THE PLOEA HONGKONCtENStS. 41 



PtychooMlm septemnervis (PI. Meyen. t. 12, B), which is a native 

 of the Philippines, represents a distinct plant, and, though with 

 wider leaves, doubtless much nearer the Ceylon and SUhet species 

 than the present. 



40. HalophUa ovata, Gaud. ; Miq. Fl. Ind.Bat. iii. 230. 



A sterile specimen of this obscure plant, gathered by the late 

 Dr. Harland in Kau-lung Bay in 1856, is in my herbarium. 



41. Lemna minor, Linn. ; Koch, Syn. Fl. Germ. ed. 3, ii. 590 ; A. Gray, 

 Man. Bot. N. Un. St. ed. 5, 479. 



In pools everywhere. Found in stagnant water throughout 

 the whole world, except in the very coldest regions. 



*Pandanus odoratissimus, lAnn.fil.; Kunth, Enum. Plant, iii. 94. (= 

 P. verus, Rtimph. ; Kurz in Seem. Joum. Bot. v. 125.) 

 Common along the sea-shore, and often used for making hedges. 

 Distributed throughout all the coasts of India as far as Arabia, 

 in Assam, the Archipelago, Southern China, Tropical Australia, 

 and Polynesia. This is the species referred in the ' Botany of 

 the Herald ' to P. fascicularis, Lam., which Mr. Kurz says is a 

 synonym, and not a distinct species, as described by Kunth. 



*Faiidam sp. 



Another Screw-pine occurs not uncommonly in ravines and 

 shady woods. It is stemless and with long mottled leaves, which 

 are brittle and readily crack across, not breaking in two, but 

 leaving the part above the fracture to hang down in a flaccid 

 manner. The fruit, which I have only seen on one occasion, when 

 two were gathered by the late Dr. Harland, is ovoid, and the 

 drupes (which, I think, are collected in phalanges) are crowned 

 by two strongly curved spines coalescent at the base. I have no 

 specimen of either foliage or fruit in my herbarium. 



*Phoenix faxinifera, Roxb. Fl. Ind. iii. 785 ; Kunth, Enum. Plant, iii. 



267; Hance in Seem. Joum. Bot. vii. 15. ( = P. acaulis? Benth. Fl. 



Hongh. 340.) 

 If, as is most likely, this is identical with Loureiro's P. pusilla, 

 that name, as the oldest, must be restored. 

 *Thysan.otus chinensis, Benth. ; Hance in Ann. Sc. Nat. Par. ser. 5, v. 



245. 

 On the grassy hill-slope above the village of Pok fu lum, by 

 the path descendiag from the Gap. I have shown in the above 

 place th3,t th0 petals of this species have as long and conspicuous 

 a fringe as in its Australian congeners. 



