. Contributions from the Botanical Laboratory, vol. 1. Botany; Botany. < 6 Rothrock.—Riidbeckia hirta, L. • Fig. 1 is another ray flower. Beside it and to the right one recognizes a perfect tubular flower. From this ray, in the centre, apparently, there arise two organs which probably represent stigmas ; one of these, however, is enlarged above as though it were attempting to form another ray; the other remains thread-like. To the right of these stigmas, indicated by the dotted lines, are two smaller abortive heads. Fig. ^ shows the remarkable foliar expansion of the stigmas arising from a


. Contributions from the Botanical Laboratory, vol. 1. Botany; Botany. < 6 Rothrock.—Riidbeckia hirta, L. • Fig. 1 is another ray flower. Beside it and to the right one recognizes a perfect tubular flower. From this ray, in the centre, apparently, there arise two organs which probably represent stigmas ; one of these, however, is enlarged above as though it were attempting to form another ray; the other remains thread-like. To the right of these stigmas, indicated by the dotted lines, are two smaller abortive heads. Fig. ^ shows the remarkable foliar expansion of the stigmas arising from a well-marked tubular flower. i Vol. I VhiW I rni\'.IV'niisvlvnnia,. Ho 111 rock oil Hiidberkia hii' Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory. Philadelphia : University of Pennsylvania Press


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1892