"БРЗ ае ттге тепе sea ТЕ 
D: 
SEBDENIA 161 
cells thick (or becoming 3-7 cells thick in the incrassated parts); 
e superficial cells 7-13 и high (including 2-4и of outer wall), 
ақа us а ог broader than high in section, polygonal 
and 7-16 и in maximum diameter in surface view, with narrow 
clearly Дейна limiting walls; cystocarps deeply immersed, lightly 
protuberant on one or both faces, the spore-masses reniform or 
compressed-spheroid, 80-240 u in greatest diameter, provided 
with a slightly developed or scarcely perceptible involucre (peri- 
carp). 
“АД oras limenses . . . in herb. Binder." 
This little-known species of the “іпашгепдаае” class was not 
found in the collections made by Dr. Coker, but for the satisfactory 
determination of his material we have found it desirable to see the 
materials on which the species was based. Through the courtesy 
of Madame Weber-van Bosse, we have examined a fragment of 
authentic material in herb. Kiitzing and by the kindness of the 
officers of the Hamburgische Botanische Staatsinstitute we have 
seen the two specimens now representing the species in herb. 
Binder. One of the plants in herb. Binder is in habit very much 
like that figured by Kiitzing except that it is a little larger, with 
eight main lobes instead of five and with two of the main lobes 
bearing smaller secondary lobes. This specimen is cystocarpic 
and the cystocarps show that the species is not a Sarcodia to which 
genus it had been suspected to belong by J. Agardh (Sp. Alg. 3': 
141. 1876) and by De-Toni (loc. cit.). The second plant in 
herb. Binder and the one that bears Sonder’s inscription is much 
more numerously lobed or dissected, and, though somewhat larger, 
bears a superficial resemblance to Montagne's figure* of the Chilean 
Halymenia leiphaemia, of which species, as the inscription indi- 
cates, Sonder had at first considered his plant a variety. Sonder's 
inscription, by the way, indicates that the plant came from 
“Callao di Lima," no date or collector's name being given. This 
more narrowly and more numerously lobed specimen shows a 
tendency to marginal proliferation in median and basal portions 
and for a distance of about 3 cm. from the base the surface also is 
slightly roughened by a few minute excrescences 0.2-0.3 mm. in 
diameter, these doubtless representing abortive proliferations. 
As another expression, perhaps, of this tendency to proliferation 
* Fl. Boliv. pl. б. f. 2. 
