70 CYPERACEE. 
21mm. latus apice breve rostratus 2-dentatus basi attenuatus sursum oblique 
recurvus. Nucula obovoidea apice rotundata basi acuta acute triquetra 3 mm. 
longa 2mm. lata levis basi stipitata, stipite flexuoso tortuoso. 
Has. Sharyoto, leg. B. Hayara, Mart. 1916. 
Near Carex tatsutakensis Hay.; but differs from it in the flowering scales 
which are aristate at the obcordate apex. 
Carex taihokuensis Hayata sp. nov. Folia fasciculata 32?-50.em. longa 
5-8 mm. lata apice acuminata margine scaberrima, costa scabra. Calis Spicifer 
30 cm. longus basi 1—2-foliatus, foliis caulinis minoribus linearibus 4 cm. longis 
2mm. latis apice acuminatis, apice 2-bracteatus, bracteis linearibus 3 cm. 
longis 24 mm. latis acuminatis spicag valde superantibus. Spica 7 terminalis 
solitaria erecta tenuissima 6-7imm. longa Imm. lata pauciflorata; floruam 
bracteis imbricatis oblongo-linearibus 5mm. longis 2mm. latis apice arista 
2mm. longa instructis, arista scabra. Spice § laterales 1 cm.-2 cm. longs 
prope apicem caulis disposite ad axillas bractearum solitarize, pedicellis 2-3 mm. 
longis, florum bracteis ovato-oblongis 34 mm. longis 14 mm. latis apice arista 
33mm. longa scabra instructis. Utriculus rhomboideo-fusiformis 6 mm. longus 
2mm. latus apice rostratus basi acutus triquetrus parce hirsutus apice 2- 
dentatus. Nucula obovoidea 34mm. longa 2 mm. lata levis apice rotundata 
basi acuta triquetra. 
Has. Prope Taihoku, leg. U. Faurie. 
Near Carex oligostachys Merss; but differs from it in the shorter utricles 
and oblong nutlets. 
Diplocarex Hayata n. g. 
Diplocarex Matsudai Havata sp. nov. (Fig. 47). Folia linearia coriacea 
60 cm. longa 6 mm. lata apice acuminata utraque facie et margine scabrida apice 
acuminata. Caulis spicifer haud foliatus 60 cm. longus triquetrus, spicis a medio 
caulis sursum remote dispositis basi bracteatis, bracteis yaginiformibus atro- 
fuscentibus 3-4 cm. longis 3mm. latis apice plus minus laminiferis, laminis 
minoribus linearibus. Spica 7 : terminalis solitaria pedunculata cylindrica recurva 
5-7 cm. longa 2 mm. lata; spicis lateralibus tenuibus ceylindricis plus minus 
recurvis 6-7 cm. longis 4mm. latis ad axillas bractearum solitariis. Fl. 2: 
