in anj way the transference of C com XvrainvilUa. What 



i p ro ol tin: quits its very characteristic tufted form and assumes 



a ,,„„,. higl inised habit, I rainvillea <>r of any other Siphoneous genus. This 



. wanting; no variation from the normal growth having ever been recorded for 



in question. 



i Baili j & 1 larve) 



m Han - ui' i. III. iS;S. p, 29; & in Wilkes U.S. Explor. Exped. XVI] 



p. tab. VIII, figs. 8— 10. 



Grunow in Reise Oesterr. Freg. Novara Bot. I. 1S70 p. 35. 

 Sonder Alg. Trop. Australiens in Hamburg Abhand. V. ~. [871. pp 

 74. tab. VI, fi i and in F. von Müller's Fragm. Phytogr. Austral. XI. Suppl. 1880. p. 38. 



. Murr. Cv Boodle Journ. of H<>t. vol. XXVII. 1889 p. 71, tab. 289, fig. 12. 

 1 l ii toni Syll. Alg. I. 1889 p. 5 15. 

 . mosa Askenasy in Forsch. "Gazelle" Theil I\'. 15"t. [889. Algen, p. 9. 

 iesmis cotnosa Okamura lllustr. Mar. Algae Japan vol. I. 1900 p. 13 pi. Y. 

 Aurainvillea cotnosa Heydrich in Her. deutsch. bot. Gescllsch. XXV. 1907 p. 101. 



rodesmis cotnosa A. v\: E. S. Gepp in Trans. Linn. Soc. (Bot.) VII. 1908 p. 180; (Zool.) XII. 

 ,0. 



//•ir. r.\< ui' . Fiji, U.S. Explor. Exped. — Uvalau, * Challenger" Expedition! — Friendly Islands: 

 Vavau & Lifuka, [855, Harvey, n" 90! — New Caledonia, ex herb. Le Jolis\ — Solomon 

 Islands, Herb. Merrifield\ — New Hebrides, in Herb. /■'. S. Collins\ — New Guinea, 1888, 

 Karnbach\ — Queensland, Port Denison, Sonder. — Upolu and Tongatabu, in Herb. Mus. 

 BritA — Riukiu Islands, Okamura. 

 INDK . Celebes: coral islands near Makassar, 1888, Madame Weber van Bosse\ — Seychelles: 

 Malie. * Valdivid" Expedition. — Seychelles: Praslin, 7. Stanley Gardiner\ 

 .,</ Expedition. Stat. 312. Saleh 15. iy, Sumbawa, reef! — Stat. 86. Dongala, Celebes. 



Plant up to 7 cm. his^h, with or without a stipes-like base, constituted of a pale spongy felt- 



work of basal branches and rhizoids. bearing a coma of free and radiating filaments above-, basal 



filaments creeping, irregularly swollen and constricted, much and irregularly branched, emitting 



illy branched stolons and rhizoids, and by dichotomy producing the ascending filaments; above 



the base the filaments are bright-green, torulose below, then cylindrical, straight, flaccid, 2 — 7 cm. 



. 60 — 140 p, in uiameter, distantly dichotomously branched, the resulting pair of branchlcts 



iistricted once a little above the dichotomy, bul at unequal distances. [Figs. 69 — 73J. 



Harvey described this species as having a distinct and often elongate spongy stipes, 



vrdh, who discusses the rharacter of the filaments in soine detail, calls in question 



iy • » t regarding the spongy nidus as a stipes. The so-called stipes consists of a 



if rhizoids and basal branches intricately felted together, as carefully described 



- ompare figs. <>c K 73 <i). 



iracteristics of typical specimens of C. cotnosa are the very obvious 



die supra-dichotomial constrictions of the upper filaments (fig. 69^, 7-. 73 ^), 



to even up to twenty, torulose constrictions which usually occur at the 



their point of origin from the creeping basal portion (fig. 7.; < ■). 



imetimes faintly discernible up to above the the third dichotomy. It 



