CYPEKACE^E. 103 



appeudicc depresso-conico-globosa 6 cm. longa 19-20 cm. lata ad simimum rotundata 

 atro-purpurea cava hac atque iliac grosse rugosa vel Irevi toto minute tenuissime 

 verrucosa. Fl. : densissime dispositi, stauiino 1 ; anthera sessilis transverse 

 insita lineari-rectaiigulari flavescens 4-5 mm. loiiga 2-3 mm. lata apice trun- 

 cata Isevis, loculis adiiatis linearibus crassis. Fl. ^ : pistillum densiuscule dis- 

 positum transverse insitum. Ovarium valde depresso-globosum glabruni leviter 

 purpurascens 3 mm. longum 5 mm. latum Ireve 3-loculare, parietibus crassissimis, 

 loculis parvis, ovulis solitariis loculum complete occupaiitibus ; stylo columiiari 

 1 cm. longo glabro leviter purpurascenti, stigmate tcrminali 3-lobato cineraceo. 



HAB. Tainancho : Ivareikusho, Takunansha, leg. S. YtJKi, Mai. 1914, fi. 



Near Amorphophallus campanulatus BLUME (ExGL. Arac. in EXGL. 

 PEAXTL Nat, Pfl.-fam. II-3, p. 127, fig. 81). 



Cyperaceae. 

 Cyperus Lixx. 



Key to the Formosan Species. 



(Principally following to C. B. CLARKE in HOOK. f. Fl. Brit. 



Ind. VI. pp. 597-1319). 



I. Inflorescence umbellate throughout or capitate ; spikelets digitate or 

 clustered, not spicate. Style-branches linear, rarely linear-lanceolate. 



Very small slender annual, umbels nearly head-like, very rarely reduced 

 to a single head. Spikelets small. Glumes mucronate . . . . C. untinatus. 

 Small or middle-sized, annuals or perennials ; rhozomc 0, or in C. Haspan 

 creeping. Leaves and branches moderately long, narrow, weak. In- 

 florescence umbellate. Glumes scarcely cuspidate. 



Nut pale brown subequally trigonous C diffonnis. 



Nut pale brown ovoid ^ length of obtuse glume C. Haspan. 



Nut marble-white plano-convex (plane face against rhachilla) 



C. flavidus. 



Tall perennial with green somewhat broad (broadest in the genus) often 

 3-iierved leaves. Umbels compound C. diffusus. 



II. Inflorescence umbellate ; spikes often mora or less corymbed ; spikelets 

 (sometimes very shortly) spicate. Style-branches linear. 



