Harper: Observations on Taxodium 111 



tions. On the Savannah River it ascends just to Augusta ; on the 

 Ogeechee and its tributaries it terminates somewhere between 

 Louisville in Jefferson County and the Augusta Southern R. R. 

 in Glascock; on the Oconee it is common in Laurens and Mont- 

 gomery Counties, but terminates at or near the Central R. R. 

 bridge in Washington and Wilkinson; on the Ocmulgee it ascends 

 to Twiggs and Houston Counties ; on the FHnt to Macon County 

 am told), but not quite to the twin cities of Oglethorpe and 

 Montezuma ; and on the Chattahoochee I have seen it only in 

 Early County near Saffold, though it grows in low grounds near 

 the river at Columbia, Alabama, several miles farther up. On the 

 smaller rivers which rise below the fall line (and are therefore not 

 muddy), it ascends the Satilla to Bull Head Bluff or beyond, the 

 St. Mary's nearly to Its head at the southeastern corner of Okefin- 

 okee Swamp, the Withlacoochee to Lowmdes County, and the 

 Ochlocknee to Moultrie. (It is mostly in some of these smaller 

 •rivers, such as the Canoochee, Ohoopee, Satilla, Suwannee, Alla- 

 paha and Withlacoochee, that the puzzling intermediate forms 

 occur.) Near the coast, in the counties of Glynn and Camden in 

 Georgia and Nassau in Florida, this species occurs away from the 

 rivers in numerous extensive swamps, the character of whose flora 

 points strongly to the absence of the Lafayette formation. 



Its most frequent associates in Georgia are Hicoria aqiiatica 

 'Planera aquatica, and Nyssa aqiiatica (iV. tinijlord). 



Dr. R. Ellsworth Call'*' has published some interesting notes 

 on the occurrence of Taxodium disticJiuin in eastern Arkansas, in 

 which he says among other things : ''From the top of Crow^ley^s 

 'Ridge, looking either to the east or the west, at those points which 

 command the valleys of the St. Francis and the Cache, the cypress 

 areas can be readily made out by the observer. The tops of the 

 giant trees tow^er far above the heads of the intervening forests and 

 give one the location of the swamps for hundreds of square miles.'' 

 Some outlying stations for this species in the Edw^ards Plateau 

 of Texas (which includes Kerrville, mentioned in my previous paper) 

 have been described by Hill and Vaughan, f who say in part : 

 *' The occurrence of the cypress is a peculiar anomaly. This tree. 



% 



Rep. Geol. Surv. Ark. iSSg^: 198-200. 1891. 

 fAnn. Rep. U. S. Geol. Surv. 18^: 210, 211. 1898. 



