66 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



able, bifurcation of tbe filament below the articulation of the branches. 

 The arms were generally unequal on the two sides. In one case the fila- 

 ments were several times contracted above the articulation, giving a 

 slightly beaded appearance. The amount of study of this material which 

 was possible was, of course, very limited. In addition to a copy of the 

 Alg. Jap, Exsic. no. 96 in the writer's herbarium, he has one from Subur- 

 atsu, Hinga, Japan, coll. Higashi, July 1924; neither of these shows a 

 stalk, and they do show segments forked below the branch articulations, 

 with the opposite arms of unequal length. 



The most complete account of the genus Chlorodesmis known to the 

 author is that of A. & E. S. Gepp (1911, pp. 13-19). They recognize 

 three species, C. comosa Harvey Si. Bailey with filaments 60-140 ju, diam. 

 and the tops of the branch supporting cells unequally bifurcate, C. 

 Hildebrandii A. & E. S. Gepp with filaments 80-130 /a diam. and the tops 

 of the supporting cells not bifurcate, but rather transverse with the 

 branches articulated on the angles at an equal level, and the little-known 

 C. major Zanardini, with filaments "more than twice as thick as C. 

 comosa." 



In the herbarium of the New York Botanical Garden there is mate- 

 rial from Papete and Arue Reef, Tahiti (coll. A. G. Mayor), Aunuu I. 

 and Aua, Samoa (coll. W. A. Setchell), Upolu, Samoa (Krypt. Exsic. 

 Mus. Palat. Vindob, no. 1349), Taypay, Palawan, Philippine Is. (coll. 

 E. D. Merrill no. 9161), Friendly Is. (coll. Harvey no. 90), New Heb- 

 rides (coll. E. E. Gore), Baie du Sud, New Caledonia (coll. Jouan), 

 which all agree with C. comosa Harv. & Bail, as interpreted by the 

 Gepps. The specimen in the same collection from Pomoni, Jonanna I., 

 Comoro Is. (coll. Hildebrand), appears to be from the type collection of 

 C. Hildebrandii A. & E. S. Gepp, and agrees with the description of that 

 species except that the writer finds the filaments to measure as high as 150 

 fi diam., where they cite but 130 /t, while the lower limit is confirmed. 

 Finally, in the herbarium of the New York Botanical Garden there is 

 one specimen in the F. S. Collins collection simply marked in pencil 

 "Torres Str.," and two from the Murray Islands, Torres Str. collected 

 by H. L. Clark. They represent a species which is about 15 cm tall, and 

 quite coarse. The ill-known C. major Zanard. came from Lord Howe I., 

 east of Australia, and 20° more southerly in latitude. It is possible that 

 it is the same plant as that in the Clark collection, but the inadequate 

 data do not justify associating the Clark plant with that species name, nor 

 is it like the other described species, and it may be designated C. torresi- 



