FEB. 1907. FLORA SAND KEYS OF FLORIDA MILLSPAUGH. 235 



LOGGERHEAD KEY 



MARCH 19, 1904 



Caesalpinia crista (2479) 

 Cakile fusiformis (2472) 

 Calonyction album (2483) 

 Canavalia obtusifolia (2464) 

 Capraria biflora (2477) 

 Cordia sebestena 

 Euphorbia buxifolia (2475) 

 Hymenocallis caribaea 

 Ipomoea pes-caprae (2470) 

 Iva imbricata (2471, 2473) 



Melanthera nivea (2482) 



? Opuntia Dillenii (2476) 



P Portulaca oleracea (2480) 



8 Salvia serotina (2481) 



D Scaevola Plumieri (2469) 



Sesuvium portulacastrum (2468) 



F Sporobolus virginicus (2474) 



tf Suriana maritima (2465) 



% Tournefortia gnaphalodes (2467) 



~ Tribulus cistoides (2478) 



I Uniola paniculata (2466) 



This highest and westernmost key of the archipelago, and largest 

 of the Tortugas group, is completely reef-invested on its eastern and 

 western shores. It is about three quarters of a mile long by an eighth 

 of a mile broad, with a central plateau full nine feet above tide. 

 Although it has for years been occupied by a lighthouse and its 

 attendants, it is nevertheless notably free of homovectent plants, 

 Salvia, Cordia sebestena and Tribulus being the only species present 

 that might be considered to have been brought here by man. 



Its central plateau, like that of Bird Key, is entirely implanted 

 with a pure Suriana group, the individuals of which are about six feet 

 high. The vegetation of the islet presents no associations whatever, 

 all its species being elementally scattered subtropic, maritime "weeds. " 

 Even the usually associated Uniola and Euphorbia appear as far separ- 

 ated as the limits of the surface will allow. 



The lighthouse enclosure contains a Papaya, and several Coconut 

 and Geiger trees, the walk being bordered by two patches of Hymeno- 

 callis. The garden contained no flower-beds nor vegetable patches 

 at the time of Mr. Lansing's visit. 



