1913] Norton,— Plants from Islands and Coast of Maine 139 
abundant I. setosa canadensis. After careful search she found one 
plant in fresh flower, rendering the identification with J. prismotica 
certain. This has been presented to the herbarium of the Portland 
Society of Natural History. 
QUERCUS ILICIFOLIA Wang. An additional coast station is near Hall 
Quarry, on Mt. Robinson, Mt. Desert Island. 
ARENARIA PEPLOIDES ROBUSTA Fernald. Marshalls Island, Masons 
Ledge and Three Ledges, Jericho Bay; Ship Island of the Mt. Desert 
Group; Matinicus Seal Island. West of the latter place, it has not 
been reported until Old Orchard (Goodale, 1864) is reached. It occurs 
at Biddeford Pool (Kennedy in herb. N. E. Bot. Cl.) and was found 
at Kittery by the Josselyn Botanical Society in 1905. At Ship Island 
in 1904 it attained superior development forming numerous large 
glistening mats and fruited plentifully. Eastward it is known from 
Jonesport (N. T. Kidder in herb. Gray) and from Roque’s Bluffs." 
Harvey and Briggs recorded it from Passamaquoddy Bay;? their 
station may or may not have been in Maine. Strictly local. 
ARENARIA GROENLANDICA (Retz.) Spreng. Collected at Oceanville, 
Deer Isl., July 3, 1903. 
CERASTIUM ARVENSE L. Common and often abundant on the 
outer fringe of Islands from the Duck Islands to Cape Elizabeth, 
forming large mats to the exclusion of other vegetation. 
RANUNCULUS LAXICAULIS (T. & G.) Darby. July 23 to 26, 1904, 
a colony of small size was found at South Deer Isle, at a muddy pool, 
resorted to by cattle as a drinking place. 
RANUNCULUS PENNSYLVANICUS L.f. "Though not here regarded as 
a coastal plant, it practically reaches sea level at the junction of the 
Presumpscot River with tide water, and is not rare along the valley of 
the Presumpscot, considerably west and slightly south of Brunswick, 
its southwesternmost recorded station in the state.’ Collected at 
Cutler. 
SISYMBRIUM INCISUM Engelm. Common by roadsides at Bar Har- 
bor, July 13, 1911. 
ARABIS DRUMMONDI Gray. Crow Nubble at the eastern end of 
Bradburys Island, Penobscot Bay, July 17, 1903. Having poor 
facilities for preserving specimens, but one was taken. The plants 
1 1902 Moulton, Ruopora, 4: 189. 
? 1893 Bull. Me. State Coll. Lab. Nat. Hist. 1: No. 2, pt. 2, 6. 
3 1911, Fernald, Ruopona 18: 181. 
