141 
Similar specimens to those just described, but bearing only monosporangia, 
were found attached to Flustra foliacea near the Jutland Reef. To this variety may 
also be referred some small specimens found nearly in the same place as the first 
described, and on the same substratum (no.7109). Their primary erect filaments 
were up to 114 thick but consisted of rather short cells, 1,5—5 diameters long, 
and the fertile branchlets were placed more irregularly, often on the primary fila- 
ments and occurred often in small quantity. As they otherwise agreed with the 
just described f. cimbrica they must be regarded as poorly developed specimens 
belonging to this variety. 
Localities. Ns: aG, near the Jutland Reef, 38 meters, August. — Sk: N.W. of Hirshals, 
13—15 meters, May. 
Kylinia gen. nov. 
Plante minutissimæ, habitu et crescendi modo Chantransiæ. E cellula basali ger- 
minatione spore orta fila libera plus minus ramosa horizontaliter egrediuntur. Mono- 
sporangia in filis terminalia vel lateralia. Antheridia singula vel bina, in cellulis 
androphoricis erectis, multo angustioribus quam cellulis vegetativis, hyalinis, ter- 
minalia. Carpogonia terminalia vel lateralia vel in cellula basali sita, post foecun- 
dationem primo latitudine aucta et longitudinaliter divisa. Carpospora ut videtur 
pauca oblonga vel leviter curvata, in una planitie subflabellatim disposita. 
1. Kylinia rosulata sp. nov. 
Cellula basalis hemispherica fila plura, usque ad 7, horizontaliter emittens. 
Fila simplicia vel plus minus ramosa, ramis plerumque oppositis horizontaliter 
egredientibus. Cellule 4,5—5,5 » crassæ, latitudine vulgo 1,5—2-plo longiores, rarius 
ultra, chromatophorum parietale continentes. Fila nonnunquam pilo hyalino te- 
nuissimo terminata. Sporangia terminalia vel lateralia, ovata, 6,5—8,5 » longa, 
5—5,5 y lata. Cellule androphorice 1—1,5 y late, c. 4—7 y longæ, ad apicem et 
dorsum cellularum vegetativarum vel, ut videtur, carpogoniorum, singulæ rarius 
bine. Antheridia 2—4y longa, 1,5—2,5 lata. Cystocarpia, ut videtur, paucicellu- 
laria, carposporis c. 3. 
This curious little plant has only been met with once in the Northern Kattegat 
where it was found growing fairly abundantly on a specimen of Sporochnus pedun- 
culatus. It occurred only on the assimilating filaments which form a tuft on the 
fertile branches of this plant, and their number was often so great that these fila- 
ments were rose-coloured in spite of the extreme smallness of the epiphyte. Its 
appearance is that of a Chantransia of the group with one basal cell; it is indeed 
somewhat similar to Chantransia hallandica 7, parvula. The basal cell is hemi- 
spherical, attached to the substratum by a thin layer of cementing substance (fig. 67£). 
It gives off at all sides in a horizontal direction, but not from the upper side, a 
number of filaments, in well developed plants 6 or 7. These filaments grow out 
along the surface of the filament of Sporochnus but are not attached to it; they 
