Fig. 469. 
Chondrus crispus, f. densa (ciliata Suhr). Shallow 
water, Frederikshavn, July. With tetrasporangial 
sori. Photo, nat. size. 
506 
Sracku., LYNGBYE). Similar specimens have 
been met with in shallow, protected water 
at Frederikshavn (fig. 469). 
B. The specimens growingatgreater 
depths, more than 3 metres, are less variable 
than those growing near low-water mark. 
They are proportionally narrow, being usually 
at most 2—4 mm broad, and fairly long, 
up to 16 cm. Proliferations do not usually 
oceur. The colour is more reddish. 
F. @qualis Lynes., Tent. Tab. 5 B, 
Lamour., figs. 12, 16, 22, ARESCHOUG Exsicc. 
no. 156. Figs. 458, 463. Most of the specimens 
from deeper water may be referred to this 
form, characterized by the frond having al- 
most a uniform breadth. The specimens from 
the greatest depths (13—20 m) are thinner 
but not otherwise different; they might be 
named f. membranacea. 
F. polychotoma KJELLMAN, KyLiN 1907, 
p- 123, Lamouroux tab. XII, figs. 31, 32. This 
form is represented by two year old fronds, 
with numerous branches in the upper part of the frond. Two systems of fan- 
shaped ramifications from two consecutive years may be found (fig. 459). 
C. Specimens lying loose on the 
bottom. Fronds disengaged from the attach- 
ment disc may maintain life in the loose 
condition for a shorter or longer time. Such 
specimens may keep the original form for 
some time (usually f. equalis); but upon conti- 
nued life in a loose condition the shape of 
the frond becomes altered. The specimens that 
have lived for some length of time lying loose on 
the bottom and are carried along by the currents 
often show a swelling at the lower end where 
they have been loosened, like a feeble callus 
disc (fig. 470). The loose specimens are always 
sterile. They are only met with in sheltered 
localities in the inner waters. 
F. incurvata LYNG8., Tent. p.16; Chondrus 
incurvatus KÜTZING, Sp. Alg. p. 735, Phyc. gener. 
p. 399, Taf. 73 IL, Tab. phyc. Bd.17, tab. 50 ec, d. 
r 
Fig. 470. 
Chondrus crispus, f. incurvata. Off Vesterskovs 
Flak, north of Falster, 7,5 m. Photo, nat. size. 
