'J('.(') I'LANT I.II'K OF AI,\I!\M\. 



pine-banon streams are inhabited by a formation of bark liclicns, wliicli 

 have tht'ir liliny thalbis more or less deeply einhrdded in the smooth 

 bark ot hollies, wax myrtles, magnolias, and reel l>ay (I'l^rsea), such 

 being the favorite sites of Gb/phis avharlana, a large array of species 

 of Arthonia and (Iraphis, Opcf/raphd trihuhnhs, nearly every one of 

 the species Trypet helium and Thelotrenni enumcratiMl in the catalogne, 

 and most of Pyrenula. also of — 



(lyrostomum nciiphulifiriini, Biiellia niihixtntumiim, 



liudllit parasei'ia, Biatora niiff'iistt — 



lUieUia suhdisciformia, 



all of a strictly southern distril)ution. Species with a more devclojK'd 

 crustaceous, granular, or agglutinated foliaceous thallus, i)articularly 

 the Southern Heterotheciums, prefer in similar localities the rough 

 bark of old trees. Such are: 



Heterotheciiim leiicoxanihinn. Punnaria moli/bdaea. 



Heterothecium pachycheihiin. rannaria nifjrocinvta. 



Heterotheciiim domingense. Phijucia criapa. 



Heterothecium tuberculosuvi. I'yxinc aorediata. 



Pertuaaria sp. Pyxine picta. 

 Colltvia vigreaccna hioplaca. 



The rough bark of hoary live oaks and of the laurel oak, frequently 

 covered with mosses, is also inhabited by — 



Chiodevton rubricinctum. Slicta (jnercizan-s. 



Sticta aurata. Peltigera polydactyla. 



At the base and on the roots of the live oak near the damp ground 

 abound among mosses the webby clusters of the filamentous alga-like 

 thallus of Coenogoiiium interpositnin. In more oi)en and drier situa- 

 tions the trunks and limbs of snialler trees are the home of — 



J'armrUa tiliacea, Ramalina laerigata, 



Parmelia saxalilia, RamaJina calicaria, 



Parmelia perforata, Cetraria ftndleri, 



Pliyacia comoaa, Uanea barbuta — 



Theloachiatea chryaopthalmus flari- 

 cana, 



the last in its several varietal forms. 



In the hunud coast plain lichens inhabiting dead wood are frequent, 

 such as — 



l.ecanora punicea. Lecanora varia. 



Lecanora anbfiiaca. Ilinodhia Jlavonigella. 



Lecanora pallida. Caliciiim albo-nigruvi. 



The most sterile patches of loamy sand are frequently covered with — 



Cladonia leporina, Cladonia rangiferina alpeatria, 



Cladonia mitrula, Baeomyces roaeus; 



and in shady woods, on decaying stumps and rotten trunks, Cladonia 

 piilchella and Cladonia (jraciUs are common. 



