ORAMINE-SJ. 



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LI. MueMenbergia SCHREB. 



Muehleiibergia arisaiiensis HAYATA sp. nov. (Fig. 54). Caulis 60- 

 90 cm. longus gracillimus rectus erectus basi pauro repens, internodiis inferi- 

 oribus 5 cm. longis teretibus glabris lasvibus, ad nodos radicans a basi usque ad 

 medium remote foliatus sursum baud foliatus. Folia mediana linearia a se 5 



cm. distantia circ. 10cm. longa 4mm. lata 

 apice acuminata basi contracta ad basin hirsuta 

 cseterem glabra utraque pagine margineque sca- 

 berrima, ligula ^ mm. longa 2 mm. lata hyalina 

 apice truncata hirsuto-ciliata, vagina 6 cm. longa 

 baud hirsuta plus minus scabra. Panicula cylin- 

 drica 18cm. longa, ramis primariis scabris alternis 

 2-3-fasciculatis ascendentibus ad rhachin pani- 

 culte fere contactis 2-3 cm. longis, fasciculis 1-2 

 cm. remotis. Spiculse generaliter sed baud semper 

 geminatim secus rhachin ramulorum panicularum 

 disposita?, altra longiore altra breviore pedicel- 

 lata, pedicellis brevioribus -| mm. longis, longi- 

 oribus 1mm. longis scabris; gluma I. ovata 

 semi-hyalina ^-^ mm. longa apice obtusa glabra ; 

 gluma II. semihyalina oblonga If mm. longa 

 obtusa cum gl. I. persistens ; gluma III. 

 lanceolata 2 mm. longa mm. lata apice acumi- 

 nata 2-dentata, inter dentes arista 8 mm. longa 

 scabra instructa dorso 3-costata purpurea ad 

 costas scabra basi hirsuta ; gluma IV. lanceolata 

 apice acuminata 2 mm. longa purpurea basi 

 hirsuta 2-costata, ad costas scabrida, basi dorso 

 hirsuta ; palea 0. Anthera ellipsoidea. 

 mm. longa ^ mm. lata longitudinal iter rugulosa. 

 HAB. in monte Arisan, ad 2500m. alt., leg. U. FAURIE, Dec. 1914. 

 Near M. japonica STEUD., but differs from it in having far much smaller 

 I. and II. glumes. 



Fig. 54, MueMenbergia ari- 

 sanensis HAYATA. a, a spikelet ; 

 b, gl. I.; c, gl. II.; d, gl. III.; 

 e A > glume IV., seen from 

 different sides ; h. i, a stamen, 

 seen from different sides ; j, a 

 caryopsis. 



Caryopsis ellipsoidea '. 



