Eulaliopsis binata: A new C_(4)plant

The photosynthetic characteristics and the leaf anatomical structure of Eulaliopsis binata were studied, therefore explained that Eulaliopsis binata were a new C_(4)plant. The average-daily photosynthetic rate of Eulaliopsis binata was (CO_(2))37.18mg·dm~(-2)·h~(-1), the hightest 59.90mg·dm~(-2)·h~(-1). The photosynthetic rate reached the hightest from mid June to mid August, and decreased obviously after September. Its the diurnal variation was an unclear two-humped curve. The carbon dioxide compensation point was low, which was (CO_(2))1.2~4.2mul·L~(-1)air, and photorespiration intensity was very weak, only within 0~1.81 mg·dm~(-2)·h~(-1), chla/chlb being 3.69±0.50. The leaf blade width was 0.34~0.40cm, the leaf veins were dense. The total number of big and small bundle was 54~72, and the bundle sheath cells had many big chloroplasts, which arranged centrifugally in a curve.