Figueiredo, Estrela <br/><br/>
The pteridophytes of São Tomé and Príncipe (gulf of Guinea). 

 - p. 41-66. 
<br/><br/> Bulletin British Museum natural history (Bot.) 28(1) p. 41-66 
<br/><br/><label>Index Terms--Genre/Form: </label>--Offprints