Example Sentences

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Fritz Muller formerly believed that a species of Oxalis, which is so abundant in St. Catharina that it borders the roads for miles, was dimorphic instead of trimorphic.

From The Different Forms of Flowers on Plants of the Same Species by Darwin, Charles

The clear evidence that the species just described is heterostyled and trimorphic is the more valuable as there is some doubt with respect to P. cordata, an inhabitant of the United States.

From The Different Forms of Flowers on Plants of the Same Species by Darwin, Charles

Some facts communicated to me by Fritz Muller afford excellent evidence of the utter sterility of one of the forms of certain trimorphic species of Oxalis, when growing isolated.

From The Different Forms of Flowers on Plants of the Same Species by Darwin, Charles

These latter plants cannot fail to act on each other like dimorphic or trimorphic species, in which the union of two individuals is necessary for full and normal fertility.

From Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Darwin, Charles

Other plants are trimorphic, as species of Lythrum, and proper fertilization is only effected by combination of parts of equal length.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" by Various