82 



sections, but are there mostly covered by a layer of material of vari- 

 able thickness derived from the Glacial Drift. In places this layer is 

 very thin, and sandy soil appears. On Long Island the terminal 

 moraine of the glacier occupies a position marked by a range of hills 

 extending throughout its whole length, at an average distance often 

 miles from the Atlantic. South of these hills, which have been appro- 

 priately called the backbone of the island, sandy plains prevail, the 

 material composing them having been formed partly from the modi- 

 fied drift of the hills and partly from the underlying Cretaceous strata. 

 In Suffolk County these plains occupy a considerable surface,' and 

 their flora has been very thoroughly worked up by our fellow mem- 

 ber, Mr. E. S. Miller. The object of this paper is to call special 

 attention to the number of characteristic plants of the New Jersey 

 pine barrens which have already been detected in Staten and 

 Long Islands, and which are recorded in the pamphlets " The Flora 

 of Suffolk County," and " The Flora of Richmond County," and their 

 addenda. . 



First we will consider those species hitherto detected on the Cre- 

 teceous soils of Staten Island, and not found on the Drift • there are 

 34 of these plants, and they are as fo\\o\xs :—Mngno/ia ]r/auca L.- 

 Hudsonia encoides, L.; Ascyrum Crux-Andreae, L.; Arcnaria squar- 

 rosa Michx.; Folygala luiea,^..; Tephrosia Virginiana, Y^x^- Dcs- 

 modium laevigaium, DC; Desmodium viridiflorum, Beck • ^Rubus 

 cuneifohus, Pursh.; Crataegus parvifolia, Ait.; Eupatormm rotitndi- 

 Johum,!..; Aster nemor alls, Ait.; Aster concolor, L.; Chrysopsis Mar- 

 tana Nutt.; Gnaphalmm purpureum, L.; Gaylussacia dumosa, T & 

 G.; Andromeda Mariana, L.; Kalmia angustifoHa, L.; Ipomoea pan- 

 dnrata Utytx; Phlox subidata, L.; Asdepias obtusifolia, Michx- 

 Euphorbia Ipecacuanhae L.; Querais nigra, L.; Querais prinoides, 

 \\ill.; Qiiereus Fhellos, L.; Spiranthes simplex, Gray.; J uncus seir- 

 poides. Lam., var. macrostemon j Xyris flexuosa, Muhl Chan • Cv 

 perus cylindricus, N. L. B.; Stipa avenacea, L.; Glyceria 'obtusa/Yx\n ' 

 Fame urn verrncosum, Muhl.; Andropogon macrourns, Michx ■ Lvco- 

 podium inundatum, L.. var. Bigelovii, Tuck. • '' 



CnnntV^'^'n ^'''^ following four have not been detected in Suffolk 

 Coanty .—Desmodium viriaiflorum, Beck.; Rubus cuneifolius, Pursh • 

 Ipomoea paiidurata, Meyer.; Fhlox subulata, L " 



In addition to the above list, however, the following sixteen addi- 

 tional species have been detected in Suffolk County -Drosera Ai 



/ 



'^pifoliiim 



E.^a,orIu,n UucCefis, T. S: G.; ^«/./..,i»; «}i T.-^^XX 

 IMS, Alt.; Solidago pubcruhi, Nutt.; Chrysopsis falcakl, Ell • £ll 



Le l^oMi.- Cuprcssus lhyo,d,s, L.; Jwuus pelomrpus, E. Meyer- 



I'roLultrT''' " »"l«'ocarta, forr; SpoJJus 



Thus it appears that 34 of these characteristic pine barren plants 



Sd in tZll Co Tf \ t """^ 'll^' f "! "'™ have beefde! 



