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Oxalis Bowei.¹—I should be much obliged to any one who will be so kind as to look at his flowers of this Oxalis, and observe where the summits of the branching stigmas stand with respect to the two sets of anthers. In all my plants the stigmas stand close beneath the lower anthers; but I have good reason to believe that two other forms exist—one with the stigmas standing above both sets of anthers, and the other with the stigmas between the two sets. If any one has flowers in either of these latter states, that is long-styled or mid-styled, I should be grateful if he would send me a few rather young flowers wrapped up in tin-foil or oil-silk; for I should thus be enabled to fertilize my own flowers and obtain seed. Charles Darwin, Down, Bromley, Kent.

¹ Wood sorrel. See Correspondence vol. 14, pp. 291-2.