174 GRATELOUPIACEAE 
and their ostioles are very conspicuous, both in surface view and 
in section, being irregularly elliptic and 30-100 и in diameter at 
the surface and 80-160 и deep. 
PLATE 63. Расйутета cuticulosa 
Photograph of the type specimens (Coker o964z2—from liquid edes 
attached to a pebble, reduced to about three fifths of the natural dimensio 
РЕ Jp Ag. Sp. Alg: 2: 185. 1851 
PRIONITIS DECIPIENS (Mont.) J. Ag. loc. cit. 188 
Gelidium decipiens Mont. Voy. Bonite, Bot. Crypt. 76. pl. 145. f. 2. 
1846. 
Prionitis pectinata J. Ag. Sp. Alg. 2: 189. 1851. 
“In beach drift," La Punta, region of Callao, December, 1906, 
Coker 23 p.p.; “оп tide rocks, Bay of Ferrol, N., region of Chim- 
bote, common; brown, greenish near tips," Mar. г, 1907, Coker 118 
(tetrasporic and cystocarpic); also, same locality and date, Coker 
119 p.p.; “dark green, common," Lobos de Afuera, Маг. 27, 1907, 
Coker 144 p.p. (PLATE 65); “оп surf-washed rocks, common, red- ` | 
dish brown,” Chincha Islands, June 18, 1907, Coker 101 (tetra- 
sporic and antheridial); also, “dark reddish brown,” same locality 
and date, Coker 193c; also, “knotty, olive-brown, common," same 
locality and date, Coker 104с (cystocarpic); Chincha Islands, | 
July 13, 1908, Coker 402 p.p. (PLATE 64); “from drift on the 
beach,” Pisco, July 7, 1908, Coker 465 b.b. 
Тһе specimens cited show much variation in size and habit | 
and more especially in the number and size of the pinnae, yet We 
doubt if they offer any satisfactory grounds for specific segrega- | 
tions. Fourof Dr. Coker's numbers are from the Chincha Islands, 
the type locality of J. Agardh's P. pectinata,* and among these the 
younger less developed individuals seem indistinguishable from 
P. decipiens, the type of which we have examined through the 
courtesy of Messrs. Mangin and Hariot of the Muséum d'Histoire 
Naturelle of Paris. The original of Montagne’s Gelidium decipiens v 
came from Paita, which is somewhat more than 1000 kilometers , 
north of the Chincha Islands. 
.. Most of the Specimens collected by Dr. Coker show numerous | 
ТА рани of the type of this species we owe to the courtesy of Professor | : 
Nordstedt. The type is closely matched by several of Dr. Coker's specimens. 
