GRAMINEJS. 



Stem shorter prostrate at the base, but ascending under panicles ; 



leaves soft, hirsute 4 



4. Flowers nearly glabrous 4. 7. formula. 



Flowers densely hirsute 5. J. debilis. 



1. Isachne heterantha HAY ATA sp. nov. (Fig. 28). Caul is basi 



procumbens apice ascendens basi ad nodes radicans, interuodiis 2-3 cm. longis, 



multi-sulcatus multi-striatus teres ad nodos barbatus 30-40 cm. longus. 



Folia longe vaginata, lamina oblonga 2^-2 cm. longa 8-10 mm. lata apice 



acurninata basi cordato- 

 rotundata amplexicauli 

 utraque sea bra hirsuta 

 margine Integra nervo- 

 marginata ad margineni 

 scabra basi margine longe 

 ciliata, vagina 1-2 cm. 

 loiiga tubiformi bar- 

 bata, ligula ad barbas 

 numerosas reducta. 

 Panicula terminalis 4cm. 

 louga 3 cm. lata, ram is 



ramulis rectis patentibus 

 Fig. 2o, Isachne heterantha HAYATA ; a, a spikelet; 



b, glume I.; c, glume II.; d, gl. III. with its palea ; e, pi US millUS Cl'ispatis Sllb- 



glame III.: f, palea of gl. Ill, g, glume IV., h, the same, j^ pcdice l lis l_ 3mm . 

 seen from side ; i, glume I\ ; j, Palea of the glume 1^ .; 



k, caryopsis. longis. Spicula3 oblique 



globosre ad apice m pedicellorum supra glumas inferiores articulatim insitae; gl. 

 I. et II. aequiformes oblongre 1^ mm. longre membranacese 5-7-nervias ; gl. 

 III. tenuissime membranacea oblonga 1^ mm. longa apice obtusa glabra 

 paleam conformem ferens ; glama I\ r . Crustacea oblonga 1 mm. longa obtusa 

 hirsuta valde convexa, palea dorso hirsuta plana margine interiore incurva 

 obtusa oblonga 1 mm. longa. 



HAB. Taihoku, Mentenzan, leg. Y. SHIMADA, Oct. 1913, (typus No. 1) 

 Taihoku, Oct. 1906, leg. G. NAKAHARA. 



Rather small form, resembling Isachne myosotis; but in this new 



