64 



Proceedings of the Ohio State Academy of Science. 



Homalocenchrus ory- 



zoides 

 Agrimonia parviflora 

 Geum canadense 

 virginicum 

 Cicuta bulbifera 

 Sium cicutaefolium 

 Erigeron canadensis 



Erechtites hieracifolia 

 Scutellaria lateriflora 

 Lycopus virginicus 

 Mentha arvensis cana- 

 densis 

 Gerardia paupercula 

 Viola blanda 

 Echinochloa walteri 



Ground cover. 



Bartonia virginica 

 Sphagnum cymbifolium 

 parvifolium 

 acuti folium 

 Pallavicinia lyellii 

 Eleocharis acicularis 

 Amblystegium varium 

 kochii 

 riparium in 

 small pools 

 Aulocomnium palustre 

 on ground and in 

 pools 

 Thuidium virginianum 

 on base of tree 

 trunks 



recognitum on 



ground 



delicatulum 

 padulosum 



Pylaisia intricata on 



base of tree trunk. 

 Cephalozia connivena 



lunulaefolia 

 These two small Hepa- 

 ticae thickly cover small 

 patches of ground in the 

 tree zone in the north- 

 eastern part of the island. 

 They are generally asso- 

 ciated with Pallavicinia 

 lyellii. 



Brachythecium plumosum. 

 Spirogyra sp. 

 Xaucoria paludosella 



Badhamia papaveracea on leaf of Osmunda regalis and on 

 a twig in a pool. 



The entire island is in a condition of transition tending 

 toward maturity as expressed in a mesophytic forest climax 

 society of deciduous trees. This is shown in the forest zone by 



