168 GRATELOUPIACEAE 
Grateloupia Cutleriae has been reported from the region of 
Callao and from Paita by Piccone (Alg. Vettor Pisani 55. 1886; 
Mem. В. Ассай. Lincei IVa. 6: —(29). 1889). 
PLATES 59 and бо. Grateloupia Cutleriae procera 
Photographs of dried specimens (Coker 37), the former reduced to a little less 
than two fifths, the latter to a little more than one third of the natural dimensions. 
GRATELOUPIA SCHIZOPHYLLA Kütz. Tab. Phyc. 17: II. 
pl. 36. 1867 
On surf-washed rocks, Chincha Islands, June 18, 1907, Coker 
194b (PLATES 61 and 62), "olive-green," and July 13, 1908, Coker 
493 b-p. (97). 
Grateloupia schizophylla, originally described as coming from 
Chile, may possibly be found to intergrade with С. Сийетае, but | 
Dr. Coker’s specimens have the appearance of being distinct. 
G. schizophylla, in its typical condition, has a deeply dissected or 
dichotomously branched thallus, while typical С. Сийетае has a 
simple thallus. Two of Dr. Coker’s specimens make an approach 
to the type of G. schizophylla as figured by Kiitzing, one of them 
being, however, dissected into more numerous linear segments; | 
this more copiously forked plant, shown in our photograph (PLATE 
61), is 1.2 m. long; just above its cuneate base are several close-set 
and unequal dichotomies, after which the segments (8-25 mm. 
‘wide) are simple or once or twice dichotomous, with subentire ог. 
irregularly proliferous margins and occasional small linear ОГ 
specimens of G. prolongata are (in the dried state) only 10-16 а. 
long, with main axes 2-4 mm. broad, while the Peruvian piani 
are about 1 m. long with main axes mostly 10-25 mm. broad. | 
