Bef Ue Se Seta Ol ba ide orent 
1911] Fernald,— Lost Carices of eastern Massachusetts 247 
limosa in a pond (presumably at Tewksbury) gives an important 
clue, for Tewksbury was one of B. D. Greene’s great collecting grounds 
and he made its ponds and those of Andover famous. There he col- 
lected the types of Juncus militaris and Utricularia resupinata; and 
on the sandy and peaty margin of Round Pond are found many iso- 
lated northern colonies of Coastal Plain species: Sagittaria Engel- 
manmiana, Fuirena squarrosa, Xyris Smalliana, etc. Round Pond has 
therefore been much visited and always furnishes good botanizing, 
even at the present time occasionally giving us new records. But the 
other pond of Tewksbury, Long Pond, is apparently little visited 
by botanists because its western side is bordered by an extensive 
quaking bog so deep and wet as to fatigue or drive away all but the 
most venturesome. Here, however, is the only known station in 
Middlesex County for Carex limosa! A specimen collected by B. D. 
Greene himself and labeled merely “Tewksbury” is in the Gray 
Herbarium, but material collected by William Boott on July 8, 1863 
is marked “West side of Long Pond.” No other station is cited in 
the Middlesex Flora, and it is obviously in this quaking bog or in the 
western margin of Long Pond, that we must seek the long-lost C. 
Hornschuchiana var. laurentiana. On June 17 last Mr. F. F. Forbes 
and the writer made a first attempt at rediscovery; but we were much 
too early, though we found young C. limosa in abundance. The 
traveling is difficult, consisting of waist-deep wallowing and tumbling, 
but by mid-July, when the prize Carex of the bog should be sought, 
traveling there may prove less formidable. At any rate the search 
is worth making and no effort should be spared to prove whether or 
not the almost forgotten plant still persists at Long Pond. 
In view of the established occurrence of Carex Hornschuchiana, 
var. laurentiana in Newfoundland and its great rarity on our continent 
(found only at one of the ponds in Tewksbury) it is noteworthy that 
Haggett’s Pond in Andover (lying just to the north of Long Pond) 
furnishes a case of somewhat similar distribution. By -all means 
the most generally distributed grass upon Newfoundland is Cala- 
magrostis Pickeringii and, though it is found locally upon our granitic 
mountains, it is known as a coastwise species only from Newfoundland, 
Cape Breton Island, and at a restricted station near the northern end 
of Haggett's Pond in Andover, a famous station discovered by Mr. 
John Robinson in 1879. It seems probable, then, that Carex Horn- 
schuchiana, var. laurentiana like Calamagrostis Pickeringii, a plant 
