NATURAL AREAS AXD REGIONS 



449 



plants, some of them 



garded as calciphile?. = 



northern or souther:- and some 



chiefly- confined to -^..._ ^, on bluffs 



along the Warrior River a few miles 



above T - -i. See Jour. Eluka 



Mitchell .- ..37: 153-160. 1922. 



The largest number of species there 



bloom early in April. On rocky shoals 



in the river near by were formerlv 



Hymenocallii : ^ 



local species. 



gradually obliieratea uy 



and dams to assist nav.__... ^ ... ... 



last 2-5 or 30 years, and there are none 

 left now within 50 mi. of the fall line 

 at Tuscaloosa. (.See Torre^a. 14: 14*^1>^. 

 1914. i The moUuscan 



shoals was of course pr_.. . . . 



out at the same time. 



Eight Acre Rock, a few miles above 

 Tuscaloosa is another interesTine SDOt 

 in the same co^Jinry, an : ^ 

 white sandstone with sev- 

 plants on it. such as L 

 inum terc''- " •■ , ^ ' . ..i, ■. i .. — ... 

 and Crot . a few miles 



northeast oi \aiicc. 



5. The Coosa Valley region is the 

 southwestern extremity of the great 

 Appalachian Valley, which extends with 

 some modifications all the way to Ver- 

 mont. It embraces a cor.-' 

 ety of geology, soil, i , 

 vegetation, in narrow longitudinai oeits. 

 The rocks are mostly limestone, shale. 

 chert and sandstone, the first two 

 usually making valleys and : ' 



ridges. The soil is above - 

 in fertility, and a good deal of it ha? 

 been under cultivation for several gen- 

 erations. Much of the pine, especially 

 longleaf, has ■ -. and a little of 



it has been tur_ - recent ye?.rs. 



The commonest trees are as : 

 Large trees: Loblolly pine, 1. :-_-.-: 

 pine, shortleaf pine, sweet gum. post 

 oak. red oak, black-; ' : ' " " - 

 landica) willow oak. ' 

 pine, white oak, water oaK, rea mapic, 

 cedar. 



Small trees : Dogwood, black willow, 

 sweet bay ^- " -Jini'arw', iron- 



wood, and ho; 



The most interesiiui; plants ar 

 on limestone outcrops, such as 

 Alabamensis near the south end of the 

 valley in Bibb County. There are a 

 few si)ecies more characteristic of the 

 coastal plain, such as - 



(nearly throughout . -^ . - 

 Shelbv Countv. and Virginia cr. 

 ( Wood ---•-■•--•-■■ T \ spikerus 

 charts : eak rush 



spora axiUai'i<!:, pipewort (,£----:..-. 



.1 



-a 



n 



on sunny slopes, u- 



are 



The 



-t 



f 



n 



rel map.e. :, 



mockernut ...■. • r. 



the small trees .." . i. 



with . 

 : of the 



L : .- ..... ., :...v.. . .a a few 



hours' walk, and others are more acces- 

 - ' ' from r "" ■ - • ^^ 



ver, it p 



out at leas: 



7. The P , - ex- 

 tends northeastward to Pennsylvania. 

 : - ' -.aracterized by r — " ' - r- " d 



orvst-illine .v 



loam, stony loam, slate loam, and 



-'■•■ loam. The forests hav-^ t--^!! 



i for fuel and other c 



"est tref^s sre I'^r^sleaf 



i 



pme. . 

 sweet gu:... : . 

 oak. post oak 



nut 

 D 



,..,.. ..- .....e of special interrst in 

 this reffion. except a few -e 



.1 



ocaHis 



