204 



University of California Publications in Botany [Vol. 6 



Albemarle and Charles (267). The first method suggested was there- 

 fore followed, and the results are given in Table III. The figure 

 forty-five which appears at both intersections of Narborough and 

 Albemarle is thus the mean of the 71 per cent of the Narborough flora 

 recurring on Albemarle and of the 20 per cent of the Albemarle flora 

 found on Narborough : that is, half of seventy-one and twenty. 



J3 



O 



45 



Narborough (59) .... 



Albemarle (205) .... 



•Jervis (22) 3 



Dimcan (51) 16 



Barrington (40) 31 



Seymour (47) 15 



James (153) 36 



Indefatigable (76) .. 21 



Charles (267) 39 



Hood (59) 25 



Gardner (33) 16 



Chatham (231) 35 



Abingdon (50) 26 



Bindloe (42) 30 



Tower (19) 26 



45 



32 



35 

 34 

 32 

 43 

 41 

 43 

 36 

 30 

 42 

 42 

 34 



90 



3 



32 



3 a 



Q CQ 



16 31 



35 34 



M 



15 

 32 



26 

 17 

 23 

 26 



47 



25 

 22 

 30 

 29 

 17 

 15 



26 17 



.... 28 



28 .... 



32 37 



30 29 



32 33 



26 

 39 



41 37 

 33 31 



42 35 

 41 38 

 21 24 

 15 26 

 26 39 



36 21 

 43 41 



23 26 

 32 30 



35 



32 

 29 33 



26 



?,'). 



37 40 

 29 33 



39 



32 



40 



30 



12 37 



34 



39 35 45 



14 34 36 



18 21 28 



22 30 29 



O 



39 

 43 



47 

 41 



40 

 40 



o 



M 

 25 

 36 

 25 

 33 



37 31 

 37 29 



33 



30 



.... 41 



41 .... 



53 42 



48 44 



42 26 

 34 26 

 36 35 



C 

 u 



16 35 



30 42 



22 30 



42 41 



35 38 



34 39 



12 35 



37 45 



o 

 a 



< 

 26 

 42 

 29 

 21 



42 

 26 



— c 

 pq H 



30 26 



34 

 17 

 15 



22 

 15 

 26 

 24 26 39 



14 18 22 

 34 21 

 36 28 



30 

 29 



34 36 

 26 35 



In this table the three highest numbers appearing in each hori- 

 zontal row have been indicated by heavy type. Charles, the island 

 with the largest number of species, keeps its lead in high numbers 

 in its vertical column, but Chatham begins to fall behind, and Albe- 

 marle still more so. It is also apparent at a glance that geographical 

 position is not without influence. The group of southeastern islands, 

 appearing in the third framed square in the table, particularly evid- 

 ence a close relationship to one another : of the twelve high numbers 

 relating to them, nine are confined to themselves. The distinct 

 northern group also has three, out of the six numbers appearing in 

 its frame, of the "highest" or bold-face type. Narborough and Albe- 

 marle, constituting a western group, show a higher common figure 

 (45), than either does with any other island. Only the central group 

 has miscellaneous affinities in all directions. 



