CHANTRANSIACEJ5. 285 



Chantransia pygmaea. Kutz. Phy. Gen. 285. 



Tufts rounded, about a line in diameter, dingy greenish, be- 

 coming reddish, violet, or steel-blue when dry ; threads proceed- 

 ing from a common centre, branched upwards in a somewhat 

 fasciculate manner, branches erect, parallel, rather adpressed ; 

 joints 2-3 times as long as broad, apical joints obtuse ; fascicles 

 lateral or terminal. 



SIZE. Cells 011-'014 mm. diam. 



Rabh. Alg. Eur. iii., 403. Kirch. Alg. Schles. 47. Kutz. 

 Tab. Phyc. v., t. 45, f. 2. 



In streams and springs. 



Plate CXIX. Jig. 2. a, tnfts natural size ; b, portions of filaments X 

 300 diam. 



Chantransia investiens. Lenormand in Kutz. Sj). 431. 



Parasitic, rose-red, much branched, joints many times longer 

 than broad, spores solitary or in pairs, lateral and terminal, 

 clavate or obovate. 



SIZE. Cells -006 mm. diam. 



Ralfs. Ann. Nat. Hist. 1851, p. 303. Ralfs. Brit. Alg. Exs. 

 No. 12. Kutz. Tab. Phyc. v., t. 45, f. 4. 



Batrachospermwn rubrum, Hass. Alg. 113, t. 15, f, 2-3. 



On Batracliospermum monili forme and B. atrum. 



" Plant bright red, at first appearing as a minute reddish stain, finally 

 clothing the invested plant with a continuous downy covering. Fila- 

 ments creeping and interlacing at base, and surrounding the plant on 

 which it grows, much branched. Branches not attenuated, alternate, 

 erect, elongated ; joints very long, often twelve times as long as broad, 

 and filled with pink, slightly granular endochrotne. Capsules clavate or 

 obovate, alternate or opposite, sometimes, though rarely, opposite a 

 branch ; the terminal ones are more orbicular." Halfs. 



Plate CXIX. Jig. 1. Portions of filaments X 300 diam. 



Uncertain Species. 



Chantransia scotica. Kutz. Tab. Pliyc. v. t. 42. 



Ca?spitose, about an inch long, steel blue ; threads sparingly 

 branched, branches rather elongated, and, as well as the 

 branches, somewhat divergent ; joints 2-3 times as long as 

 broad. 



SIZE. Cells about 'OOO-'Ol mm. diam. 



Rabh. Alg. Eur. iii. 402. 



On old immersed wood. 



We have no knowledge of this species. The figure is reproduced from 

 that of Katzing. 



Plate CXriL fig. 2. Portion of thread X 300 diam. After Kutzing. 



