Till: FLORISSANT LAKE BASIN. 33 



has seen :it lea>t two thousand specimens. The Juglandacese are repre- 

 sented li\- single specimens of I'terocarvn aineric:in:i and Julians thermalis, 

 besides l\vo other species of . I uhlans, one of them European, thre.- of ( 'arya, 

 all European, and one Engelhardtia, also European. The Cupuliferae show 

 one species each of ( )strya and Castanea, three of Carpinus, one of them 

 European, and seven of Quercus, of which five are European species. The 

 Slyricacese are ihe next most abundant type after Planera, being represented 

 hv no les> than fifteen species of Myrica, of which six are European. Of 

 P>etnlace;e two species ,if Meiiila occur and two of Alnns, one of the latter 

 European. Salicaceie are tolerably almndant: there are four species of 

 I'opuhi-, all now regarded as European, though Lesipiereiix first looked on 

 them as new : and two pei-iili.ir species of Salix. besides tour identical with 

 European species. Finally, there are one or two undetermined plants in 

 this group represented liv parts of flow-is or seeds. 



Aiiiono the < loniferae there is con.vderable variety, eight species occur- 

 ring, of six genera, most of them represented in the European flora. There 

 are, first, two species of I'inus, one Eni-opean; a species of' \Viddringtonia; 

 well preserved branches of a European Taxodimn; abundant remains of a 

 European Glyptostrobus ; a couple of leaves of a European Podocarpus; 

 as well as two species of' Seipioia, one European, the other indigenous. 

 The presence of the last-named genus is also well attested liy their cones 

 and by the remains of gigantic silicitied trunks in an erect position. 



Filially, in the lower orders of plants the following- have lee:i found: 

 ( )f the I'alm.T, a large specimen of a Sahal and a fruit referred to I'almo- 

 carpon ; of the Arace;;-. a species of A.COrus, first described from Spit/.en- 

 lierg; of' the Tvpliace;e, finelv presei-ved lea\es of a Typha ; of the Xaiad- 

 acc:e, t\\. - -\ 1 'otaino-eton and on. -of Xajadopsis; of the Leinna- 



0686, a species of Eemna; of' the (i ran line; e. fragments of leaves of I'liraLT- 



mites; of Eilices, numerous specimens of ti\'- genera, Sphenopteris, Adiun- 



tites, l.astra'a, I'teris. and 1 )iplax.ium. the last a European species; of Khiz- 

 OCarpse, manv specimens of two species of Salvinia : of .Musci, one species 

 each of Eontinalis and I lypniim, and of Characese, two specimens of a 

 '. 'hara. 



According to Mr. Lesion-remix, such an assemlila^e of plants indicates 

 a climate like that of the northern shores of the (iulf of Mexico at our epoch. 

 "The preponderance of conifers, ,:f shrults, ... of trees of small 



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