56 



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. 7. debilis. 



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



procumbens apice ascendens basi ad nodos radicans, internodiis 2-3 cm. longis, 



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



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



acuminata basi cordato- 

 rotundata amplexicauli 

 utraque scabra hirsuta 

 margine Integra nervo- 

 marginata ad marginem 

 scabra basi margine longe 

 ciliata, vagina 1-2 cm. 

 longa tubiformi bar- 

 bata, Kgula ad barbas 

 numerosas reducta. 

 Panicula terminalis 4cm. 

 longa 3 cm. lata, ramis 

 ramulis rectis patentibus 

 plus minus crispatis sub- 

 glabris, pedicellis 1-3 mm. 

 longis. Spiculas oblique 



Fig. 28, Isachne heterantha HAY ATA ; a, a spikelet ; 

 b, glume I.; c, glume II.; d, gl. III. with its palea ; e, 

 glume III.; f, palea of gl. III.; g, glume IV., h, the same, 

 seen from side ; i, glurue IV'; j, Palea of the glume IV.; 

 k, caryopsis. 



globose ad apicem pedicellorum supra glumas inferiores articulatim insitce; gl. 

 I. et II. eequiformes oblongse 1^ mm. longte membranaceae 5-7-nerviae ; gl. 

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

 paleam conformem ferens ; glama IV. Crustacea oblonga 1 mm. longa obtusa 

 hirsuta valde convexa, palea dorso hirsuta plana margine interiore incurva 

 obtusa oblonga 1mm. longa. 



HAB. Taiholm, Mentenzan, leg. Y. SHIM ADA, Oct. 1913, (typus No. 1) 

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



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



