796 NOTES FROM THE BOTANIC GARDENS, SYDNEY, NO. XVI., 



tinctly shown in the floral leaves; the first leaves below the 

 inflorescence are frequently simple, next to the simple leaf follows 

 occasionally a leaf cleft to or nearly to the rhachis into two lobes, 

 and then follow, generally abruptly, the pinnate leaves. 



Mr. Boorman distinguishes two forms growins; tosrether in the 

 same restricted area; one is the tall tree described above, the 

 other is a small shrubby form 10 to 15 feet high, with consider- 

 ably smaller leaves, and a greater tendency to simple or lobed 

 leaves. The specimens look very distinct, but this is again 

 merely an instance of the protean character of Proteaceae; the 

 small form will eventually grow out into the tall form, and only 

 lall old trees seem to have the large pinnate leaves. The tree is 

 of special interest because it is one of tiie few links which con- 

 nect the flora of Australia with that of South America. 



HYDROCHARITACEiE, 

 Thalassia HEMPRiCHii(Ehrenb.) Aschers. New for Australia. 



Murray Island, Torres Straits(Charles Hedley; September, 1907: 

 and J. S. Bruce; June, 1910). 



Previousl}' recorded from the Indian and Pacific Oceans, from 

 the Red Sea to the shores of New Caledonia and New Britain 

 (Neu Pommern). 



In these Proceedings for 190y(Vol. xxxiv., p. 585) we published 

 a note on the fruit of a marine plant doubtfully referred to Cymo- 

 docea ciliata. This is the plant in question; the better specimens 

 received through the goodness of Mr. J. S. Bruce, of Murray 

 Island, by the kind intermediary of Mr. Hedley, enable us to 

 correct the mistake. We regret that, by an oversight, the mark 

 of interrogation was omitted on the Plate on which the fruit is 

 figured as Cyinodocea, though the query was not omitted from 

 the note. 



Together with the specimens of Thalassia, Mr. Bruce sent 

 excellent fruiting specimens of Enhalus Koenigii Tlich., (Enhalus 

 acoroides Steud.) a genus closely allied to Thalassia, hut distin- 

 guished from it chiefly by the long stalks of the fruits, which 

 ripen on the surface of the water. Both genera seem to be 



