I 2 - 



Plants up to 6 cm 1 as much broad, slightly calcified, Root mass a small tufl 



Stipes Mmp!.-. slen aboul i cm. long, about i mm. tliick. Frond rotundato-flabellate, 



orbicular, pandurifi • irregular, often bearing a broad prolification above, usually 



rounded at 1 slightly cuneate, sometimes subcordate, green or faded, con 



entire, lobed or la» erate. 

 1.1 about .}o <). in diameter, radiating from the stipes to the margin, 

 sul,].. sted, pluriseriate to triseriate, those of the different layers crossing 



»ly but inconspicuously branched, the supra dichotomial constrictions being 

 markedh filaments bearing here and there numerous unilateral, short, peltate or 



abrupth truncate papillae, usually simple, sometimes bilobate, borne onlj on the exposed surface 

 of the iil. munt :ternal to the frond); filaments bare of papillae within the frond. Papillae 



t'itti- ther at their edges so as to form a primitive cortex. 



laments of stipes much and irregularly dichotomously branched, having lateral branches 

 with dichotomously divided ends which form an external cortex. [Figs. [3, 14, 52, 53]. 



Th which we have seen more than 30 specimens, all collected at Kurrachee, 



n- ar the mouth of the Iiulus, by J. A. Mürray, lias. so far as we know, never been found 

 elsewhere. In habit it is not unlike green specimens of U. orientalis, but it is much more 

 lik<- U. palmetta in possessing lateral appendages. In U. indica the appendages are short, 

 peltate, or truncate button-like papillae (fig. [3), and are generated only on the outer surface 

 of the superficial filaments of the frond (see Introduction p. 3). Where a filament dips under 

 another filament or passes into the interior of the frond, there it is entirely destitute of papillae 

 (fig. 53). Hence the unilateral and interrupted occurrence of the papillae upon the filaments 

 (fig. 13a, / . These truncate papillae, fitting close together side by side almost all over the 

 frond, form a primitive cortex, [n ('.palmetta the lateral appendages are pointed conical 

 spines, simple, or shortly bifurcated or trifurcated, but always with acute apices. 



9. Udotea Palmetta Decaisne 



in Essai sur Classific. cl. Algues etc. in Ann. Sci. Nat. 2 m ^ scr. toni. XVII. [842 p. 380, 

 pi. 17, fig. 15; also Mem. sur les Corallines Op. cit. XVIII 1S42 p. 105. 

 Syn. Udotea Palmetta Kutzing Species Algarum 1849 p. 503. (non Tab. 1'hyc. vol. VIII. 1S58. 

 p. 12. tab. 

 Udotea Palmetta Gepp in Trans. Linn. Soc. (Bot.) VII. 1908 p. 175; also (Zool.) XII. 1909 p. 385. 

 tea Palmetta Howe in Huil. Torrey Hot. Club XXXVI. 1909. p. 



Hab. INDIC. Cargado- l t ; fathoms, 7. Stanley Gardiner\ Sine l<>co, Ucrb. du Petit- 



Thouars in Herb. Mus. Paris '. 



Plants varying in length to about [3 cm.; moderately calcified. Root-mass small, 

 bulbo I elongate. Stipes simple. slender, to about 4.5 cm. long, and about 2 mm. thick. 

 Iliform, suborbicular from a cordate base. greyish-green, conspicuously zoned, margin 

 enti- times lacerate, sometimes proliferating above. 



1 i' of the frond about 30 jut in diameter, uncalcified, radiating from the stipes to 



