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plants new to Nebraska among others Mentzelia dispersa Watson or near to it a Lygodesmia with runcinata leaves, a Concifer with didymous pod and the radical leaves clustered as in the Live-for-ever or the cabbage two Bigelovia [e.c.] From Gering we went in to the Kiwa valley. The field was not so good, but we added two Eriogonums. From Kiwa we entered the Pleasent Valley, a continuation of the Pumpkin Seed, went up to the Wyoming line, followed it within a mile or to till the mouth of Horse Creek, tributary to North Platte. Between Horse Creek and North Platte there was a good field for botanizing. We then followed the river down to Gering, and crossed it there. On the north Side of the river the field was very poor, only Sunflowers and Chenopodium lepto phyllum for miles. The only good find was Petalostemum macrostachyus. But we saw fine grain fields under the Irrigation. On the return we passed through Gering and Asford up to the divide between Pumpkin Seed and Lawrence Fork Valleys, where we passed last sunday among friends. Last Monday we started again, crossed over to the stage road to Kimball.
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On the way, we botanized at three places, found a new Phlox, the [foouth] on our trip, a new Vesicaria, a new composite all in fruit ec. I whish that I had been here in may and june. What a collection of fine flower I had made. My intention is to follow Lode Pole Creek and its draw down to Deuel Co. where I have a little more collection to do - I send the boxes unpaid as you was kind enough to promise to pay it. Yours Truly P. A. Rydberg My address will be c/o Rev. F. W. Bergquist Chappell, Deuel Co.
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ARNOLD ARBORETUM, HARVARD UNIVERSITY, DIRECTOR'S OFFICE,
Brookline, Mass., August 21, 1891.
Dictated.
My dear Professor Bessey:
How about Plums and Cherries? I have been rather hoping that I should hear something from you about that Sandcherry and also about the Nebraska Chokecherry which still perplexes me. I am get ting anxious about these things as I have to take up the genus next winter and of course shall have to rely on material gathered this sum mer. I want very much to see specimens of the mature fruit and fo liage of the form of Prunus Americana which grows in your part of the country. Can you find anyone who would be willing to send them to me? I am inclined to think that there are two or three species con founded in what has usually been called Prunus Americana and I am try ing to clear up the doubts which exist in my mind about this tree.
I venture to ask for your co-operation.
Faithfully yours, C. S. Sargent (signature)
Prof. Bessey, Ames, Iowa.
Laid on my desk and opened by mistake E.W.Stanton