55 



acutae ; gluma I. tenuissima medio enervia prope marginem utroque latere 



2-nervia margine interfere plicata glabra ; gl. II. 5-nervia cum gl. I. con- 



formis ; gluma III. 



cum palea conformis 



oblonga 2irnm. 



longa apice acuta 



indurata nitida. 



HAB. Anpin, 

 Sept. 1913, leg. T. 



SoMA. 



Differs from the 

 type in having the 

 4-nerved first and 

 5-nerved second 



glumes. In the type, 



Fig, 27, Paspalum distichum LINN, var. apinense HAYATA ; 



_ 1 a, a portion of a spike; b, the same, seen from back; c, a 



spikelet; d, gl. I.; e, gl. II.; f, gl. III.; g, a palea; h, a pistil; 



i> a caryopsis ; j, section of the same. 



II. Eriochloa H. B. et l\. 



Spikelets thinly hirsute, smaller ................................. 1. E. polystachya. 



Spikelets densely villose, larger ....................................... 2. E. villosa. 



1. Zriochloa polystachya B. H. et K; MATSUM. et HAYATA Enum. 

 PI. Formos. p. 498. 



2. Eiiochloa villosa KUNTH.; MATSUM. et HAYATA Enum. PI. Formos. 

 p. 498. 



III. Isachne R. BR. 



1. Flowers in a spikelet are neary alike, both hirsute or both glabrous 



.................................................................................... 2 



Flowers in a spikelet are unlike ; one is glabrous, the other 



hirsute ...................................................... 1. /. heterantha. 



2. Panicles spreading 10cm. long, branches spreading ____ 2. /. arisanensis. 

 Panicles contracted .................................................................. 3 



3. Stem erect, leaves rigid scabrous, but not hirsute, outer and flowering 



glumes glabrous ............................................. 3. K australis. 



