1912] Collins,— Papers of Wilkes Exploring Expedition 59 
fine species, quite unlike any of the genus hitherto described.” and a 
footnote, p. 161, * For the reasons given in the Nereis Boreali-Ameri- 
cana, 2, p. 147, the name of this species must be changed to Rhody- 
menia pertusa, J. Ag., Sp. Alg. 2, p. 376. W. H. H.” Chlorodesmis 
is characterized as “Nov. Gen.," p. 172, but on p. 173 we find “[A 
second reputed species of this genus is described and figured in 
Harvey, Ner. Bor. Amer. 3, p. 30-40, but that may possibly be a 
Derbesia. W. H. H.J” 
That these things should be published as new in 1862, with refer- 
ences to earlier descriptions in 1853 and 1858, is not the worst; the 
one genus and four species mentioned above, with another genus 
Notheia, and twelve other species in the Wilkes paper of 1862, were all 
properly published by Harvey and Bailey in 1851!! The species 
in question are, in addition to those already mentioned, Notheia 
anomala, Nostoc expansum, Ectocarpus hamulosus, Chondrus uncialis, 
Gracilaria filiformis, Gymnogongrus ? dendroides, Gelidium unilaterale, 
Liagora hirta, Caulerpa falcifolia, C. Pickeringii, Dictyota bidentata 
and Chlorodesmis comosa. The seventeenth species of the 1851 list 
is Hypriea (probably a misprint for Hypnea) Coulteri, which does not 
appear in the 1862 work. There is no mention whatever of this 
earlier paper in the later work, while in the Nereis, under Rhodymenia 
pertusa we find the synonym “Rhodymenia Wilkesii Bail. & Harv. 
in Bot. Expl. Exped. cum Icone, ined.," and under Chlorodesmis 
the remark “ The genus Chlorodesmis was founded by the late lamented 
Professor Bailey and myself on an alga brought by Captain Wilkes 
from the Feejee Islands.” 
It is not difficult to understand why the Harvey and Bailey paper 
of 1851 has been forgotten. It is possible that a careful search would 
find authors who mention it, but the only instances in algological 
papers that have come to my notice are Setchell & Gardner,? and 
Tilden? But the unfortunate fate that has pursued the Wilkes algae 
from the start seems to have extended to both of these references; 
Setchell & Gardner include both the 1851 and the 1862 papers in their 
! W. H. Harvey & J. W. Bailey, Description of seventeen new species of algae col- 
lected by the U. S. Exploring Expedition, Proc. Boston Soc. Nat. Hist., Vol. III, 
p. 371. 
? W. A. Setchell & N. L. Gardner, Algae of Northwestern America, Univ. of Cali- 
fornia Publications, Bot., Vol. I, p. 165, 1903. 
3 Josephine E. Tilden, A contribution to the bibliography of American algae, 
Minnesota Botanical Studies, Vol. I, No. XXIII, p. 295, 1895. 
