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PLATE III. LETTER III. 
PAPILIONACEOUS FLOWERS. 
Pisum sativum. Garden Pea. 
Fig. 1. The peduncle or flower-stem of the 
pea, showing the papilionaceous 
corolla in three different situa¬ 
tions. 
a A young flower not fully expanded. 
b An expanded flower, showing the back ; 
the standard, or banner, fully dis¬ 
played, and the calyx cleft into five 
parts. 
c A side view of an expanded flower, 
showing the banner, wings, and keel 
in their natural situation. 
Fig. 2. The banner ( veocillum), obcordate 
or inversely heart-shaped, and 
emargdnate. 
O 
3. The two wings (alee). 
4. The keel (carina). 
5. The pistil and stamens in their na • 
turai situation. 
