120 
same variations of growth shown in Fig. 9 of my notes (Bulletin, 
p. 63). The figure of his aphyllous form would indicate an abortion 
of the leaves, there being a distinction made between stem and 
peduncle in the figure. In my specimen this was not so. The 
various forms were not accounted for by abortion of leaves — the oc- 
currence of three-leaved forms would preclude that — but by the 
flower not being preceded by the same number of leaves, these vary- 
ing from 3 to o. Perhaps Prof. Porter's aphyllous form indicates 
that the leaves were potentially present. 
Aug. F. Foerste. 
Prolification in Phleum.— While driving in New Hampshire early 
in October I found a curious proliferous specimen oi Phletmi pratense. 
The spike was fully an inch thick, with tufts of spreading green leaves. 
A week later, in Massachusetts, I found a second specimen, with the 
same development, and a few days afterwards, in Connecticut, still 
another. 
Annie Trumbull Slosson. 
Note on Sphserella polystigma, E. & E. (Bull. Torr. Bot. 
Club Vol. x., p. 127.) — This species has also been found at Newfield, 
N. J., on fallen leaves of Quercus coccinea^ and a recent examination 
of these specimens, which were collected in the summer of 1883, shows 
that the endochrome of the sporidia becomes at length divided close 
to the narrow end of the spore, forming a pseudo-septum. This 
character was not noticed in the fresh specimens, but possibly may 
have been overlooked, though it is not by any means unusual for 
spores which are at first continuous to finally become septate, and 
especially so in those which are at first nucleate; so that two nuclei 
indicate the probable appearance of a septum; three nuclei of two 
septa; four, of three, and so on; a single septum appearing between 
the adjacent nuclei ; and this fact is not to be lost sight of m 
estimating the value of genera founded on the septation of the spores. 
The measurement of the sporidia (10-13x3.5-4//) was accident- 
ally omitted. 
J. B. Ellis 
Wanted. — Any one having a perfect copy of Michaux's Sylva 
may hear of a purchaser upon stating terms to the editor of the 
Bulletin. 
Errata.— In Dr. Britton's article, in the August number of the 
Bulletin, the following errata occur, and should be corrected 
follows: 
as 
Under Cyperus Buckleyi^ for *'spikelets 15 lines wide " read i-S 
line wide." Under Cyperus articulattis,'' spikelets 1-15 inches long 
read**i-i.5 inch long," and for " showing " read " formipg. ^" 
page 86, bottom line, and on page 87, line 20, read Nees for Rees. 
On page 98, line 21, for '' mode " read " made," and in Ime 34 
for 1885 read 1884; on page loo, lines 30 and 31, the phrase begin- 
ning with '*but'' and ending with ''Empetrum'' should be enclose^ 
in parenthesis. On page 105, line 4 from bottom, for 1857 read i2>37' 
