Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants
CHAPTER I.
DEFORMITIES 311
Formation of tubes, 312--In flower, 314--Spurs, 315--Contortion, 316--Spiral torsion, 319--Of leaf, 326--Adventitious tendrils, 326--Interrupted growth, 327--Cornute leaves, 328--Flattening, 328.