NEW OR CRITICAL BRITISH ALO^E. 25 
identical with the variety seriatus, Rke., of A. foecundus , while 
Magnus’s plant was unknown until the appearance of his 
description. In that case, unless the genus Phycocelis of Strom- 
felt be retained, the plant described by Magnus must receive 
a new specific name. No. 127. — Ascopyllum Machaii , Holm, 
et Batt., var. Robertsoni, Batt. I am now of opinion that it 
would be better to raise this variety to specific rank, as it appears 
to be separated from A. Machaii by more essential characteristics 
than those which separate A. Machaii itself from A. nodosum. — No. 
130. Chordavia divaricata. With the exception of the Irish 
specimens described by Harvey and those “ found floating in 
Plymouth Harbour by Mr. F. Pascoe ” (Johnstone and Croall., 
“Brit. Sea-weeds,” p. 110.), I know of no specimens of this species 
having been found on the shores of these Islands previous to Mr. 
Holmes’ “ find ” at Fairlie. — 133. Ectocarpus crinitus , Carm. 
Mr. Holmes would keep this species distinct from E. pusillus , 
Harv. ( Ahinetospora pusilla, Born.), No. 136, as apart from the 
difference in habit between them the two plants grow in very 
different situations. E. crinitus, Mr. Holmes informs me, “ was 
found growing in large masses covering a space of a square yard 
or more near high-water mark, over Gladophora rupestris and 
Enteromorphce , and below Rivularia Biasolettiana , on the perpen- 
dicular face of a rock in the shade, over which moisture trickled, 
while E. jmsillus was found in very shady pools forming isolated 
small tufts.” — 135. Ectocarpus ovatus , Kjellm. Although the 
specimens of this species contained in the fasciculus are small, 
they are amply sufficient for identification. The plant appears to 
be very rare, as up to the present only two specimens have been 
found, one at Weymouth and one at Ilfracombe. The specimens are 
very difficult to lay out, as the clustered fruits render the threads 
liable to catch in one another. — No. 137. Ectocarpus Sandrianus , 
Zan. The first British specimens of this species were found by 
Mr. F. W. Smith growing on a specimen of Desmarestia aculeata 
thrown upon the beach at Falmouth, and were communicated by 
him to Mr. Holmes. Since then the species has been found by Mr. 
and Mrs. Holmes at Studland, Ilfracombe, and Taunton. — No. 114. 
Monottroma Blytii , Wittr. This species was first found on ©ur 
shores by Mr. Holmes in 1890 at Tayport, subsequently by myself 
at Cumbrae, and lately by Mr. J. T. Neave at Deal. — No. 149. 
Schizothrix lardacea , Gom. Although M. Gomont himself, we 
are informed, identified the specimens which are here distributed, 
he makes no mention of the plant occurring in England in his 
“ Monographic des Oscillariees.” — No. 150. This is Myriactis 
Areschougii , Batt. ; the generic name is wrongly given as Streblo- 
nema on the label. The fasciculus contains several other species 
of interest, and Mr. Holmes is certainly to be congratulated on 
having got together a most interesting and useful set of specimens. 
Phycological Memoirs. Edited by Geo. Murray, F. R.S.E., 
F.L.S. 
