PLANTS COLLECTED IN JAPAN. 33 1 



ALGiE : By Dr. W. H. Harvey. 



1. Desmarestia viridis, Lamour. ; Harv. Ner. Bor. Amer. l,p. 77. Hakodadi. 



2. Chorda lomentaria, Lyngb. ; Harv. Ner. Bor. Amer. 1, p. 98. Simoda. 



3. Chordaria simplex, Harv. (n. sp.) : frondibus densissime casspitosis filiformibus simplici- 

 bus. — Simoda. 



4. KYTiPHLoeA latiusctjla, Harv. (n. sp.) : fronde lato-lineari complanata tenui membranacea 

 transversim rugulosa bi-tripinnata, jugamento primario simplici v. furcato crebre pinnato, 

 pinnis acutis insequilongis sub-oppositis, minoribus pinnatis, majoribus bipinnatis pinnulis 

 subulatis erecto-patentibus strictis. — Hakodadi. 



5. Polysiphonia Morrowh, Harv. (n. sp.) : fronde badia elongata setacea cfespitosa pellucide 

 articulata 4-siphonia alterne decomposita, ramis primariis basi nudis v. ramulis paucis bamatis 

 instructis supra pinnatim compositis ; pinnis ambitu linearibus virgatis iterum pinnulatis, pin- 

 nulis brevissimis erectis spinasformibus inferioribus simiplicibus superioribus multifidis sub- 

 coryinbosis ; articulis ramorum diametro 6-8-plo longioribus, pinnarum diametro aBqualibus, 

 pinnularum duplo brevioribus ; cystocarpiis ad pinnulas superiores sessilibus urceolatis, ore 

 maximo crenulato. — Hakodadi. A very distinct and bandsome species, densely tufted, 8 to 10 

 incbes long. It is allied to P. urceolata, but tbe ramification is very different. 



6. Polysiphonia Japonica, Harv. (n. sp.) : fronde fruticosa gelatinoso-cartilaginosa badia basi 

 ultra-setacea sursum attenuata decomposite ramosissima, ramis quoqueversum egredientibus 

 alternis vel vagis iterum et iterum divisis, ramulis ultimis brevibus simplicibus furcatis vel 

 dicbotomis apice fribrilliferis ; articulis inferioribus subcorticatis (cellulis secundariis auctis) 

 superioribus nudis 4-siphoniis diametro asqualibus vel sesquilongioribus, articulis ramulorum 

 diametro brevioribus. 



7. Laurencia virgata, Ag.(?) var. ; Harv. Ner. Bor. Amer. 2, p. 71. Hakodadi. 



8. Laurencia : n. sp.? (a single imperfect specimen.) Simoda. 



9. Lomentaria catenata, Harv. (n. sp.) : fronde tubulosa filiformi pinnatim ramosa, ramis 

 oppositis v. sparsis longissimis crebris obsoletissime et distanter constrictis ramuliferis, ramulis 

 sajpe verticillatis nunc oppositis v. sparsis nunc fasciculatis catenato-constrictis, articulis 3-4- 

 seriatis fusiformibus v. ellipsoideis ; soris maculasformibus, tetrasporiis in ramulis immersis. 

 — Simoda. A remarkable species, having much the habit of a Gorallopsis, but not the structure. 



10. Chondria atropurpurea, jHcr.ru. (?) Ner. Bor. Amer. 2, p. 22, t. 18, E. Hakodadi. A 

 single faded specimen, seemingly referable to this species. 



11. Amphiroa Californica, Decaisne. (?) Simoda. 



12. Delesseria serrulata, Harv. (D. serrulata, Harv. Alg. Austral. No. 277, non Post. & 

 Ruppr.) : fronde costata foliolis a costa crassa prorumpentibus ramosa, foliolis lineari-lanceolatis 

 utrinque acuminatis serratis ; cystocarpiis sorisque in foliolis junioribus evolutis, soris diffusis. 

 — Hakodadi. These specimens so nearly agree in character with those from Port Jackson, on 

 which the species was founded, that I venture to consider them as the same. They are less 

 bright in color, rather purplish than rose- red, and the apices of the leaves are more acute. But 

 the nearly allied D. Hypoglossum varies in a similar way. 



13. Gelidium cartilagineum, Grev.; Harv. Ner. Bor. Amer. 2, p. 117. Simoda. 



14. Gelidium corneum, Lamour.; Harv. Ner. Bor. Amer. 2, p. 116. Webster's Island, 

 Jeddo, and Simoda. 



15. Halosaccion ? (Haloccelia !) Japonica, Harv. (n. sp.) : fronde . . . . ; ramis filiformibus 



