70 Rhodora [April 



ish, sometimes acute but with us more often obtuse or rounded at 



the apex.— Synop. Fl. Germ. 618 (1837). P. littorale, Link, Enum. 



Hort. Berol. i. 385 (1821); Meisn. in DC. Prodr. xiv. 98 ; Small, 



Monog. Gen. Polyg. 102, t. 38. The place of publication of the 



species is traditionally but incorrectly cited as Schrader's Journ. i. 



54 (1799), although the name littorale appears for the first time as 



P. maritimum* littorale, Link in Pers. Syn. i. 439 (1805).— Sea 



coast. New Brunswick, Carleton, 7 Aug. 1877, /. Fowler. 



New Hampshire, New Castle, on sandy wayside near beach, 19 



Sept. 1901, IV. P. Rich. Massachusetts: Revere, Oak Island, 29 



July, 1900, IV. P. Rich; South Boston, waste land, 20 Aug. 1899, 



IV. P. Rich; Scituate, gravel near beach, 8 Sept. 1901, IV. P. Rich. 



Rhode Island, Providence, on cove land, 18 Sept. 1899,/.^. Collins - 



Connecticut: H. S. Clark, no. 8; Black Rock, 5 Aug. 1898, E. H. 



Eames. Also southward and in the interior, but less well marked. 



Repeated efforts to substantiate in a suite of specimens the very 



different characters adduced for the distinction of P. littorale by 



Koch (Linnaea, xxii. 204), Meisner (I.e.), and Small (1. c), have 



failed to show them constant as distinctions or even concomitant as 



variables. Plate 35, fig. 8. 



Var. vegetum, Ledeb. Luxuriant, more or less erect, lighter green 

 than the typical form : leaves large, elliptical, 3 to 4 cm. in length, 

 somewhat petioled, the margins crisped.— Fl. Ross. iii. 532 (1849); 

 Meisn. fl. c.) 97.— Rich soil, especially in shade. Newfoundland, 

 Quiddy Viddy, 2 Aug. 1894, Robinson &> von Schrenk. Maine, 

 Yarmouth on salt flats, 26 July, 1901, A. B. Chamberlain. Vermont, 

 Manchester, 4 July, 1898, M. A. Day. This variety seems scarcely 

 more than a rich-soil form; it is doubtless widely distributed in 

 America. (Eu.) Plate 35, fig. 6. 



The opposite tendency is shown by Var. angustissimum, Meisn. 

 1. c. {P. ne^lectum, Bess. Enum. Fl. Volh. 45, 182 1: P. aviculare, var. 

 MgUctum, Aachcrs. Fl. Brandenb. 51, 1864; and ? P. aviculare, var. 

 laxum, Ledeb. 1. c.) with leaves very narrowly lanceolate or linear. 

 This narrow-leaved form is by no means rare in America but it is 

 poorly marked and shows no constancy in the length of the leaves, 

 degree of diffuseness, etc. Plate 35, HO. 7. 



= = Filiform pedicels exserted ; flowers equalling or exceeding their sub- 

 tending bracts and together forming rather definite terminal racemes. 



P. arenarium, Waldst. & Kit. Decumbent, branched from the 

 base : leaves lance-linear, thickish and veiny : flowers campanulate : 

 calyx lobes 5, oval, green with thin petaloid red margins.— PI. Rar. 

 Hung. i. 69, 6. 67 (1802).— Rhode Island, Providence, on cove 

 land, 5 July, 1892, IV. IV. Bailey &> J. P. Collins. A waif from the 

 Mediterranean Region to be recognized by its narrow slightly rigid 

 leaves, much reduced bracts, and small but attractive flowers in 

 terminal almost naked racemes. 



