MATEllIALS FOE A FLOEA OF FORMOSA. 395 



Carex Sasakii Hayata sp. nov. Culmi altiores ? sursum 1-2- 

 foliati acute triqueti-i glabri ad angulos acuti vel subalati a facie 

 4 mm. lati. Folia versus apicem culmi linearia circ. 60 cm. longa 

 culmos valde excedentia 1 cm. lata utraque glabra subtus 

 distincte et tenuiter co^-tata, supra costis impressis, utraque latere 

 1-nervata, inter costas nervös et margines multinervulosa, 

 subtus pallidiora, basi breve vaginosa, vaginis 5-7 mm. longis ad 

 nodos plus minus ventricosis obliquis, ligulis brevissimis obliquis. 

 Racemi plus minus ramosi circ. 15 cm. longi, sub quoque ramo 

 1-bracteati, bracteis longissimis racemum valde superantibus, ramis 

 inferiore cum rhacbibus a basi usque ad supra medium connatis super- 

 ioro liberis, spicis breve pedunculatis vel subsessilibus erecto-descen- 

 dentibus. Spicse terminales J gracillimge, cylindrico -filiformes, 6 cm. 

 longse 1^ mm.-2 mm. latae, breve pedunculatse ; reliquse androgynse 

 vel fœminese, validiusculse, cylindricas, 8 cm. longse 0-7 mm. latae 

 floribus patentibus, partibus superioribus J brevibus vel obsoletis, 

 rarius ad utraque extremitatem J, medio Ç. Fl. J : squamœ 

 elongato-oblongge, vel oblongo-lanceolata?. 4-5 mm. longse 1 mm. 

 latae, dorso costatse, apice in aristam productse, (aristis le mm. 

 longis minute hirtellatis), arete imbricate, filamentis tenuissimis 

 crispatis albis, anthcris lineai-ibus 2J mm. longis J mm. latis 

 rubescentibns apice apiculatis basi breve obtuso-sagittatis. Fl. Ç : 

 squam96 elongato-ovata? 3 mm. longas acuminatse IJ- mm. la tas 

 dorso costatse, (costis viridibus ad apicem in acumen productis, 

 acuminibus plus minus minute hirtellatis), margine integrœ, 

 basi contractse \ mm. lata'. Utriculus pallidus, plus minus patens, 

 antice recurvus ovoideus, 3^ mm. longus 1 mm. latus vel 

 latior, apice rostratus, (rostris brevibus leviter recurvatis), basi 

 obtusus, latere costatus, glaber apice breve bidentatus. Acbgenium 

 triquetro-ovoideum ol)longum vel obovoideum utrinque acutum, 



