J 2 Rhodora [April 



Hitchcock, no. 1095 at ^ east in part. Nebraska: Rock County, 

 Clements, no. 287b; Cody, Sherry County,/. M. Bates, no. 568 (dis- 

 tributed as P. cantpornm); Hooker County, Rydberg, no. 1579, and 

 no. 1763 (distributed as P. camporum), also no. 177 1 (distributed as 

 P. Morale). Minnesota: Pipestone, Aug. 1895, &?* Mettzel. North 

 Dakota, Leeds, J. Lunnell, nos. 62, 63. Wyoming, Blue Grass 

 Creek, A. Nelson, no. 364 (distributed as P. erect itm). Oregon, Hall, 

 no. 448. Washington, Bingen, Suksdorf, no. 1406. Plate 35, eigs. 



i-3- 



Many more specimens might be cited but these will be sufficient 

 to illustrate the species. It is noteworthy that of this typical form 

 only one specimen (Mr. Rich's plant from Truro on Cape Cod) 

 has been seen east of western Pennsylvania. Other eastern mate- 

 rial referred here has on examination invariably proved to be P. 

 prolificum or luxuriant and diffuse P. avkulare, or the following 

 readily distinguishable color form. 



Forma atlanticum, n. f. Calyce nullo modo flavescente, lobis 5 

 vel 6, exterioribus albo-marginatis plus minusve rubescentibus, inter 

 oribus albidis. — Maine: Cumberland, in a hen yard, 31 Aug. 1901, 

 E. B. Chamberlain \ Old Orchard Beach, 29 Aug. 1898, M. L. 

 Fcmald, no. 2729. Massachusetts: Edgartown, margin of salt 

 marsh, 11 Sept. 190 1, Af. L. Femaltt (type of form); West Fal- 

 mouth, 16 Sept. 1894, J. R. Churchill; North Scituate, on brackish 

 meadow, 6 Sept. 1897, W. P. Rich eV> E. F. Williams; Cambridge, 

 marshes of the Charles River, 4 Aug. 190 1, IF. P. Rich. Rhode 

 Island, Providence, on cove land, 10 July, 1892, J. F. Collins. 

 Connecticut: Milford, on brackish marsh, 28 Aug. 1895, E. H. 

 Eames ; Bridgeport, salt meadow bordering Ash Creek (stems very 

 brittle), 8 Sept. 1901, E. H. Eames. This form, although always 

 recognizable by the color of its flowers, shows no constant morpho- 

 logical difference from the western typical form, which as stated 

 above has been found at one station on Cape Cod. It bears also a 

 very striking resemblance to the true P. Bellardi, All., of the Old 

 World, which scarcely differs save in its more reduced subulate and 

 slightly rigid floral leaves. 



P. Bella rdi. All. Closely like the preceding form, but the upper 

 leaves reduced to very acute short and slightly rigid bracts scarcely 

 or not at all surpassing the flowers in their axils. — Fl. Piedm. ii. 

 205, t. 90, f. 2 (1785). — Of this species, which appears to be frequent 

 and rather widely distributed in Europe and Asia, I have seen only 

 one satisfactory American specimen. That was collected on the 

 South Boston dumping grounds, 3 July, 1879, by E. 6° C. E. Faxon. 

 It was probably a temporarily established waif, as it has not been found 

 during the last twenty years. Plate 35, figs, io-ii. 



+- +- Branches rather sharply 3-4-an^led ; leaves lanceolate to linear, pointed 

 at eacli end, subulate at the apex, of rather firm texture. 



