Conferva.] ALG/E CONFER VOIDED. 055 



der neck, and then drop off. In autumn, many of the tufts assume 

 a yellowish or ochry colour, the effect of age and long exposure to the 

 sun, and in this state they constitute the C.fueicola of Agardh." Carm. 



25. C. fldccida, Dillvv. (flaccid rusty Conferva); tubercles 

 small, filaments penicillate flaccid and tender, lower articula- 

 tions half as long as broad, upper of equal length and breadth. — 

 Dilho. Conf. Syn. t. G. Lyngb. Hydfoph. Dan. t. 50 ? Ay. Sytt. 

 A/c/.p. 102? 



On Fuci ; especially Cystoseira fibrosa. — Filaments half an inch long, 

 dull olive-brown; tubercle of the same structure as in C.fucicola; from 

 which species, except in the shorter and more flaccid filaments and 

 short joints, the present does not differ; C. curia being intermediate in 

 these respects. 



20. C. curia, Dilhv. (small parasitic Conferva) ; filaments 

 minute rising from a tubercle rather rigid sub-penic illate. arti- 

 culations about as long as broad Dilliv. Conf. t. 7G. Ay. Syst. 



Alg.p. 103. 



On Fuci. — Filaments 1 — 3 lines long, rising from a small tubercle, 

 formed of denser, branching filaments, brown, tapering towards the base, 

 obtuse. Articulations about as long as broad, dissepiments contracted. 



27. C. scutulata, Sm. (target Conferva); " olive-brown, fila- 

 ments branched at the base densely combined into a depressed 

 peltate mass rooted in the centre, joints as broad as long." 

 Sm.~E.Bot t.23\i. 



On Himanthalia torea: — on which it forms broad, wart-like tuber- 

 cles. 



f. Filaments purple or pink, tufted. 



28. C. cdrnea, Dilhv. (pale-red Conferva); " filaments simple 

 Blender short pale-red, articulations torulose 2 — 3 times longer 

 than broad, endochrome contracted into a solitary globule." 

 Dillw. Conf. t. 84. Ay. Syst. Alg.p. 103. 



On Conferva*, in the river near Lough, or Glamorgan, near its con- 

 fluence with the sea, Mr. /('. W. Young. 



29. ('. n ramicola, Lyngb* (short-jointed rosy Conferva); fila- 

 ments very Blender flaccid rosy, articulations equal in length and 

 breadth, endochrome at length globular and escaping through 

 the tube. — Lyngb* Hydroph* Dan. t. 48? 



In rocky pools, i>n various small Algce% at Appin, ( 'aj>t. CaruuckaeL — 

 " Filaments very slightly tutted, or rather gregarious, about an inch long, 

 \<t\ Blender and flaccid, ofa purplish-rose colour. Articulations about 

 ;h lorn: a^ broad, becoming at length gibbous, when the internal mass, 

 which was at first square, assumes a globular form, and bursts through 

 the tube." Carm, MSS. The bursting of the tube and the discharge of 

 the endochrome in globular masses, seem to indicate some affinity to 

 Ulatoriece. 



B. filaments branched, 



a. Inhabiting fresh-water or on (lump grouiul. ( ('. ^Iomerata 



soim ti/ms t/ron-s in tin Mk) 



•''<". < '. /ini/r/tii, l>illu. (Hrmrn's ( n/ii'i rvn ) ; l « filament- 



