212 TEANSACTIONS OF THE 



Leptogium phyllocarpum (Pers.) 

 and var. isidiosum (Nyl.) 



„ macrocarpum (Nyl.) 



„ dsedaleum (Flot.) 

 Leptogium adpressum (Nyl.) 



Cladonia fimbriata, var. tubseformis. 



Usnea articulata (Ach.) 

 ceratina (Schaer.) 

 Tills lichen seems to grow in great luxuriance. I have certainly 

 never seen finer specimens. 



Eamalina Yemensis (Ach.) 



Stictina fuliginosa (Dicks.), c. fr. 



Sticta damfBcornis (Ach.). Dr. J. Shaw. 

 Sticta aurata, var. pallens (Nyl.) 



Eicasolia Eavenelii (Tuck.) 



Parmelia caperata (Ach.) 



Parmelia Texana (Tuck.) 



Parmelia amplexa (Stn.), sp. nov. 



Thallus flavescenti-virescens, centro rugulosus, ambitu planus 

 lobatulus vel breviter laciniatus, parvus, arete adpressus (K vi- 

 rescenti-flavens), medulla alba (K — C — ), subtus nigricans; 

 apothecia carneopallida vel pallide flavescentia mediocria (latit. 

 2-6 mm.), receptaculo Isevi plerumque incurvo ; spores Snse, 

 •012— -016 X '006—008 mm. Corticola. 



This may be P. adpressa (Krph.), but the latter has only been 

 found in a barren state, and I have not seen specimens of it. 



Parmelia perforata (Ach.), c. fr. 



Parmelia revoluta (Flk.) 



Parmelia austro-africana (Stn.), sp. nov. 



SimiUs P. hypoclyst^ (Nyl.), sed medulla (supra), K — , dein 

 C. addito, leviter et sordide erythrinosa, at 0. seorsum — . Thallus 

 pallide fiavescens vel pallide flavescenti-virescens, subtus totus 





