viii INTRODUCTION 



Neetria Lantanae Seaver (p. 485) 



Hirneola coffeicolor Berkeley (p. 488) 



Marasmius bermudensis Berkeley (p. 488) 



Marasmius praedeeurrens MuitIII (p. 488) 



Marasmius Sabali Berkeley (p. 488) 



Pleurotopsis niduliformis Murrill (p. 488) 



Tyromyees graminicola Murrill (p. 488) 



Agarieus alphitopborus Berkeley (p. 488) 



Agaricus belietus Berkeley (p. 488) 



Boodlea struveoides M. A. Howe (p. 496) 



Cladophora Howei Collins (p. 497) 



Cliaetomorpha minima Collins & Hervey (p. 498) 



Triehogloea Herveyi Setebell (p. 511) 



Nitophyllum Wilkinsoniae Collins & Hervey (p. 517) 



Chondria curvilineata Collins & HerA^ey (p. 519) 



Chondria polyrhiza Collins & Hervey (p. 520) 



Lophosiphonia Saecorhiza Collins & Hervey (p. 521) 



Dasya Collinsiana M. A. Howe (p. 524) 



Dasya spinuligera Collins & Hervey (p. 525) 



Ptilothamnion bipinnatum (Collins & Hervey) M. A. Howe 

 (p. 525) 



Spermatbamnion maeromeres Collins & Hervey (p. 526) 



Callitbamnion Herveyi M. A, Howe (p. 528) 



Seirospora purpurea M. A. Howe (p. 529) 



Ceramium leptozonum M. A. Howe (p. 531) 



Halymenia bermudensis Collins & Howe (p. 533) 



Halymenia pseudofloresia Collins & Howe (p. 533) 



Halymenia eebinopbysa Collins & Howe (p. 533) 



Dudresnaya crassa M. A. Howe (p. 534) 



Dudresnaya bermudensis Setcliell (p. 535) 



Nemastoma gelatinosum M. A. Howe (p. 536) 



Melobesia bermudensis Foslie (p. 538) 

 Tbe number of native species known, tbose tbat have reached Bermuda 

 independently of human activities, at least here so regarded, and have per- 

 petuated themselves, including the foregoing list of endemics, is as follows : 



Species 



Flowering plants 146 



Ferns and fern allies 19 



Mosses and hepatics ■. . . . 51 



Lichens 80 



Algae 238 



Fungi at least 175 



Total 709 



