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of basalt at the north end of Franklin Clove; the silvery-gray 

 thalli appearing very conspicuously against the dark rock. An 

 unusual Cladonia was C. clavulifera, forma subfastigiata. 



But the principal objectives of Miss Griffin's trip were: a 

 stand of about thirty persimmons, Diospyros virginiana, on the 

 edge of a swamp south of the Clove, which must be about the 

 most northern stand of the species; unusual forms of Lycopo- 

 dium complanataum , varieties flabelliforme, and chamaecyparis- 

 sus, as well as L. lucidulum, L. obscurum, var. dendroideum and 

 L. clavatum; and, most interesting of all, several thriving 

 colonies of Camptosorus rhizophyllns, growing on a talus of 

 broken small columns of the basalt rock of the Preakness- 

 Packanack Mountains area. This was the first time the writer 

 has seen the Walking Fern growing elsewhere than on limestone 

 or sandstone with a high lime content. But there is considerable 

 calcium in the Watchung basalts, as is evidenced by the forma- 

 tion of the numerous zeolites, including secondary crystals, of 

 calcite, crevices in this rock. It may be that enough calcium 

 leaches out of the ledges of small-columned basalt, above this 

 talus, to produce a soil condition to encourage the establish- 

 ment of Camptosorus. The fern seems to be as large and as well 

 fruited as on its more usual limestone haunts. 



The stand of southern white cedar, Chamacyparis thyoides 

 at the southwest corner of Franklin Lake, is interesting as one 

 of the inland stands of the species in northern New Jersey, and 

 would repay further study for possible associated plants of in- 

 terest, on another day when it is not so wintry. 



Raymond H. Torrey 



