26 Trails. Acad. /ScL of St. Louis. 



A rather full annotation of the habitats is given with a view 

 of stimulating amateur collecting and thus securing larger rep- 

 resentation of the Lichen flora. For this reason the common 

 name, if specific enough, has been given preference.* 



SERIES GYMNOCARPI. 



TRIBE PARMELIACEI. 

 Family Usneei. 



Ramalina. 



1. Ramalina RiGiDA, (Pers.) Nyl. 



Common on dead oak. 



2. Ramalina rigida, var. montagnaei, Tuck. 



On water oak. 



USNEA. 



3. USNEA B AREATA, (L.) Fr. 



On palmetto; cypress; persimmon. 



4. USNEA BARBATA, Var. FLORIDA, Fr. 



On dead cypress ; water oak; scrub oak. 



5. USNEA BARBATA, Var. HIRTA, Fr. 



Family Parmeliei. 



Parmelia. 



6. Parmelia cetrata, Ach. 



Common on pine stump; dead cedar; cypress. 



7. Parmelia crinita, Ach. 



Common on dead oak. 



♦ The following annotations may be of service: Gum, Nyssa; pine 

 stump, P. palustris; persimmon, Diospyros; pear, Pyrus communis; mul- 

 berry, Morus rubra; hickory, Gary a; pine, Piwws; chinquapin oak, Q. prU 

 noides; oak, Quercus; plum, PrwwMS (cultivated); linden Tilia sp.; thorny 

 locust, Qleditschia triacanthos; wild cherry, Primus serotina; live-oak, 

 Q. virens; magnolia, ilf. grandiflora; palmetto, Sahalt Serenoa; cypress, Tax- 

 odium; willow oak, Q. Phellos; scrub oak, Q. sp.; saw palmetto, Serenoa 

 serrulata; black oak, Q. tinctoria9; crape myrtle, Lagerstroemia Indica; red 

 oak, Q. rubral; blue gum, Nyssa aquatica; red cedar, Juniperus Virginiana. 



