544 
may be met with. In the inner localities only a finer form, usually only 0.2—0.5 
mm broad or less, is met with, f. fenuior LyNGB., without proliferations. The 
branches are alternate, divaricate, curved, with a varying number of branchlets. 
The loose forms nearly always occur in water of lower salinity than that in 
which the typical species occurs; they often vegetate in water with a salinity of 
20 °/oo or less. 
Localities. «: Ph. epiph. f. Bangii typica. 8: Ph. epiph. Bangii f. tenuior. — Kn: Frydenstrand by 
Frederikshavn, «. = Ke: FD, east of Læsø 9.5—11 m. — Km: ZC, 4—5 m, XE 2—4m and KF, 6.5 m 
south of Læsø, alla; XF at Læsø Rende, 8.5m, & and a little 8; entrance to Mariager Fjord, Th. 
Mortensen, 8; BH, off Gerrild Klint, 7.5 m, «. — Sa: PN, Kalo Vig, 5.5—11 m, 8; PL, Wulffs Flak, 
9.5—13 m, «; PK, Norsminde Flak, 5.5 m, 8; MQ, south of Paludans Flak, 11.3 m, $; aV, east of Ende- 
lave, 10 m, «; aX south of Endelave 4.5 m, «; aH Lillegrund at Fyns Hoved, 7,5 m, «; aY, aZ and 
NZ, north coast of Fyn, & and 3; Hofmansgave, washed ashore, « and $. (Hofman Bang, Lyngbye, 
Car. Rosenberg a. 0.); NY, entrance to Odense Fjord, 6.5 m, «; Einsidelsborg (Car. Rosenberg); 
GC, east of Æbelø, 13 m, «; DJ, east of belo, «; Æbelø (Lyngbye). — Lb: Off Bjornsknude, 9.5 m, «; 
AL, Baaring Vig, 7.5 m, «; Flækojet « (Biol. Station); DE, Thoro Rev. 5.5 m. 8; DB, Lille Grund, 7.5 m; 
dH, east of Hesteskoen, 15 m, 8 — Sb: Off Refsnæs, 19 m (C. H. Ostenfeld) 8; Lerchenborg Strand, 
washed ashore, 3 (O. Smith); GS, Lysegrunde, 3; LN, Stavreshoved, 8; GQ, Slettings Grund, 7,5 m, 8; NU, 
off Strandskov at Bovense, 13 m, 8; AB, off Teglværkskov by Nyborg, 7.5 m, 8; cL, NE of Sprogø, 
25—27 m, 8; BS, Palegrund, 7.5 m, 8; VB Omø Tofte, 5.5 m, 8; fP, east of Hov lighthouse, 5.5 m, ß; 
DP and UJ at Onse Vig, 7 m, 8; DQ, west of Nakskov Fjord, 5.5 m, 8. — Bw: cF, south of Kegnæs, 
8.5 m, 8; dO, north side of Bredgrund, 5 m, 2; dP, east side of the same, 7.5 m, 8; fT, south side ot 
Ærø, 7 m; off Drejet, 7 m, B; UQ, off Tillitse, 12 m, 3. 
4. Phyllophora Traillii Holmes et Batters. 
Traill, Monograph of the Alge of Firth of Forth. Proceedings of the Roy. Phys. Soc. of Edinburgh 
1882, p. 13, sine descr., Holmes et Batters, A revised list of the Brit. Mar. Algae, Ann. of Botany 
Vol. V, 1890, p. 89, sine descr.; Batters, Mar. Algæ of Berwick 1899, p. 114, plate XI, figs, 6—11; 
id., A Catalogue of the Brit. Mar. Alg. 1902, p. 66. 
At Fladen in the Eastern Kattegat I found in October 1922 at 17 metres’ depth 
a small number of specimens of a little Alga which I think must be referred to 
the imperfectly known species Phyllophora Trailli. They were found growing on 
stones together with young plants of Chetomorpha Melagonium and Chondrus crispus 
and were only 3—6 mm high (fig. 529). They agree with Batters’ description and 
drawings, and some of them bear small marginal leaflets which appear dark under 
the microscope. The fronds are feebly branched, laterally at the base or by dicho- 
tomy or they are still entire. They are contracted at the base in a short cylindrical 
stipe and issue from a well developed attachment disc. Owing to the very small 
number of specimens I cannot ascertain whether the leaflets contain procarps. 
According to BATTERS the cystocarps, which are entirely immersed in the leaflets, 
ripen in January and February at the British coasts. I have had for comparison 
original specimens from E. M. HoruEs collected at Cumbrae, Scotland in March and 
April; they were small and sterile, without marginal leaflets. 
In the harbour of Østerby on the north coast of Læsø in the Northern Kattegat 
