190 ENUMERATION OF PHILIPPINE PLANTS 1^23 



LEMNACEAE 



1. SPIRODELA Schleiden 



« 



SPIRODELA POLYRRHIZA (Linn.) Schleid. in Linnaea 13 (1839) 392; 

 Hegelm. Monogr. Lemn. (1868) 151, 156; EngL Bot. Jahrb. 21 

 (1895) 284; Merr. FL Manila (1912) 134. 

 Lemna polyrrhiza Linn. Sp. PI. (1753) 970; Naves Novis. App. (1882) 

 296; Usteri Beitr. Ken. Philip. Veg. (1905) 131. 

 Northern Luzon to Mindanao, F. B. 11622 Curran, Merrill 5121, HU5. 

 Floating on stagnant fresh water at low and medium altitudes. Tem- 

 perate and tropical regiops of both hemispheres. 



2. LEMNA Linnaeus 



LEMNA PAUCICOSTATA Hegelm. Lemn. (1868) 294, Engl. Bot. Jahrb. 

 21 (1895) 294; Usteri Beitr. Ken. Philip. Veg. (1905) 131; Merr. 

 FL Manila (1912) 134, Sp. Blancoanae (1918) 93. 

 Lemna gihha Blanco FL Filip. (1837) 672, ed. 2 (1845) 468, ed. 3, 3 



(1879) 78; Naves Novis. App. (1882) 296, non Linn. 

 Lemna oligorrhiza Naves Novis. App. (1882) 296, non Kurz. 

 Luzon to Mindanao, floating on stagnant fresh water at low and medium 

 altitudes, often abundant. Widely distributed in the warmer parts of 

 both hemispheres. 



Local names: Inalia (Tag.); lia (Tag.); liya (Tag.). 



LEMNA TRISULCA Linn. Sp. PI. (1753) 970; Naves Novis. App. (1882) 



296; Hegelm. Lemn. (1868) 134, Engl. Bot. Jahrb. 21 (1895) 293. 



Luzon (Benguet), Mindanao (Lanao), Clemens, B. S. 8782 McGregor. 



Floating on stagnant fresh water at medium altitudes. Widely scattered 



in both hemispheres. 



EXCLUDED SPECIES 



Lemna MINOR Linn.; Naves Novis. App. (1882) 296. 



3. WOLFFIA Horkel 



WOLFFIA ARRHIZA (Linn.) Wimm. FL Schles. (1857) 140; Hegelm. 

 Monogr. Lemn. (1868) 124, Engl. Bot. Jahrb. 21 (1895) 301; Naves 

 Novis. App. (1882) 296. 

 Lemna arrhiza Linn. Mant. 2 (1771) 294. 

 Luzon (Pampanga, Bulacan, Rizal), Merrill Jf2H' Floating on stagnant 

 fresh-water pools at low altitudes. Warmer parts of both hemispheres. 

 Local names: Dugman (Bis.); lia (Tag.). 



EXCLUDED SPECIES 



WOLFFIA DELlLii Schleid. ; Naves Novis. App. (1882) 296. 



WoLFFiA SHLEIDENI Miq.; Naves 1. c. 



FLAGELLARIACEAE 



1. JOINVILLEA Gaudichaud 



JOINVILLfeA BORNEENSIS Becc. Nelle Foreste di Borneo (1902) 198. 

 Joinvillea malayana Ridley in Journ. Str. Branch Roy. As. Soc. 44 

 (1905) 199; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 181. 



