141 
J uncus compressus Jacq. (1) Near Pensford, N. Somerset. 
Growing thickly and for a considerable distance by a grassy 
path through meadow of mowing grass not yet mown (July 
21, 1931). — H. S. T. Yes. — E. Drabble. (2) A good clump, 
20 inches high, Blagdon Reservoir, N. Somerset, Oct. 10, 
1931. It is rare in Somerset. — H. S. Thompson. 
J uncus effusus x inflexus. By a pond (with both parents) 
on Earlswood Common, Surrey, Aug. 1, 1931. — E. C. Wallace. 
Yes. The striation of the stem is distinct, and the pith is not 
chambered but continuous. The top of the capsule is inter- 
mediate in character between that of effusus and that of 
inflexus. The basal sheaths have partly dried of a duller 
colour than in some forms of the hybrid, and are more like 
those of effusus, although showing in places the dark shining 
colour of those of inflexus. Was Mr. Wallace able to ascertain 
the number of stamens, and the form of the anthers ? I 
believe that these hybrids cannot all be brought under the 
description of J . diffusus Hoppe. — J. E. Little. 
J uncus bulbosus L. (viviparous state). Clay pit by roadside, 
between Cornwood and Cadover, S. Devon, v.c. 3, Sept. 10, 
1931. — Coll. R. H. Goode. Comm. G. Goode. J. bulbosus var. 
uliginosus Fries ; this variety is often “ viviparous.” — - 
E. Drabble. 
Sparganium simplex Huds. (Fruits). New Forest, Hants., 
Sept. 20, 1931. — G. M. Ash. Comm. J. E. Little. Correct. — 
J. Fraser. 
Wolffiia arrhiza Winim. Small pond at North Stoke, 
West Sussex, June 22, 1931. — E. C. Wallace. Wolffia arrhiza, 
Lemna minor and I,, polyrrhiza in my packet. — E. Drabble. 
Potaniogeton alpinus Balb. var. Palmeri Druce. From last 
year’s station in the canal at Odiham, North Hampshire, but 
with the addition of fruits which are useful in showing that 
this plant has no affinities with P. praelongus as was once 
believed. July 18, 1931. — E. C. AVallace. This variety is 
queried in the L. C. list as alpinus X praelongus, but subse- 
quently Mr. Ar. Bennett gave it as a variety of P. alpinus. 
I have seen all the gatherings of this variety which have been 
distributed (and many others) but have failed to find any 
definite evidence of praelongus. The entire absence of minute 
denticulations even on the jmungest and most immature 
