92 Rhodora [May 
in cool sheltered rock-pockets, thus suggesting Primula farinosa of 
more northern regions); Bidens colpophila Fernald & St. John; and 
B. Eatoni Fernald, var. kennebecensis Fernald (see Ruopora, xix. 76). 
From this list of some of the characteristic associates of C. Longii 
at the type locality it is evident not only that the plant has associated 
itself with a peculiarly local series of estuary species, but that search 
is likely to reveal it at other estuaries where some of these species occur. 
GRAY HERBARIUM. 
Note on NurnarRr.— In Ruopora xviii. 90, 1916, the Local Flora 
Committee reported Nymphaea advena Ait. and N. variegata (Engelm.) 
G. S. Miller as both occurring within the Boston district. The differ- 
ences between these species have been clearly brought out by Miller & 
Standley (Cont. U. S. National Herb. xvi. 3) and further discussed 
by Fernald & St. John (RHopora xvi. 137-141, 1914). In the latter 
article the validity of the specific name variegata is proved. 
The consideration of these descriptions shows true N. advena to be 
an estuarine plant. It has erect leaves usually borne above the surface 
of the water, with lobes mostly triangular, and diverging about 80°. 
The leaves are 13 to 33 cm. long and 14 to 25 cm. broad; sinus 4.5 to 
10 cm. deep. An examination of the specimens in the Club Herba- 
rium from the Boston District shows none of this plant, while N. 
variegata is common. 
Prof. Conard’s careful researches on nomenclature (RHODORA xviii. 
161-4) show the validity of the generic name Nuphar for these yellow 
cow-lilies. The plant found in our region should therefore be called 
Nuphar variegatum Engelm.— CLARENCE H. Know ton, for the Local 
Flora Committee. 
The twenty-third annual FIELD MEETING OF THE JOSSELYN 
BOTANICAL Socrety or Marne will be held at Greenville Junction, 
July 31, 1917, with headquarters at the Piscataquis Exchange. An- 
nouncements will be sent to members and to others on request two 
weeks previous to the meeting. — Dana W. FELLOWS, Secretary, Port- 
land, Maine. 
Vol. 19, no. 220, including pages 61 to 76 and a portrait plate, was issued 
17 April, 1917. 
