BOTANICAL GAZETTE. 1 87 



Notes on Indiana Plants. 



The following additional plants, or localities for plants already 

 recorded for Indiana, may be given, with notes on the more inter- 

 esting cases. 



At Otis, LaPorte, Co., Geum rivale, L. and Viburnum Opu- 

 lus, L. 



At Pine Station, Lake Co., Gentiana detonsa, Pries. Good 

 typical forms, readily distinguished from all ordinary forms of G. 

 crinita. From all my experience with the two species growing in 

 this locality, it is hard to tell to which of the two certain individ- 

 uals that may be found should be assigned. Those at Pine Station 

 are the first that really satisfied me as genuine specimens of the 

 G. detonsa of the books, though often finding narrow-leaved plants 

 with petals that could scarcely be called fringed. 



At Whiting, Lake Co., Utricularia resupinata, Greene. Mar- 

 gins of sandy sloughs, with Eleocharis dispar, nobis. The geo- 

 graphical distribution of this plant, as far as I find in published 

 notices, is as follows: Gray's Manual, "Sandy margins of ponds 

 E. Maine to Rhode Island." In Bulletin of the Torrey Botanical 

 Club, Suffolk Co., Long Island, Herkimer and Lewis Counties in 

 the northern part of New York, and Erie, Penn. In Wheeler 

 and Smith's Catalogue of Michigan Plants, Woodard Lake, Ionia 

 Co. As it is now found at the southern extremity of Lake Michi- 

 gan, it is possible that it has gone further westward. 



In Cedar Lake, Lake Co., (near Crown Point) Potamogeton 

 pusillus, L., and P. pectinatKS, L. By its margin or in pools or 

 in sluggish streams near by, P. pauciflorus, Pursh. Leaves 5-nerv- 

 ed, 3| inches long; stipules £ to f inch long. A large form, ap- 

 proaching P. Niagarensis, Robbins. 



By the shores of Cedar Lake, Eleocharis palustris, R. Br., yar. 

 calm, Gray. Without bristles, but with a prominent pyramidal 

 tubercle, as in the var. glaucescens. Gray. The description of the 

 yar.calva is. "short tubercle;" specimens sent by Rev. Thomas 

 Morong. collected in Vermont, also have the ttirbercle quite long. 

 In 1881 I gathered plants of this variety along the gravelly banks 

 of St. Mary's River, Sault. Ste. Marie, Ontario, that had the flat- 

 tened tubercle. In some spikes of the Vermont specimens rudi- 

 mentary bristles were found. Perhaps the description of the vari- 

 ety should be limited to the absence of bristles. 



Polygonum articulatum, L. This grows abundantly in the dry 

 sandy grounds around the head of Lake Michigan, but almost al- 

 ways with the flowers white, or the faintest tinge of "rose." Such 

 had been mv experience since first finding it in 1877, until the past 

 season, when plenty of them showed the rose-colored flowers, 

 though the greater part were still the white-flowered kind. I have 

 examined it "every year since first seeing it, and must conclude that 

 the white flowers prevail. The variations are not easily explained. 



