102 GIGARTINACEAE 
Chondracanthus Chauvinii Kütz. Phyc. Gen. 400. 1843. 
Chondroclonium Chauvinti Kiitz. Sp. Alg. 741. 1849; Tab. Рус. 
17: 24. ph 70. 1867. 
Chondroclonium versicolor 17: 21. pl. 69. f. a, b. 1867. 
On rocks, N. E. side of San Lorenzo Island, region of Callao, 
Jan. 11, 1907, Coker 5 p.p.; in beach drift, La Punta, region of | 
Callao, “green in color," Dec. 1906, Coker 23 p.p.; "uyos," from ` 
the market, Lima, “the common market form, used in salads, 
soups, or fritters, but not generally esteemed on the best tables,” | 
Jan. 14, 1907, Coker 26 p.p.; growing in a tide-pool, La Punta, 
region of Callao, Jan. 25, 1907, Coker 33 (‘‘green—the long slender 
specimen was reddish brown"; mostly rather small and young 
and often smooth or nearly so on the rachides); in beach drift, 
same locality and date, 34 (PLATE 38) and 35 p.p. (34 is cystocarpic | 
and tetrasporic; plants attaining length of 70 cm. and the ` 
rachides a maximum width of 3-4 cm.; cystocarpic specimens 
sometimes more or less naked on faces of the rachides); dredged 
in "about 2% fathoms, color red," San Lorenzo Island, Feb. 5» 
1907, Coker 60 p.p. There are also in the herbarium of the New 
York Botanical Garden specimens brought in 1901 from the mar- 
kets of Lima by M. Albert de Lautreppe, who found them offered 
for sale with live shrimps, etc. | | 
We have not seen the original specimens used by Bory inc 
establishing his Sphaerococcus Chauvinii, but the excellent figures 
published by him evidently leave little or nothing to be. desired, 
so far as the recognition of the forms that he had in mind is con- | 
cerned. Bory seems to have had before him a considerable | 
number of specimens, ranging as to original locality from Рана, | 
Peru, to Cape Horn. Не states that he first received Ше species | 
from Chauvin, who had numerous and magnificent specimens of 
it from Cape Horn, and it seems probable that a Cape Нот | 
specimen may prove to be entitled to be considered the technical | 
type of the species. 
In our largest specimens the main axes are sliglitly broader x 
than the broadest figured by Bory and in certain others the axes | 
are considerably narrower than the narrowest figured by bim- 
The narrower forms appear to intergrade hopelessly with G. 2 
Lessonii. In Из narrower, more regularly pinnate conditions, it 
