389 
thick. The cells are usually 11/,—3 times as long as broad; 
they contain one nucleus and several more or less elongated 
disc-shaped or ribbon-shaped chromatophores (fig. 326). 
The sporangia are usually, as figured by KJELLMAN (N. I. 
Alsfl. 1883, fig. 6—7), terminal on short lateral branches mostly C « 
given off from the upper part of the otherwise unbranched erect CAD 
filaments. But they may also be terminal on these filaments or, ici 
more rarely, terminal on longer lateral branches. The spor- DE 
Rhodochorton penicilliforme. 
angiferous branchlets may be branched; KJELLMAN has figured  pasal layer showing cell- 
such a case (I. c. fig. 7). In specimens from the Little Belt AOQEL LUE 
near Feng Kalv (no. 1365) I found several cases of branched 
branchlets, the branchlets of the second order terminating also with a sporangium 
(fig. 327). The sporangia are first divided by a transversal wall and afterwards by 
two vertical ones which are never in the same plain. The sporangia are (25—) 
29—32 (—35) u 
= long, (21—) 23— 
25 (—27) u broad. 
After evacuation 
of the spores a 
new sporangium 
may arise within 
the empty spor- 
angial wall by 
budding from the 
next cell (fig. 326). 
In the nam- 
ed specimens from 
the Little Belt (no. 
1365), growing on 
Fig. 326. Phyllophora mem- 
pee ror Dent: branifolia gather- 
cilliforme. Young 5 
sporangium growing ed in 13 meters’ 
out within the wall å 
of an emptied spor- depth In June 
angium. 625 : 1. 1891, antheridia 
were found besides 
tetrasporangia. They occurred in 
small clusters in the same specimens 
which bore tetrasporangia and in the 
neighbourhood of these, sometimes 
even on the same lateral branch. 
The antheridial clusters are usually 
lateral, more rarely terminal on the 
Fig. 327. 
Rhodochorton penicilliforme. Upper ends of upright filaments with 
tetrasporangia and antheridia. B 230 :1, the others $90: 1. 
D. K. D. Vidensk. Selsk. Skr., 7. Række, naturvidensk. og mathem. Afd. VIL. 3. 50 
