3eWU//] ^o^n fi/J^rr "1:^0-^:11 UNIVERSITY- OF CALIFORNIA PUBLICATIONS IN BOTANY Vol. 8, No. 2, pp. 139-374, plates 9-33 July 14, 1920 /J THE MARINE ALGAE OF THE PACIFIC COAST OF NORTH AMERICA PART II CHLOROPHYCEAE *J ^?~» BY WILLIAM ALBERT SETCHELL AND NATHANIEL LYON GARDNER = = cmr — i-R 5: CD- SI D m a \ UNIVERSITY OF CALIFO'RNIA PRESS BERKELEY ^ - UNIVEESITY or OALIFOSNIA PUBLICATIONS Ifote.—Tbe University of California PutlicationB are oflfered in ezclumge for the publi- cations of learned societies and institutions, universities and libraries. Complete lists of oalflptuhbelipcuabtliiocnastiaonnsd oofthtehreiUnnfiovremrastiitoyn,wialdldrbeesssetnhteupMoAnNrAeqGueEsRt. OFForTsHaEmplUeNIcoVpiEeEs,SIliTstYs PEESS BERKELEY, CALIFORNIA, U. S. A. AU matter sent in exchange should be THE EXCHANGE DEPARTMENT, UNIVERSITY LIBRARY, BERKELEY, addressed to CALIFORNIA, U.S.A. WILLIAM WESLEY & SONS, LONDON Agent for the seriesInAmerican Archaeology and Ethnology, Botany, Geology, Physiology, and Zoology. — BOTANVYo.lumWes. IA.(pSpe.tc4h1e8l)l,, HEdit(oprp.. 36P0r)i,ceIIpIer(pvpo.lu40m0e),,$I3V.50(;ppb.eg3i79n)n,incgomwpiltehtevdo.L V5,ol$u5.m0e0s. V, VI, vn, and VIII in progress. Cited as Univ. Calif. PubL Bot. Volume 1, 1902-1903, 418 pages, with 27 plates — - $3.50 Volume 2, 1904-1907, 360 pages, with 29 plates ..- ~ - 3.50 Volume 3, 1907-1909, 400 pages, with 14 plates - 3.50 Volume 4, 1909-1912, 397 pages, with 53 plates ~ 3.50 Vol 5. 1912-. 1. Studies in Nicotiana. I, by WUUam Albert Setchell. Pp. 1-86. December, 1912 V 1-25 2. Quantitative Studies of Inheritance in Nicotiana Hybrids. I, by Thom—as Harper Goodspeed. Pp. 87-168. December, 1912 _ 1.00 3. Quantitative Studies of Inheritance in Nicotiana H—ybrids. II, by Thomas ^ Harper Goodspeed. Pp. 169-188. January, 1913 _ 4. On the Partial Sterility of Nicotiana Hybrids made with N. sylvestris as a Parent, by Thomas Harper Goodspeed. Pp. 189-198. March, 1913 .10 5. Notes on the Germination of Tobacco Seed. I, by Thomas Harper Good- speed. Pp. 199-222. May, 1913 - .25 6. Quantitative Studies of Inheritance in Nicotiana Hybrids. Ill, by Thomas Harper Goodspeed. Pp. 223-231. April, 1915 .10 7. Notes on the Germination of Tobacco Seed. II, by Thomas Harper Good- speed. Pp. 233-248. June, 1915 .15 8. Parthenogenesis, Parthenocarpy and Phenospermy In Nico—tiana, by Thomas Harper Goodspeed. Pp. 249-272, plate 35. July, 1915 . .25 9. On the Partial Sterility of Nicotiana Hybrids made with N. sylvestris as a Parent. II, by T. H. Goodspeed and A. H. Ayres. Pp. 273-292, plate 3—6. October, 1916 ~ - - •^ 10. On the Partial Sterility of Nicotiana Hybrids made with N. sylvestris as a Parent. Ill,AnAccount ofthe Mode of FloralAbscissionintheFjSpecies Hybrids, by T.H. Goodspeed andJ. N. KendaU. Pp. 293-299. November, 1916 • .05 11. The Nature of the Fj Species Hybrids between Nicotiana sylvestris and Varieties of Nicotiana Talacum, with SpecialReference to the Conception of Reaction System Contrasts in Heredity, by T. H. Goodspeed dtaid R. E. Clausen. Pp. 301-346, plates 37-48. January, 1917 _ _ .46 12 Abscission of Flowers and Fruits inthe Solanaceae, with Special Reference to Nicotiana, by JohnN. KendaU. Pp. 347-428, 10 text figures, plates 49- 53. March, 1918 - 85 IS. CoDnatvriodlsloend.PolPlpi.na4t2i9o-n43i4n.NicAoutgiuasnta,, b1y91T8homasHarper Goodspe_ed and Pirie 10 14. An Apparatus for Flower Measurement, by T. H. Goodspeed and E. E. Clausen. Pp. 435-437, plate 54, 1 figure in text. September 25, 1918 .05 15. Note on the Effects of Illuminating Gas and its Constituents in Causing Abscission of Flowers in Nicotiana and Citrus, by T. H. Goodspeed, J. M—. McGee and R. W. Hodgson. Pp. 439-450. December, 1918 .15 16. Notes on the Germination of Tobacco Seed. Ill, Note on the Relation of Light and Darkness to Germination, by T. Harper Goodspeed. Pp. 451- 455. April, 1919 - - -05 CONTENTS PAGES No. 1. The Marine Algae of the Pacific Coast of North America. I. Myxophyceae, by William Albert Setchell and Nathaniel Lyon Gardner 1-138 No. 2. The Marine Algae of the Pacific Coast of North America. II. Chlorophyceae,byWilliam Albert Setchell and Nathaniel Lyon Gardner 139-374 Index 375-382 ;; UNIVERSITY OF CALIFORNIA PUBLICATIONS IN BOTANY Vol. 8, No. 2, pp. 139-374, plates 9-33 July 14, 1920 THE MARINE ALGAE OF THE PACIFIC COAST The second part of the Marine Algae of the Pacific Coast of North America, comprising- an account of the Chlorophyceae or Green Algae, succeeding an account of the Myxophyceae, is presented without intro- duction or explanation, pending the publication of the other two parts which are in advanced preparation. It is intended to issue with the completed volumes a statement as to the principles followed, methods used, territory covered, sources of information, material, etc., as well as to make acknowledgment to the various authorities, students and collaborators who have been of the greatest assistance in carrying out the long and laborious task. W. A. Retchell and N. L. Gauoner. m lai-Lcr UKin^ eiuier sepiaic V^-*^v piuviueu wiLii |jarLinuiiH, ctrs Liie Siphonocladiales) or destitute of septa (as in the Siphonales), and ranging in size from microscopic forms to individuals of more than a meter in at least two dimensions; cell walls varying in structure and composition, mostly of cellulose but sometimes largely of pectose, occasionally more or less externally mucilaginous, generally simple, moderately thick and structureless, but at times thick and variously stratified, occasionally incrusted with lime nuclei well developed ; chromatophores usually distinctly differentiated, of varying shape and number, often containing starch centers, or pyrenoids, and colored bj' chlorophyll and xanthophyll, the former usually in excess reproduction vegetative, by non-sexual spores, and by zygotes vege- ; tative reproduction by cell division, fragmentation, and by gemmae