97 
From what has been explained above it may be concluded that all the speci- 
mens mentioned must be referred to one species, Ch. hallandica, which may be 
divided into three forms not separable by distinct limits. 
a, typica. From the basal cell are given off usually three upright filaments 
which are branched on all sides, usually without branches below, 5—6 y thick. 
Cells ca. 4 times as long as broad. Sexual organs and spor- 
‘angia present, often in the same plant, the sporangia usu- 
ally alternate, often stalked. 
P, brevior. Cells ca. 2 (1!/:—3) times as long as broad, 
primary filaments often branched from the base. For the 
rest as a. 
7, parvula (Kylin). (Syn. Ch. parvula Kylin 1.c.). From 
the basal cell are given off up to 6 filaments which are 
(5—)6—7 y thick. Cells ca. 2 times as long as broad. Spor- 
angia almost always sessile, most frequently opposite. Sexual 
organs often wanting. 
The species has almost always been found epiphytic on LP Be 
i: À 2 4 Chantransia hallandica 7, par- 
Polysiphonia nigrescens and Pol. violacea. F. parvula has also vula. From EM. Plant with spor- 
been found on Porphyra umbilicalis. It has only been met Dee PE 
with in the summer months (May—August), in all cases with sporangia and usually 
also with sexual organs; ripe cystocarps have been met with in July and August. 
a and 8 have been found in depths 
of 4 to 15 meters, 7 in depths of 0 to 
9,5 meters. 
Localities. Kn: Krageskovs Rev, KC, 
(2); Hirsholm, (@); Frederikshavn, (y); VT, N. of 
Nordre Ronner, (a and £); Trindelen, FF, 15 
meters. — Ke: XA, 13 meters, (a). Km: VQ, 
Svitringen, (a); BH, off Gjerrild Klint, (7). 
Ks: EM, Lysegrund, (7). — Sa: BD, N. of Tuno; 
MQ, (2); AH!, N. of Fyens Hoved, (a). Lb: At 
Fæno, (a). — Sb: AB, W. of Sprogo, 7,5 meters 
(a). — Bw: LC, S. of Langeland, 11,5 meters, (a). 
Fig. 26. 4. Chantransia baltiea sp. nov. 
Chantransia hallandica ÿ, parvula. From Frederikshavn, grow- 3 
ing on Porphyra umbilicalis. A, plant with sporangia. — B, E cellula basali globosa, diametro 
filament with partly emptied sporangia. — C, germinating 
10,5—14 y, fila usque 6 subsimplicia, 
longitudine 400 » vel ultra, egrediunt. 
Cellulæ (5—) 6—7 (—9) » crassæ, in filis bene evolutis diametro 4—6 (—7)-plo lon- 
giores, chromatophorum axile, pyrenoide centrali instructum, in parte superiore 
cellule situm, continentes. Sporangia monospora ovata, 12—16 » longa, 8—10 4 
lata, vulgo e. 14 longa, 104 lata, in filis primariis lateralia vel terminalia, sessilia 
vel stipitata, in stipite unicellulari singula, in articulis filorum sæpe bina, opposita, 
spore. — D and E, young plants, still sterile. 300:1. 
D. K. D. Vidensk. Selsk. Skr., 7. Reekke, naturvidensk. og mathem. Afd. VII. 1. 13 
