div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=the-origin-of-our-vernal-florahtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: The Origin of our Vernal Flora loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentsusreader031viewer20220205225750678e1a28ab0f07ac13afhtml5thumbnails1jpg width=140 height=200 divp©1882 Nature Publishing Grouppdiv