CYPERACE^E. 



117 



Fig. 34, Cladium jamaiceiise CBANTZ ; a, a 

 cluster of spikelets. 



Near P. glauca Void; but se- 

 parable from it in the very much 

 longer setre and longer spikelets. 

 Cladium P. BR. 



Cladium jamaicense 



CRANTZ (Fig. 34) ; HAYATA Mater. 

 Fl. Formos. p. 377. Our speci- 

 mens are a little different from 

 the typical form of the species. In 

 the former, the spikelets are arrang- 

 ed in the less numerous clusters 

 and the inflorescence is looser than in the latter. 



Scleria BERG. 



Scleria pubigera MAKING. 



HAB. Toyen, leg. T. SOMA, Oct. 1914 ; Daijiorin, leg. Y. SHIMADA, Oct. 

 1914. 



Compared with a specimen so labelled in the Herbarium at Tokyo. Our 

 specimens are more patently or sometimes retrorsely hairy, while the Japanese 

 are less patently hairy. 



Car ex Lixx. 



On working up the collections of Carc.v, I have principally followed the 

 system of G. KUKENTHAL appearing in EXGLER'S " Das Pflaiizenreich : 

 Cyperacese-Caricoideaj." Among the subgenera, Primocarex is not represented in 

 Formosa, while Vignea is represented by 1, Indocarex also by 5, and Eucarex 

 by 28 species. As to the arrangement of the sections of the subgenus Eucarex, I 

 have found it extremely difficult to follow KUKEXTHAL'S system, xlccording 

 to this eminent authority, the subgeuus is divided into two groups on the basis 

 whether utricles are " erostrati vel brevirostres raro longirostres, rostrum ore 

 truucatuni vel eniarginatuni raro leviter bidentatum," or "longius vel 

 brevius rostrati, rostrum ore bidentatum raro integrum." This arrangement 

 is not proved to be practicable in the Formosan species. The latter group is 

 divided into two divisions on the basis whether leaves are " iiunquam septato- 

 nodosa ' ; or " septato-nodosa." I am very much puzzled to understand 



