OCEANIC DISPERSAL OF PLANTS. 303 



MSS. in Herb. Kew) ; and it is widely dispersed in the West Indies and Central and 

 South America, often on river-banks, and sometimes far inland, but also near the sea, for 

 Seemann's specimen from Panama is labelled "in maritimis." It has the ordinary 

 three-celled and three-seeded fruit of the order, but it is of large size and fleshy, and the 

 subglobose seeds are as much as one inch and a half in diameter, and the large embryo 

 with foliaceous cotyledons is enclosed in a large quantity of oily albumen. 



JTJGLANDEiE. 

 Juglans sp. ? 



Sea-shore at Palisadoes Plantation, Jamaica. 



The genus Juglans is widely dispersed in the northern hemisphere, and three or four 

 species occur in Mexico. The present fruit may belong to the genus Garya, which is 

 restricted to North America, including Mexico. 



PALM^E. 

 Manicaria saccifera, Mart. \ 



Sea-shore at Palisadoes Plantation, Jamaica. 



The number of species of Manicaria known is two or three, but the distribution of 

 Manicaria saccifera, Mart., and Manicaria plukenetii, Griseb. and Wendl. (Fl. Brit. W. 

 Ind., p. 518), assuming that they are really different species, is nowhere fully recorded. 

 Plukenet (Almagestum Botanicum, ii. p. 278), under Palma/pinus maritima barbarfensis 

 et jamaicensis, has the following note concerning the fruit of Manicaria saccifera : "Per- 

 rarum nunc fructum externo cortice denudatum habuimus ex Insula Barbados nomine 

 The Sea Apple: quem exinde admirabilem ejus externum involucrum adhuc retinentem, 

 Insula Jamaica? a se collectum, amice nobis ostendebat D. D. Hans Sloane." And Sloane 

 (Natural History of Jamaica, ii. p. 186) says in allusion to the same fruit: "This is 

 frequently cast up by the waves on the shores of this island, and is one of those fruits 

 thrown on the north-west islands of Scotland by the currents and seas." Whether the 

 palm which bears this fruit grows in either Jamaica or Barbados or not, is uncertain ; 

 but Grisebach had seen no specimens from the former island, and the name is not in 

 Maycock's Flora Barbadensis, and there are no specimens from either place in the Kew 

 Herbarium. Still, so much remains to be done in relation to the distribution of palms, 

 that it is quite possible it may exist in Jamaica, at least. Be that as it may, Manicaria 

 saccifera is essentially a maritime palm. Martius (Hist. Nat. Palm., ii. p. 141) says: 

 " Crescit pulcherrima Palma in sylvis densis aqua dulci vel subsala inundatis, ad ripas 

 fluminum Amazonum, Tocantius, Acara" aliorumque, in canali Tagipuru, in insulis depressis 

 Marajo, Caviana reliquisque omnibus per ostia maritima fluminum Paraensium sparsis ; in 

 interioribus terra? continentis non reperta." The seeds sent by Morris are unsound. 



