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330 Harper: Flora of Middle Georgia 



I have not attempted to make all the above lists complete, and 

 have purposely omitted from them several species which are rare 

 or not characteristic of any of these areas. As my observations in 

 this region have not extended over the summer months, I have 

 doubtless omitted many species which are characteristic of the sev- 

 eral areas, especially in the first group, that of hydrophytic plants. 



In this connection it might be of interest to note what plants do 

 not occur in middle Georgia. The genera Lycopodium and Poly- 



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gala, for instance, which are represented by several species both 

 in south Georgia and in the Northern States, seem to be wanting in 

 middle Georgia. Some species of these two genera inhabit the 

 northern forests, while others are found mostly near the coast, and 

 the northern species do not seem to extend quite so far south, or 

 the coast species so far inland, as middle Georgia. Also the gen- 

 era Xyris, Eriocaulon, Lilium, Iris, Limodornm, Cast alia, Sarracenia, 

 Drosera, Triadenum, Proserpinaca, Myriophyllum, Bartonia, Lim- 

 nanthemum and Utricidaria, which are represented north and 

 south, seem to be rare or absent in middle Georgia. The same 

 might be said also of many species of several other genera, such as 

 Rhynchospora, Ludzvigia and Sabbatia. The Orchidaceae, Hyper- 

 icaceae and Asclepiadaceae are represented by fewer species in 

 middle Georgia than in other parts of the country. 



Below I append an annotated list of some of the more rare or 

 noteworthy species of this region which have come under my ob- 

 servation. As no topographical map of the region of my explora- 

 tions in middle Georgia has yet been made, the altitudes given 

 below are only approximate, but it is believed that none of them 

 are more than 50 feet in error. 



POLYPODIUM VULGARE L. Sp. PI. IO85. I 753 



There is a station for this species on the south side of Bobbin 

 Mill Creek, Clarke Co., where it grows on the brow of a high 

 granite cliff and some adjacent smaller rocks, in company with its 

 congener, P. polypodioides. The altitude is about 620 ft. This is 

 probably the southern limit of P. vidgare in eastern North America. 



Poa brevifolia Muhl. Gram. 138. 18 17 

 In rich woods along Bobbin Mill Creek, flowering in March 





