14 BOTANICAL BULLETIN. 



rium, L'Her., has come sparingly, whether from the east or the west, I know not. 

 A. few specimens of Trifolium procumheus, L., and one of Lepidium cnmpestrc, L., 

 have been detected here. Tragopogon pratensls also is sometimes spontaneous by 

 our roadsides. — Frank H. Tuthill, Kahinuizoo, Mich. 



In answer to a query contained in the above article we have inserted a trans- 

 lation of Dr. Gray's description of Polygomim Hartwrightii. 



Polygonum Hartwrightii, Gray (Proc. Amer. Acad., Dec. 1870). — Persicaria. 

 DiGYNA. Strigose-hirsute or smoothish; stem less than a foot high, erect, striate, 

 equally leafy even to the top; leaves broadly lanceolate, acite or obtusish at each 

 end, short-petioled ; oehre<e leaf-like to the middle, hypocrateriform, limb foliace- 

 ous, reticulate, repand, setose-ciliate ; peduncle erect, not''glaHdulose, bearing 

 mostly a solitary, dense, cylindrical spike; bracts surpassing the pedicels, perigo- 

 nium rose-colored, without glands; stamens 5; style deeply 2 cleft. — Sedgy bogs, 

 New York, from Herkimer to Yates couuty, and Michigan. 



This plant was collected also at Fort Bridger. southwestern Wyoming, in Au- 

 gust, 1873, by Prof. Porter. 



Some plants common to Plumas County, California, and the Black Hills 

 OF Dakota. — In the list of plants collected in the Black Hills during the summer 

 of 1874, 1 am pleased to observe that sixteen of its species enumerated are found in 

 abundance in our couuty, viz : 



Aconitum nastitum, Fisch. Linum perenne, L. 



Lupinus ornatus, Dougl. Lupinus parviflorus, Nutt. 



Lupinus leucoplii/llus, Lindl. Epilohiri)iiangust>'fo^ium, L. 



Canim Gairdneri, Benth. & Hook, Galium bortale, L, 



Erigeron Canadense, L. Chcenactis Douglasii, Hooli. & Arn. 



Achillea Millefolium, L. Mimulus lutens, L. 



Lophanthus anisatus, Benth. Stachi/s pahistris, L. 



Gilia pungens, Benth. Collomia linearis, Nutt. 



Mrs. Mary E. Pulsifer Ames, Taylorsville, Indian Valley, Plumas Co., Califor- 

 nia, Dec. 8, 1875. 



A new locality for the Yellow-Rattle. — Rhinantlius Crista-galli, L., is 

 an abundant plant here. In June its blossoms are quite conspicuous in the mead- 

 ows bordering the Naugatuck river and occasional specimens may be found upon 

 the hills. The only localities in the United States hitherto recorded are a small 

 patch discovered by Professor Tuckermanin the "subalpine district" of Mt. Wash- 

 ington, N. H., and the meadows of Plymouth, Mass., where it was found by Dr. 

 Bigelow. Messrs. Hall and Harbour also found it in the Eocky Mountains of Col- 

 orado Territory in 1862. It occurs upon tlie north shore of Lake Superior, accord- 

 ing to Professor Agassiz, and " in fields and meadows," Lower Canada, according 

 to Pursh, and probabl}^ it is common northward. Now that Hermann Muller has 

 shown the plant has not the characters of an alpine species, it must be regarded as 

 a straggler in its ijositioii upon Mt. Washington, and its occurrence in Waterbury 

 renders it probable that the plant is (contrar}- to Professor Gray's supposition) 

 indigenous at its Plymouth locality. — W. H. Patton, Waterhury, Conn. 



Some Great Ragweeds. — In the river bottom below the village of Hanover, is 

 a ravine of about twenty rods in length b}^ four or five in breadth, frequently 

 flooded by the backwater in freshets, which seems to have taken advantage of its 

 exposure to the sun and its facilities for the enrichment of its soil, to achieve some- 

 thing extraordinary in the way of vegetation. To make sure of its end it has en- 

 tered into an alliance ofl"ensive and defensive with Ambrosia trijida, L., the Great 

 Ragweed. The Ragweeds have sole and full possession, and so thickly do they 

 send up their trunks and so loftily do they rear their heads that no other herb can 

 get either sun or soil on their territory. Several years ago, with a companion, I 

 made a reconnoissance among them and found them averaging from twelve to eigh- 



