Hale, Mason E <br/><br/>
A revision of the lichen family Thelotremataceae in Panama 
Mason E. Hale, Jr 
 - Washington  Smithsonian Institution Press  1978 
 - iii, 60 p. : ill. ; 27 cm. 
 - Smithsonian contributions to botany  Number 38 .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 57-58. 
<br/><br/><label>LCCN: </label>77-0608159 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thelotremataceae<br/>Lichens--Panama