70 



tree, (Tcrminalia Catappa L.), Cocos nucifcra L. and Anona mur- 

 icata L. were the arborescent species collected by the writer on 

 this island. Ipomoca Pcs-caprae Sw. is the character plant of 

 the low beaches, while Lantana trifolia L., Solatium torvum Sw., 

 Solatium Jamaiccnsc Mill., Bidens leucantha Willd., and Wedclia 

 camosa Pers. are species that have withstood destruction from 

 cattle. The marshy places of the island support Mariscus rufus 

 H.B.K. and a sedge, Fimbrisiylis spadicea Vahl. 



Located at the extremity of the peninsula of land between 

 the east and the west harbors is an old abandoned fort. The 

 rocks immediately in front of the grass-grown sward about the 

 fort are honeycombed by the waves. On these rocks projecting 

 over the sea and in storms wet by the spray that is tossed up 

 from beneath, a few plants seem to thrive, viz., Wedclia camosa 

 Pers., Coccoloba uvifera L., Ruellia tubcrosa L., Crotalaria incana 

 L. and Plumeria sp. Hanging over the rocks and lying pros- 

 trate on the ground, Borrichia arborescens (L.) DC. completes the 

 list of observed strand plants. 



Little has been done on a comparative study of the floras of 

 the several Bahama islands and that of the Greater Antilles. 

 Our knowledge as yet is very fragmentary and this article is 

 presented as in part a contribution to a comparative study of the 

 flora of the West Indies. 

 University of Pennsylvania. 



OBSERVATIONS ON ETIOLATION 

 By Carlton C. Curtis 



The position recently taken by Dr. MacDougal * as to the 

 action of light upon growth must find ample support from the 

 results obtained in every laboratory. I doubt not that it is a 

 common experience that better illustrations of etiolation are ob- 

 tained under feeble illumination than in darkness. It has always 

 been a source of surprise to me to note the amount of light that 



* Influence of Light and Darkness on Growth and Development. Mem. N. Y. 

 Bot. Garden, 2: — . 1903. 



