"Caulini vero apetali fertiles sunt,
et seriores. Habitat passim Upsaliae."
I find this, and a plurality of other species, indicated by Linnaeus as
having triangular stalks, "caule triquetro," meaning, I suppose, the kind
sketched in Figure 1 above.
39. VII. VIOLA ARVENSIS. Field Violet. Flora Danica, 1748. A coarse running
weed; nearly like Viola Cornuta, but feebly lilac and yellow in colour. In
dry fields, and with corn.
Flora Suecica, 791; under titles of Viola 'tricolor' and 'bicolor
arvensis,' and Herba Trinitatis. Habitat ubique in _sterilibus_ arvis:
"Planta vix datur in qua evidentius perspicitur generationis opus, quam in
hujus cavo apertoque stigmate."
It is quite undeterminable, among present botanical instructors, how far
this plant is only a rampant and over-indulged condition of the true pansy
(Viola Psyche); but my own scholars are to remember that the true pansy is
full purple and blue with golden centre; and that the disorderly field
varieties of it, if indeed not scientifically distinguishable, are entirely
separate from the wild flower by their scattered form and faded or altered
colour. I follow the Flora Danica in giving them as a distinct species.
40. VIII. VIOLA PALUSTRIS. Marsh Violet. Flora Danica, 83. As there drawn,
the most finished and delicate in form of all the violet tribe; warm white,
streaked with red; and as pure in outline as an oxalis, both in flower and
leaf: it is like a violet imitating oxalis and anagallis.
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