CHINESE MARINE ALG 165 
collected by Petersen in 1881. One of these prppsantay® ews 
good examples of both tetrasporic and sterile ram 
The plants composing the Wei-hai-wei patents are laxly 
interwoven and closely connected by rhizoids, which grow out at 
the points of intersection. This habit would lead one to suspect 
at the species may have a prostrate habit. The ramuli are 
arranged mostly in whorls of three or more round the thallus, 
species of Cer amin. _ The tetraspor es are borne in the wollen 
who has been so kind as to examine my plants, regards them 
ivaeie the end of their vegetative period, a nd he sroupyeets 
that at the time of their full growth the fertile vatiiall were termi- 
nated by longer stichidia with the mee slightly protruding 
along the outer margin. This arrangement of the tetrasporangia 
is to be seen in several of the specimens, tgeli with examples of 
the fertile swollen heads, as — above _ The tetraspores are 
divided, sometimes cruciate 1] he affinit 
of U. Boydenit is somewhat Rifficult to determine. The distribution 
of its tetrasporangia would give it a place in Series I. Ectoclinia of 
. G. Agardh (Analecta Algologica Continuatio, li. p. 12, 1894), but, 
inasmuch as C. Boydenti is entirely corticated, it cannot be place 
any of the four tribes into which Prof. Agardh has divided 
= Pos a therefore requires a new tribe for itself 
express my indebtedness to Monsieur Bornet and to 
Nagas. Reinbold for kindly giving me 5 views on this — 
26. GrareLoupia Finicina Ag. Ma-su, Swatow, 
Geogr. Distr. isdiieahiaes Merue. Atlantic, South pare 
apan. 
ings, including plants with cystocarps and tetraspores. 
A Mata ie a of t allus of some of these plants shows 
that it is often more or ae bolle sometimes en narscap ten: the 
figure of Grateloupia porracea in Kitz, Tab. il. fig. 25c¢. 
This figure is quoted re J. G. Agardh in on pe cies Algarum, 
vol. iii. part i, p. 154, as being probably G. /ilicina Ag. The 
Swatow plant cannot be pate red to G. divaricata Okamura (Bot. 
Mag. Tokyo, ix. Dec. 1895, p. 482), since it differs in its manner 
of peumahine and general habit. 
27. Coratuina sp. Wei-hai-wei, Boyden! 
mesa oF PratE 460 
Ceramium eit n. sp.—l. Plant (Wei-hai-wei), nat. . Fertile 
ramuli (Wei-hai-wei); a, x 20; b, x . 50. 3. Sterile ramuli (Yenoshima) x 20. 
Poly 1 Mgt te japonic a Harv.—4. Plan , nat. size; a, with cystocarps; 
b, steri . Transverse Sabetion of thallus, x 40. 6. Cystocarp, x 35. 
Chordaria Jirma, 0. sp.—7. Transverse seine of thallus, x 90. 8. Longi- 
tudinal section of thallus, x 90. 
