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INTRODUCTION TO BOTANY. 
% One-petaled, monopetala , unipetala . A single petal 
not entirely surrounding the sexual organs, as in the gamo- 
petalous corollas. Amorpha. 
4. Form . 
Crosslike, Corolla cruciformis. Regular and composed 
of four petals with long claws, and the expansion open, 
disposed in a cross. Cruciferse. 
Roselike, rosacea , roselala . Regular and composed of 
three, four, or five petals, with short claws, and diverging 
from one another. Rosacese, Dryadeae, Chelidonium, 
Papaver. 
Clovegilliflowerlike, caryophyllata . Regular and com- 
posed of five petals, the claws being, very long, but sur- 
rounded and hidden by the calyx. Dianthus, Silene. 
Butterflylike, papilionacea. Composed of five petals, of 
three different forms and sizes, and to which peculiar 
names have been assigned. Leguminosae. 
1. The standard, Vexillum. The large wide petal, 
usually turned back, that overtops the others. 
2. The two wings, Alee , Talarce. The two side petals. 
3. The keel, Carina , Scaphium , — tropis. Formed of the 
two lowermost petals usually turned up at their tip, and 
either touching each other, or soldered together. 
Irregularly many petaled, polypetala anomala . Com- 
posed of irregular petals, but not butterflylike. Aconitum, 
Delphinium, Tropaeolum, Viola. 
Tubulate, tubulata. Monopetalous, regular, with a tube. 
Many labiatae. 
Tubulous, tubulosa . Monopetalous, regular, with a tube 
longer than the diameter of the tube. Hamelia, Spigelia 
Marylandica. 
Bellshape, campanulata , campaniformis . Monopetalous, 
regular, in form of a bell. Atropa lethalis, Pneumonanthe 
vulgaris, Vitis-Idaea punctifolia, Campanula urticifolia. 
Globular, globosa, globulosa . Andromeda polifolia. 
Eggshape, ovata. Arbutus, Eremocallis glomerata, 
Menziesia polifolia. 
Pitchershape, urceolata. Vaccinium montanum. 
Clubshaped, claviformis , clavata. Erica pinea, E. ce- 
rinthoides. 
Funnelshape, infundibulifprmis. Nerium Oleander, Ni- 
cotiana Tabaciun* 
