100 Lloyd and Tracy: The insular Flora 



CJuysoma pauciflo. 

 Cat and Ship Islands. 





On dry sand hills, 



\Clirysopsis Mariana (L.) Nutt. Occasional on Cat Island. 

 Eclipta alba (L.) Hassk. Common on wet, sandy soil on the 

 larger islands. 



\Erechtites hieracifolia (L.) Raf. A single locality on Hog 



Island. 



■pens A 



not before reported from east of Texas. 



*Gnaphalium purpureum L. Common on Cat and Breton 

 Islands ; a single plant observed at Port Eads. 



Helenium temdfoliwn Nutt. Abundant at Port Eads, but not 

 observed elsewhere. 



Heterotheca subaxillaris (Lam.) Britton & Rusby. Occasional 

 on Cat Island. 



\Iva frutescens L. The most common shrub on all low, 



sandy islands. 



Walt 



Common on Breton Island ; occasional on 



Sam Holmes, Hog and other sandy islands to the southward. 



f L eptilon 



beaches. 



Common on sand or shell 



. Hnifolium (Willd.). Occasional on Cat Island. 



fP/uc/iea camphorata (L.) DC. A few plants on Bird Island 

 and at South Pass. 



P.foetida (L.) B.S.P. Common on Cat Island. 



* J tSohdago sempervirens L. Not collected in flower, but 

 presumed to be this plant. Breton Island. 



Sonchus oleraceus L. Common on shell beaches, Sam Holmes, 

 Sundown and other islands. 



Trilisa odoratissima (Walt.) Cass. Abundant on Cat Island. 

 * \ WiUugftbaea scandens (L.) Kuntze. Common on mud 

 lumps, occasional on Cat and Breton Islands. 



strumarium L. A single plant, on Breton Island. 



Literature 



A very full list of references to the literature dealing with ecology 

 will be found in Kearney's paper cited below. 



? Xanthiu >n 



esen 



La 



Rev. Gen. de Bot. 12 : 434-446. ! 9 oo 



