284 RHODOPHYCE^. 



Chantransia Hermann!. (Roth.) Kutz. Pliyc. Germ. 230. 



Caespitose, pale rosy-pnrple, three lines long ; threads and 

 branches whip-like, straight, branchlets spreading, then ascend- 

 ing, joints 3-6 times as long as broad, the final joints cuspidate, 

 or rarely piliferous. 



SIZE. Cells -009--002 mm. diam. 



Ealfs. Ann. Nat. Hist. 1851, p. 403. Rabh. Alg. Eur. iii., 

 402. Kirch. Alg. Schles. 46. Kutz. Tab. Phyc. v., 43, f. 2. 



TrentepoliUa pvlchella (Ag.) Eng. Fl. v., 382. Eng. Bot. ii.. 

 t. 2533. Harv. Man. p. 118. Johnst. Fl. Berw. ii., 242. 

 Mack. Hib. 219. 



Conferva ncma, Dillw. Conf. t. 30. Gray Arr. i.,308. Eng. 

 Bot. i., t. 2585. 



On aquatic plants in streams. 



" The tufts are dense, soft, and woolly, not gelatinous, and adhere but 

 imperfectly to paper ; they are often confluent, their colour is reddish, 

 becoming tawny by age, and in drying. Filaments much branched, main 

 branches elongated, somewhat level-topped, fructiferous branches lateral, 

 numerous, short, patent, much divided. Capsules at first oval or clavate, 

 finally orbicular, crowded in a corymbose manner, mostly stalked. 

 Joints of stem 3-5 times as long as broad, those of fertile branches 

 shorter. Differs from C. chalylea in colour, and in its shorter joints and 

 more patent ramuli." Rolfs. 



Plate CXmi. jiff. 2. Portion of filament X 300 diam. 



Chantxansia chalybea. (Li/ngb.} Kutz. Phyc. Gen. 229. 



Csespitose, steel-blue, about an inch long. Threads radiately 

 disposed, aclpressed, branches straight, joints three to six times 

 as long as broad, spores collected in a racemose manner on lateral 

 branchlets. 



SIZE. Cells 'Ol-'Oll mm. diam. 



Ralfs. Ann. Nat. Hist. 1851, p. 304. Brit. Algre Exs. No. 

 11. Rabh. Alg. Eur. iii., 402. 



Conferva chalybea, Dillw. Conf. t. 91. 



Conferva corymbosa, Eng. Bot. i., t. 1666, f. 1. 



Trentepohlia corymbifera, Eng. Bot. ii., t. 2534. 



Trentepohlia pulcliella, (3, chalybea, Eng. Fl. v., 382. Harv. 

 Man. 118. Mac. Hib. 219. 



TrentepoliUa chalybea, Johnst. Fl. Berw. ii., 243. 



Ectocarpus chalybeus, Gray Arr. i., 322. 



Trentepohlia pulchella, Hass. Alg. 73, t. 8, f. 2. 



Rivulets, waterfalls, and on water-wheels. 



" Plant laxly tufted, of an inky colour, more or less tinged with green. 

 Branches rather distant, level-topped, erect, their joints 4-G times longer 

 than broad. Fertile branches short, appressed, their joints shorter and 

 usually turgid. Capsules orbicular, corymbose." Ralfs. 



Plate CXIX. fig. 3. , portion of tuft natural size ; $, portions of 

 threads X 300. 



