110 Rhodora [May 



government system) and in order to catch the last train to Yarmouth 

 were forced most reluctantly to start on the three- to four-mile tramp 

 to Arcadia station, or, rather, walking match with Pease, the champ- 

 ion of White Mountain trampers, as pace-setter. 



The Tusket party, of course, brought in Ilex glabra, a shrub the 

 rarity of which we were beginning to doubt, and Bissell maintained 

 that the White-fringed Orchis, Habenaria bhphari glottis of coastal 

 plain peats, was growing at Tusket on the ordinary, dry railroad 

 embankment. This was a rather "jarring" assertion to those of us 

 who knew the plant southward only in wet sands or bogs, but we 

 afterward abundantly verified it, for from now until mid-August we 

 constantly saw this beautiful plant with milk-white racemes in the 

 greatest profusion, not only on wet, boggy barrens but in ordinary 

 dry pastures, spruce thickets and dry Polytricfnim-lydrrens. 



Long and Linder, hoping to add to the glories of the tidal flats of 

 the Tusket, had spent some time on the muddy banks of the river 

 which are here decidedly more saline than farther up at Tusket 

 Falls, the rank grasses and sedges being chiefly Spariina alterniflora 

 Loisel, 1 and Scirpus acutw, with Scirpus Ofncyi, Eleockaris rostcllata 

 and Drsclumipsia cacs}ntosa at the brackish upper border. The mud 

 was too saline for a great variety of species but they had their reward 

 in Zannichellia palustris, var. major, 2 Limosclla subulata Ives 3 and, 

 best of all, that most amazing of all our Umbcllifcrac, Lilacopsis 

 lineata, always exciting wonder by its unique habit and habitat; the 



1 See Fernald, Rhodoha, xviii. 178 (1916). 



» In 1918 it was pointed out (Rhodoha, xx. 100-164), that in America typical 

 European Limosella aquatica L., although known at the Straits of Belle Isle, is mostly 

 confined to the western sections of the continent, the plant of the Atlantic coast 

 being L. subulata Ives. Similarly, the typical European Zannichellia palustris L. 

 seems to occur in North America only in the western half of the continent, from 

 Saskatchewan to Iowa, Missouri and Texas, thence west to the Pacific and south 

 into Mexico, the plant with sessile or subsessile fruits, the body of the achene 2-2.5 

 mm. long. The plant of tidal or brackish pools and shores all the way from Florida 

 to Newfoundland is var. major (Boenningh.) Koch, this plant having the fruit def- 

 initely pedicelled and rather long-beaked, its body 2.5-3.5 mm. long. It may have 

 either free-swimming or closely repent stems, but throughout its range along our 

 Atlantic coast it has the fruit-characters remarkably constant. The bibliography 

 of our plant seems to be: 



Z. palustris L., var. major (Boenningh.) Koch, Syn. Deutsch. und Schweiz. 

 Fl. 679 (1837). Z. major Boenningh. ex Keichenb. in Moessler, Handb. ed. 2, iii. 

 1591 (1829); Reichenb. Ic. Bot. Crit. viii. 24, fig. 1005 (1830) and Ic. Fl. Germ. 

 Helv. vii. 10, t. 16, fig. 24 (1845). Z. intermedia Torr. Compend. 330 (1826). Z. 

 palustris Race Z. dentata, B- major (Boenningh.) Rouy, Fl. Fr. xiii. 298 (1912). 



•See Fernald, Rhodora, xx. 160-164 (1918); also Pennell, Torreya, xix. 30-32 

 (1919). 



