as a mat- 
ter of fact however, and largely owing to the twist of the ped- 
icel, it faces upwards and the flower is thus turned with the 
lower side up. The upper flower pedicel has, at its base, one 
bract to represent the subtending leaf, or a tripartite bract 
when solitary. Two more bracts, opposite to each other, 
occur at the base of this pedicel, two more occur as usual at 
the base of the calyx, and the intermediate pedicel is again 
twisted. The tip of the axis of the raceme ts aborted and re- 
mains as a minute tip at one side of the base of the last ped- 
icel, , 
Owing to the long tubular calyx and the broadly spreading 
habit of the vexillum the flower has a narrowly obovate ap- 
pearance. The wings equal five-sixths the length of the hes 
illum, and the last two-fifths of the length is free from the ee 
and is large and spreading. The keel is one-third the pic 
of the vexillum. It is composed of two petals which a fe 
together by a ridge near the inner margin of one petal rie r 
deep groove along its outside and a corresponding ee: eS 
portion at the inner margin of the other petal, alittle muctlas 
inous substance helping to keep them in place. The ra 
are free except near the middle of the expanded termina fe a 
tion of the side of the keel, where they are strongly past ne 
_ the keel by a mucilaginous substance. The whole thus petite 
case for the stamens and pistil, which is closed below (in 4§ 
