No. 454-] AA-ATOMl- OI- IHE CO .\ 1 ll, R A I . 



5. Cupressus. 



7. Libocedrus. 



8. Taxodium. 



9. Juniper us. 



In the XlMUm. . I n.u m 1 s ,s pu n .d 

 any sense strictly coterminous with the first, but 1 

 to nukt a t uih, is it uul. whu J.\ iIhk . i 1 



nectuii^ link W ithm the elc\cn sp, c k s ,,t \bi 

 three important phases are presented : ( i ) Kesiii i 

 on the outer lace of the summer wood, (j) lesm 

 and formin*^ cvsts, and (3) resm cells enlirelv wa 



noted as expiessions of develoi)mental i)lKises in su 

 the occurrence of cysts represents the hi.^liest p- 

 Kcnus Jsuga is ck)sd\ lelated to Abies m tlu -h.i 

 lated lesm cells on the outer fate ot tlu summu 

 in the toimation of resm c}sts, but it olniousK 

 nor position because (i) of the i^ieatei abuiidaiui 

 individual celks, and (2) the occuii en( e ol (k hnitc > 

 resm cells without the formation ol c\ sts. 1 hi 

 extended by those genera m which dehnite lesni p.is 

 the simple cysts, since the latter aie (onveiubli 11 

 by easy and natural transitions. Both l'>eudoisu: 

 occupy equivalent positions because tbe\ not imii} 

 passa^^es of an equal dej^ree ot dexelopuKnt. In.t 

 suiMxal of the isolated lesin cells on tn. outei tu 

 mei ur)od Iheii afhnities aie theiU<.ie diiedl 

 and Tsu-a on the lower side, but on the upper s 

 ance is ^Mth Puca. uhich puscnts a ^eI^ sumlai 

 what hit^her org-anization of the icsin i)assa,L,e at 

 ()bliteratk)n of the isolated resm cell. \ et a^am. 

 of the resm passage in Picea at once conncUs the 



