415 
92. E. tomentosoides Farl., New or imperf. known Algae of U.S., 
reprint from Bull. Torr. Bot. Club, Vol. XVI, 1889, p. 11, pi. 87, fig. 4; 
Rosenv., Gronl. Havalg., p. 890; Gran, En norsk form af Ectocarpus 
tomentosoides Farlow; Kuckuck, Ueber Polymorphic bei einigen 
Phaeosporeen (Festschrift fur Schwendener). 
Besides basal plurilocular sporangia, such as those figured by 
Rosenvinge and Kuckuck, 1. c., I have also come across basal 
unilocular sporangia, as I cannot doubt that the few I found must 
be regarded as such. These dehisced at their apex, and were 
about 40 g long and about 12 g broad. 
Grows as an endophyte in the stem and lamina of Laminaria 
hyperborea, digitata and saccharina covering them with a short, 
fine, matted growth. 
Specimens bearing plurilocular sporangia were met with from 
March to June. It undoubtedly attains to its highest development 
late in winter, i. e. March to April, as in a collection consisting of 
fragments of Laminaria gathered by Jonsson in March near 
Thorsliavn large quantities of vigorously developed plants were 
met with which exactly agreed with Kuckuck’s fig. 6 (1. c.), while 
later in the year it only occurred in small quantities and in poorly 
developed specimens; its occurrence as an early spring plant agrees 
also with Gran and Kuckuck’s report. In Greenland, on the 
other hand, it has been found as late as August. 
In a glass vessel containing Rhodymenia palmata , which I had 
gathered near Thorshavn for the sake of its different epiphytes, I 
found Ect. tomentosoides also amongst Myrionema globosum and others, 
but whether this alga really grows on Rhodymenia palmata or not 
I have not been able to ascertain; at any rate I did not succeed in 
finding endophytic filaments, but it is just possible that these typical 
filaments of Ect. tomentosoides were allied to the plant I have called 
with a query Myrionema globosum (cfr. 421); and in referring to my 
description of the latter for further particulars I will here only add 
that it bore a striking resemblance to Ect. tomentosoides. 
This species, which doubtless in early spring occurs as a very 
common endophyte in Laminaria- species, has hitherto been found in the 
following places: — Ost.: Ejde (!), Fuglefjord (!); Str.: Thorshavn (H.J., !); 
Syd.: Trangisvaag (Ostenfeld). 
93. E. lucifugus Kuck., Ueber zwei hohlenbewohnende Phaeo¬ 
sporeen (Beitrage zur Kenntnis der Meeresalgen, 4, Kiel und Leipzig 
1897). 
