378 
Sexual reproduction seems to take place much more rarely than the asexual. An- 
theridia have been met with only in a few places (Su, Bw and Bb, July, August); 
they covered completely globular joints. 
Cystocarps have only been observed in one 
place (Bh, August); they were subtended 
by up to six involucral ramuli. A spec- 
imen collected by dr. O. PAULSEN in Krie- 
gers Flak (Bm) in 15 meters depth, showed 
witches’ broom-like bushes of dark-red, 
much branched, short straight branches with 
short articles and with monopodial, lateral 
Fig. 316. branching. The species has only been met 
Ceramium strictum, from Bornholm. 4, upper end of within April to October. 
shoot with hairs. B, upper end of shock of female Baron Seo 
plant. pe procarpial branch. 390: 1. 
occurs in all the Danish 
waters within Skagen, most frequently in the inner waters, from 
low-water mark to c. 10 meters depth, more rarely deeper; it 
has been met with in the greatest depth at Bornholm (29 m). 
Dr. Petersen distinguishes forma vera and f. stricto-tenuissima, 
characterised by more divaricate branches and more elegant habit. 
F. vera H. Ptrsn. 
Localities. Lf: 5 localities. Oddesund, S. side of Jegindø Tap. — Kn: 
FF, Læsø Trindel, 15 m (?). — Ke: East end of Anholt; IC, Store Middelgrund, 
10,5 m: about same place (Dana St. 2925 C. A. J.); Gilleleje, 1—5 m. — Ks: 
EH, West of Lynæs; GG, Sjællands Rev. — Sa: GE near Sejerø; PG, west of 
Hatter Rev: Begtrup Vig, stony reef. — Lb: Off Ivernæs; Aarosund; DB, 
Lillegrund. — Sf: CU: CV. — Sb: LK, Elefantgrund; Kerteminde; Nyborg: 
UF, N. of Langeland; Snøde Rev; Smerstakken; Nakskov Fjord (Th. Mortensen). 
Fig. 317. | 
3 Ceramium strictum, from { 
— Sm: CL, Raago Sund (+); CO: Holsteinborg Nor; Karebæk Fjord (War- sen Te, Get ! 
ming); Petersværft; Grønsund, 4 m.— Su: Off Aalsgaarde (3, Aug.) (H. E. P.); part of the wall of the 
N. of Julebækshusene; the point at Hvidøre; Copenhagen; SA, SB, Flinteren-  internodial cell was more 
den. — Bw: bV, N.E. of Kobbel Skov; bZ and dO, S. of Als; DU, off Dimes (deeply stained by hem- MA 
atoxylin than the lower- | 
Odde: KY, Femerbelt, 12,5 m; KZ, off Kramnisse; Gedser Rev, 8,5 m, (3, July). most part; the latter was 
— Bm: KS, E. of Falster; VH, S. of Moen; Præstø Fjord; Faxe Ladeplads; off probably younger. 230:1. | 
Mandehoved, Stevns; QF, S. of Saltholm; QH, Falsterbo Rev; bP. Kriegers h 
Flak (0. Paulsen). — Bb: N.W. of Sandvig on rock: Allinge (3 ©); Davids Banke, 15—29 m; YF, 
within Arnager Rev; YE, off Øleaa; near Salthammer Rev (+, p). 
F. stricto-tenuissima H. Ptrsn. 
New localities. Sa: Hofmansgave (Hofm. Bang). — Sb: DN, Vengeance Grund, 12 m. 
4. Ceramium eimbrieum Henn. Petersen n. sp. 
C. interdum repens, subdichotome ramosum, apicibus rectis, longis, sæpe in- 
æqualibus: zonis semper distantibus, marginibus non crescentibus, e cellulis paueis 
