37 



Var. sarawakensis Martelli Webbia 4|1 (1913) 34, t. 17, f. 1-2, 

 4;2 (1914) 413. 



Sarawak, Beccari. Throughout the Indo-Malayan and Poly- 

 nesian regions especially near the sea. 



Potamogetonaceae. 



1. Potamogeton malainus Miq. 111. Arch. Ind. (1871) 46; 

 Aschers. and Graebn. in Engl. Pflanzenreich 31 (1907) 83. 



Borneo, fide Ascherson and Graebner 1. c. Tropical Asia and 

 Malaya; West Indies. 



Najadaceae. 



1. Najas graminea Del. var. angiistifolia Rendle in Trans. 

 Linn. Soc. Bot. 5 (1899) 424, Engl. Pflanzenreich 7 (1901) 18, 

 /. 5 V; Gibbs in Journ. Linn. Soc. Bot. 42 (1914) 172. 



Borneo, Motley; British North Borneo, Gibbs 2820, Clemens 

 96991 The variety in the Malay Peninsula, the species India to 

 Japan southward to Australia. 



Butomaceae. 



1. Limnocharis plumieri Rich, in Mem. Mus. Paris 1 (1815) 

 370, t. 19, f. 2; Winkler in Engl. Bot. Jahrb. 44 (1910) 518. 



Dutch Borneo, Winkler 3129. Introduced from tropical 

 America. 



Hydrocharitaceae. 



1. Halophila beccarii Aschers. in Nuov. Giorn. Bot. Ital. 3 

 (1871) 302; Becc. Nelle Foreste di Borneo (1902) 360. 

 Sarawak, Beccari 3666. Luzon, 



1. Hydrilla verticillata (Linn, f.) Royle 111. Bot. Himal. 

 (1839) t. 376. Hydrilla alternifolia Miq. 111. Fl. Archip. Ind. 

 (1871) 52. 

 Borneo, Korthals. India to Malaya. 



1. Enhydrias angustipetala Ridl. in Journ. Bot. 38 (1890) 

 69; Winkler in Engl. Bot. Jahrb. 44 (1910) 518. 



Dutch Borneo, Winkler 3367; Sarawak, Ridley. Malay 

 Peninsula. 



1. Ottelia alismoides (Linn.) Pers. Syn. 1 (1805) 400; Miq. 

 III. Fl. Archip. Ind. (1871) 55; Winkler in Engl. Bot. Jahrb. 44 

 (1910) 518. 



Dutch Borneo, Korthals, Winkler 2171. Tropical Asia through 

 Malaya to Australia. 



