384 



University of California Publications in Botany [Vol. 8 



PAGE 



Family 13. Chnoosporaceae 552 



31. Chnoospora 552 



Order 3. Desmarestiales 554 



Family 14. Myriogloiaceae 555 



32. Myriogloia 556 



Family 15. Desmarestiaceae 558 



33. Desmarestia 559 



Order 4. Chordariales 570 



Family 16. Chordariaceae 571 



34. Chordaria 571 



35. AnaHpus 575 



36. Gobia 576 



Family 17. Coilodesmaceae 577 



37. Coilodesme 578 



38. Phaeostrophion 585 



Order 5. Dictyosiphonales 586 



Family 18. Dictyosiphonaceae 587 



39. Dictyosiphon 587 



Order 6. Laminariales 590 



Family 19. Chordaceae 591 



40. Chorda 592 



Family 20. Laminariaceae 593 



Tribe 1. Laminarieae 594 



41. Laminaria 594 



Tribe 2. Cymathaereae 606 



42. Pleurophycus 606 



43. Cymathaere 608 



Tribe 3. Agareae 609 



44. Costaria 609 



45. Thalassiophyllum 613 



46. Agarum 614 



Tribe 4. Hedophylleae 616 



47. Hedophyllum 617 



48. Arthrothamnus 619 



Family 21. Lessoniaceae 621 



Tribe 1. Lessonieae 621 



49. Dictyoneurum 621 



50. Nereocystis 623 



51. Postelsia 624 



Tribe 2. Macrocysteae 626 



52. Macrocystis 626 



53. Pelagophycus 629 



Tribe 3. Lessoniopseae 631 



54. Lessoniopsis 631 



Family 22. Alariaceae 633 



Tribe 1. Alarieae 633 



55. Pterygophora 634 



56. Alaria 635 



Tribe 2. Ecklonieae 645 



57. Eisenia 646 



Tribe 3. Egregieae 647 



58. Egregia 647 



