I IO 



i S spumos* Lateral appendages 



wil nple, inil.it' it< head. 



\I.un filament! diameter (Indian < >< ean). 



.l.iüi fil . ■ diametei \\ i si Indie 



\ spiculoso-granulose or papillose 



simple "i forked, mostij shortl) pedi 



■ 1 in close subverticils or distichousl) secund 



• ndages spinose, 



appendages ver) obtuse 



icnts pluriseriate, requiring to be torn apart after decalci 

 l ortex very coherent. Lateral appendages of une 

 iiLial length. 



i. Frond thick, much calcified; appendages mostly springing 

 from opposite sides of the filament, at irregular inter- 

 vals, cymoidly subdivided at apex 



ii. U. argentea (p. i .■ 



i2. U. i>i < identahs (p. 1271. 



1 3. I ' . verticillosa (p. 1 28 I. 

 14. U. Wilsoni (p. 130). 



15. U. flabellum [p. 131). 



1. Udotea javensü \. & E. S. Gepp 



in Journal of Botany XI. III. 1904. pp. 363 — 4, tab. 467. figs. 1 — 4. 

 Syn. Rhipidosiphon javensis Montagne Prodr. Phycolog. Antarct. 1848. p. 14. 



Rhipidosiphon javensis Montagne in Dumont D'Urville's Voyage au Pole Sud, Bot. I. 



23. I'l- /"• fig- 3- 

 Udotea glaucescens var. tennis or tenuior Grunow in Ferguson's Ceylon Algae n' 1 

 Udotea javensis Okamura Icones of Japanese Algae. I. 1908. p. 228, pi. XI. V. figs. 1 — 7. 



Hab. Indic. Leyden, Batavia, Hombron\ — Ceylon, Ferguson\ — Maumeri, Flores, Dec. 1888. 



n" 1037. Madame Weber van Bosse) — Macassar, Lei-lei, coral reef, Nov. [888, n° 932, 

 Madame Weber van Bosse \ 



Expedition. Stat. 16. Kangeang Island reef! — Stat. 43. Island Sarasa, Paternoster 

 Islands, reef! — Stat. 53. Bay of Nangamessi, Sumba, reef! — Stat. 71. Macassar reefs! — 

 Stat. 7>i . Island Kabala dua, Borneo bank, reef! — Stat. 81. Island Sebankatan, Bon 

 bank, reef! — Stat. 125. Sawan, Siau Island, reef! — Stat. 213. Saleyer reef! — Stat. 248. 

 Tiur Island, reef! — Stat. 261. Elat, Great-Kei Island, reef! — Stat. 282. X. E. point 

 of Timor, reef! — Stat. 296. Bay of Noimini, South Coast of Timor, reef! — Stat. 

 tti Island, reef! — Stat. 322, Sankapura roads, Bawean Island, reef! 

 1' .\' lil' . Hiuga, Kiushiu, Japan, Yendo (well fïgured by Okamura, loc. . 



Stipes simple, 'reet. monosiphonous, smooth, not encrusted, sometimes radicelliferous, 

 60 — ioou thick. 



l-'rond 2.5 — 30.0 mm. high, glaucescent-green, cuneate at base, rotundate and fimbriate, 

 rate above, flabellately expanded, formed by repeated dichotomy of the Rlaments, 

 tromatic, calcified. 

 Filaments laterally coherent by calcilication, straight, smooth, mostly 45 — 50 p thick (u\> 

 ■ • base). Supra-dichotomial constrictions uneven. Calcified sheath porose. [Fig. 36]. 



Th formerly known as Rhipidosiphon javensis Mont., was made the type ol 



Rhipidosiphon and placed in Siphoneae by Montagni (1. c.) in 1842. The plants 



