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 — 6/7. 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. 



/?, brevior. Cells ca. 2 (I'/a — 3) times as long as broad, 

 primary filaments often branched from the base. For the 

 rest as a. 



Y, parvula (Kylin). (Syn. Ch. parvula Kylin I.e.). From 

 the basal cell are given off up to 6 filaments which are 

 (5 — )6 — 1 fi 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 alwavs been found epiphytic on ' 



Chantransiu Iiallaiidica Y, par- 



Polysiphonia nigrescens and Pol. violacea. F.panmla has also miZa. From em. piant with spoi- 

 been found on Porphyra unibilicalis. It has only been met angiaonu. fflo 1. 



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 /? have been found in depths 

 of 4 to 15 meters, y in depths of to 

 9,5 meters. 



Localities. Kll: Krageskovs Rev, KC, 

 (/?); Hirsliolm, (/5) ; Frederiksliavii, (;-); VT, N. of 

 Nordre Ronner, (a and /3); Trlndelen, FF, 15 

 meters. - Ke: XA, 13 meters, (a). Kill: VQ, 

 Svitringen, (a); BH, off Gjerrild Klint, (;-). 

 Ks: EM, Lysegrund, (;-). Sa: BD, N. of Tuna; 

 MQ, (/?); AH', N. of Fyens Moved, (a). - Lb: At 

 F£en0, (a). — Sb: AB, W. of Sprogo, 7,5 meters 

 (a). — Bw: LC, S. of Langeland, 11,5 meters, (a). 



'row- 



- B. 



10,5 



4. Chantransia baltica sp. nov. 

 E cellula basali globosa, diametro 

 "14 /n, fila usque 6 subsimplicia, 



Fig. 26. 



Chantransia Itallanilica Y , parvula. From Frederikshavn, 

 ing on Porphfira unibilicalis. A , ])hint with sporangia, 

 fihimenl wilh partly emptied sporangia. — C, germinating 

 spore. - D and E, young jjlants, still sterile. Ii00:l. 



longitudine 400 /y. vel ultra, egrediunt. 

 Cellulse (5 — )6 — 7( — 9)// crassse, in fills bene evolutis diametro 4 — 6( — 7Vplo lon- 

 giores, chromatophorum axile, pyrenoide centrali instructum , in parte superiore 

 cellulcE situm, continentes. Sporangia monospora ovata, 12 — 16 longa, 8 — 10 /7. 

 lata, vulgo c. 14/j longa, 10^. lata, in fills primariis lateralia vel terminalia, sessilia 

 vel stipitata, in stipite unicellulari singula, in articulis filorum stepe bina, opposita, 



I). K I). Videiisk Sclsk. Sl<r 



l!:i'kUe, iKitiii\ i<lciisU. o;; iiiMlhem. Mil. \'I1. 1. 



13 



