GIGARTINA 105 
Gigartina contorta, which J. Agardh and others have accepted as a 
true Gigartina, but an examination of the original of this, also from 
Concepcion, Chile, and also now preserved in the Muséum d’His- 
toire Naturelle at Paris, shows that it is not a Gigartinaceous 
plant in any modern sense, as it has a Gracilarioid structure. 
It is probable that the irregularity of the branching makes our 
Gigartina glomerata most at home in J. Agardh’s Aciculares tribe 
of the genus, as the species were last rearranged by him (Anal. Alg. 
5: 9. 1899). 
PLATE 39. Gigartina glomerata 
. Photograph of the type specimen (Coker 55, cystocarpic—from liquid pre- 
2. natural size 
B. Photograph of Coker’ s no. 80 p.p. (from liquid preservative, natural size). 
PLATE 40, FIGURES І-ІІ. Gigartina glomerata 
1. Terminal portion of one of the main branches of a sterile plant. 
2,3. Terminal portions of main axes of copiously cystocarpic plants. 
4, 6, 7. Figures showing the ultimate ramification of a sparingly cystocarpic plant. 
5, 8. Кати! bearing cystocarps. 
9. Outline of cross section of an ultimate ramulus. 
то, тт. Outline of cross sections of main 
Figures 1-3 are drawn from the type material (San Lorenzo Island, region of 
Callao, Coker 55); 4-11, from Coker 80 p.p. (Pescadores Islands). All of the figures 
nlarged 6: diameters 
GIGARTINA TUBERCULOSA (Hook. f. & Harv.) Grun.; 
Piccone, Alg. Vettor Pisani 58. 1886. 
Hariot, Miss. Sci. Cap Horn 
5: 68. 1889 
Chondrus tuberculosus Hook. f. & Harv. in Hook. f. Fl. Antarct. 
188. 1845. 
Nothogenia tuberculosa Kiitz. Sp. Alg. 793. 1849; Tab. Phyc. 19: 
Ы. 46. f. c, d. 1869. 
Оп rocks іп the surf, Mollendo, August 1908, Coker 565 Р.Р. 
[PLATE 40, FIGURES 12—17; PLATE 41.) 
Only the few cystocarps of which figures are herewith published 
have been noted on Dr. Coker’s material; one of these is evidently 
mature, the others immature. We have not seen the Cape Horn 
specimens referred to this species by Grunow and by Hariot, but 
the Peruvian plant seems to differ somewhat from the New Zealand 
originals preserved in the Royal Botanic Gardens at Kew, though 
