842 



J. W. D\W80N ON A DIPLOXTLOX FROM NOVA SCOTIA. 



by cxtorniil murkiiigH,tlio number of kinds of gymnospcrmous fruits 

 and cryi>t<)}?'inn>UH HtrobilcH iwsociiitcd with tlicni, und tho grout 

 riingo of orgunization i)roHont('d by their HtcniH, indicato a consider- 

 able variety of j^encric and specifie tyi>eH, probably bridf^iiig over, 

 l)y means of the class of (lymnospcrms, tho }!;reat gap at present ex- 

 isting lietween the Angiospermous and Acrogenous trees, and giving 

 an amount of diversity to tho forests of the coal-])oriod of which wo 

 have as yet little conception. A further illustration of this is pre- 

 sented by the remarkable species of Conluitis recently described by 

 M. (jlrand'Kury, and which furnish another varied scries of (jymno- 

 Bpermous type. 



