191^] Setchell : The S<i)iaia Assemblage 91 



HaU/niciiia furcdlata C. Agardh, Spec. Alg., vol. 1, p. 212, 1821, Syst. Alg. p. 244, 

 1824; 



Greville, Alg. Britt., p. 163, 1830; 



Hooker, Brit. Flora, vol. 2, part 1, p. 308, 1833; 



Harvey, in Mackay, Fl. Hibern., part 3, p. 189, 1836, Man. Brit. Algae 



(1st edn.), p. 52, 1841, Man. Brit. Algae (2nd edn.), p. 149, 1849; 

 J. G. Agardh, Alg. Medit., p. 98, 1842; 

 Ginnania furcellata Montagne. in Webb, et Berth., I'hyt. Canar., ])art 2, sect. 3, 

 p. 162, 1840 (by implication), Voy. Bonite, p. 61, 1844-46, Fl. Alger., p. Ill, 

 1846, Syll. Gen. et Spec. Cryj.t., }.. 437, 1856; 



Zanardini, Syn. Alg., fig. 1, 1S41, Saggio di class, iiat. d. Ficee. p. 49, 1843; 



Endlicher, Gen. PI., Sup].. 111. ]>. 40, 1843; 



De Notaris, Giorn. Bot., vol. 1, p. 311, 1844, Atti Ruin. Sc. it., p. 4!i.'), j.l. 



II, 1845; 

 Rabenhorst, Deutschl. Krypt.-Flora, bd. 2, abth. 2, y. 149, 1S47; 

 Harvey, Phyc. Brit., pi. 69, 1846; 



Kuetzing, Spec. Alg., p. 715, 1849, Tab. Phyc, vol. 16, pi. 68, fig. II, 1866; 

 Myeloniium pulvinatum Kuetzing, Phyc. Gener., p. 393, 1843; 

 Myelomium furceUatum Kuetzing, Phyc. Gener., p. 393, pi. 73, fig. 1, 1843; 

 Ginannia pulvinata Kuetzing, Tab. Phyc, vol. 16, pi. 68, fig. a, b, 1866; 

 Fucus succosus Schousboe, in Bornet, Alg. Schousb., p. 265, 1892 (as synonym); 

 Schestedtia humilis Schousboe, in Bornet, Alg. Schousb., p. 265, 1892 (as 



synonym) ; 

 Endymonema massilitHse Schousboe, in Bornet, Alg. Schousb., p. 265, 1892 (as 



synonym) ; 

 Schestedtia purpurea Schousboe, in Bornet, Alg. Schousb., p. 265, 1892 (as 



synonym) ; 

 Exsiccatae. 



Lloyd, Alg. Quest., No. 112 (under Scinaia furcellata) . 

 Crouan, Alg. Mar. Finist., No. 225 (under Scinaia furcellata). 

 Desmazieres, PI. Crypt, de France, No. 1288 (under Dumontia interrupta). 

 Wyatt, Alg. Danm., No. 79 {under Halymenia furcellata). 



Plant rosy red to red purple. 2-8 em. high. 8-!) (nsnally 7-8) times 

 dichotomou.s. slender (0.75-3.0 mm. diam. dried), eylindrieal. eon- 

 tinuoiis, branches slightly attenuated downwards, apices blunt to 

 slightly acute; axis very obscure (dried) as a rule; monoecious; 

 cystoearps minute, barely visible to the naked eye. scattered ; — axial 

 strand broad, of a few larger tllaments and many slender filaments 

 loosely applied and intertwined; ascending filaments obscure down- 

 wards; epidermal layer of large colorless cells or utricles surrounded 

 by numerous slender colored cells; utricles oblong or obovate. 13- 

 22/x (T) and 22-24/x (R). commonly 1:^ (T) by 22/x (R), with outer 

 ends rounded and decidedly convex; colored cells of epidermis about 

 22/Li (R) by S/x (T), single or fascicled, very abundant, loosely en- 

 circling the colorless cells, and each finally bearing anthoridia which 

 project beyond the colorless cxtei-nal cuticula ; hypodei-mal eclls in 

 2-3 layers, oblong or obpyriform, 6-18/>i (T) ; corticating la.Ncr 

 (within hypodermis) broad, loose, of slender intertwined filaments; 

 antheridia single or double, borne successively on single or slightly 

 fasciculate slender colored cells among the colorless cells of the epi- 



