gamopetalous

Cymose inflorescences, arising opposite to leaves (not axillary) near the ends of branches, bear gamopetalous flowers with 5-lobed corollas, which are white, yellow, purple, blue or striped, and about 3 cm across.

Chapter 25 1987

The largest number of instances of this malformation, not merely generically, but also individually, occurs in plants the members of whose floral whorls are not united one to the other; thus, it is far more common in polypetalous plants than in gamopetalous ones.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

When the plants in which these occurrences happen most frequently are compared together, it may be seen that partial or entire suppression of the floral envelopes, calyx, and corolla, is far more commonly met with in the polypetalous and hypogynous groups than in the gamopetalous or epigynous series.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

Another feature of interest is the rarity with which axillary prolification is found in irregular gamopetalous blooms.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

Flowers that, under ordinary circumstances, are gamopetalous, become, in some instances, multiplied by the formation of additional segments, just as in the case of polypetalous corollas; but in these cases the corollas become polypetalous, their petals do not cohere one with another.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

The following list contains the names of the genera in which this separation of the petals of an ordinarily gamopetalous flower takes place most frequently.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

Dicotyledons the gamopetalous forms are admitted to be the highest development and a dominant one of our epoch.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various

= -- The instances of this are more frequent than in the case of the calyx, and admit of classification according as they occur in polypetalous or gamopetalous flowers, on the outer or inner surface of the petals, &c.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

Well-defined polypetalous and gamopetalous genera sometimes occur in the same order, and even

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various

Following Augustin Pyranius De Candolle, botanists have applied the term cohesion to the coalescence of parts of the same organ or of members of the same whorl; for instance, to the union of the sepals in a gamosepalous calyx, or of the petals in a gamopetalous corolla.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters