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times they are almost quite roundish (fig. 34). The colour of the 

 plant also differs, as the rocky-form is deeply red-coloured in 

 contrast to the fresh green colour of that of the sandy shore. 

 At the base the stem is surrounded by a thick uneven cork-like 

 mass. 



Philoxerus vermicularis (L.) R.Br., of which the mode of growth 

 quite corresponds with that of Sesuvium, often occurs together with 

 this; further, Euphorbia huxifolia Lam., Stenotaphrum americanum 

 Schrank, Paspalum distichum Sw. and several other species may 

 be found on rocky coast. As will be seen it is chiefly the same 

 species as found on the sandy shore. 



Inside these lower herbaceous or only partly ligneous species 

 several larger and smaller bushes gradually make their appearance. 

 At Judiths Fancy on the north side of St. Croix, a very exposed 



Fig. 34. SeHuvium portulacastrum L. from rocky shore (about ^h nat. size.) 



locality where the foam of the surf is often tossed far into the 

 land by the trade-wind, Borrichia arborescens D. G. was thus found. 

 It was growing in cracks of the rock with a little clay and gravel 

 into which its rooting branches could fix themselves. It has small, 

 fresh-green, obovate-oval, thick leaves and was here only 1 — 2 feet 

 high; further, Jacquinia armillaris L. was found; it was about 

 1 foot high and had stiff erect, folded yellow-green leaves and 

 white flowers. Also Tournefortia gnaphalodes occurred here on 

 rocky coast and several other bushes, e. g. Sccevola Plumieri, from 

 the sandy beach. 



Further west at Saltriver the shore slopes up more or less 

 sharply from the sea, and the rocks are here covered by a rather 

 low but extremely dense copse vegetation (fig. 35). The North- 

 side Road here winds through the copse, so that there were ample 

 opportunities of examining its composition. Nearest the sea but 

 yet at some distance from it Coccoloba uvifera occurred, as the 

 first outpost. Shaped like an espalier it expands itself prostrate on 



