SOME BICARPELLARY BEANS. 19 
supposed, is shown not only by the mode of development 
indicated in the last case, but also by the arrangement of the 
veins, as figured in fig. 5. Anomalous though it may seem, it 
is diffieult to eseape the conviction that we are confronted with 
a fruit composed of a carpel and a half. 
The first notice discovered of bicarpellary fruits of Phaseolus 
was that by Moquin-Tandon (1) in 1841, mention being made 
of the occurrence of two or even three carpels. 
In 1844, Kirschleger (2) described a form much like that shown 
in fig. 4, ascribing it to * Phaseolus vulgaris digynus”; Wydler (4), 
Fig. 5. 
e 5. n 
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i \ a a b 
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Vc 
Fig. 6. 
a 
1 
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L] 
e 
1860, and Sehlotthauber (8) described double-fruited beans; 
while Du Hamel (5), in his * Physiologie des Arbres,’ very roughly 
figures a case similar to that in fig.4. Schlechtendal (6) describes 
a case with two carpels fused below and free above, and only 
one-seeded. 
Dr. Maxwell Masters (7) in his ‘Teratology’ gives a list of 
leguminous plants in which two or more carpels have been found. 
This list includes representatives of the Mimosoides, the Cesal- 
pinioidez, and the Papilionoidez. 
Fermond (9) described a form which would appear to closely 
c2 
s- 
