26 52. LYTHRACEE. 
(2) Leaves oblaneeolate, spathulate or obovate, flowers at the axils of the 
lenves from the top to the middle, not forming a. distinet spike. (3) 
Leaves rounded, flowers in a distinet spike..... ....... Ji. votundiftrora. 
[ KH. indica. 
(9) Leaves obovate sd : * 
LR. indica. var. uliginosa. 
Leaves laneeolate ,.......... lll eese ss. FR. densiflora. var. formosana. 
Rotala densiflora Kar var. formosana Hayara in Marsuw, et Hay ra 
Enum. Pl. Formos. p. 149. Annual herb, very glabrous, base repent, stem 
tetragonous, 14-15 em. high. | Leaves opposite or ternate, sessile, lineur-oblong, 
entire, 1 em.-1.5 em. long, 4-3 mm. broad. — Flowers axillary, sessile, solitary, 
minute, minutely 2—braeteolate, braeteoles linear. 1.5 mm. long. Calyx tubuloso- 
eampanulate 2 mm.long, dentate, primary teeth 5 acute valvate as long as 
petals, with appendix at the sinus. Petals 5, inserted at the throat of calyx, 
rounded, obtusely aeuminate, very small. Stamens 5, inserted at the middle 
of ealyx-tube, filaments filiformed. ^ Ovary obovoid, immersed within the ealyx- 
tube, 5-eelled; style short; ovules c, placenta axial. — Capsules not yet 
known. 
Har. Paehina, Taihoku. 
Rotala indica Kanwr; Marsuw. et Havara. Enum. Pl. Formos. p. 149. 
Har. Bankinsing. 
DisrRm. | Malaya to Japan. 
Rotala indica vr uliginosa Kanuwr; Marscw. et Havara. Enum. PI. 
lormos. p. 150. 
Har. C"Paihoku. 
DrsrgREPB. — Malaya and. India. 
Rotala leptopetala Kane; Marsuw. et. Havara. Enum. Dl. Formos, 
p. 150. 
Har. "Taito, Kisaijirokusha, Koshün, 'Takow. 
DrsrRm. | China, Loo-choo, India, Malaya. 
Rotala mexicana Cu. et Scu, ; Marsuw, et HavarA. Enum, PI, Formos, 
p. 150. 
Har, "Paihoku, 
