130 



CEHATOPHYLLE/E. OKCHIDE^E. 



Ceratophy Lleae. 

 Ceratophyllum LINN. 



Ceratophyllum pentacanthum HAYATA sp. nov. (Fig. 57 a) O. de- 

 mersum HAYATA Gen. Ind. FL Formos. p. 73 (non LINN.). Fructus oblongus 



plus minus complanatus 4 mm. longus 

 2 mm. latus apice basi latereque spi- 

 nosus, spinis apicalibus et basilaribus 

 sequilongis 12 mm. lougis, spinis late- 

 ralibus 7 mm. longis. Cfeterum ut 

 Ceratapliylli demersi. 



HAB. Taihoku, leg. T. MAKING, 

 Nov. 1896. 



Differs from all the species known 

 to us in having fruits with 5 spines. 



Ceratophyllum submersum 

 LINN. (Fig. 57 b) ; SOWERBY Eng- 

 lish Botany VIII. p. 124, t. 1277; 

 THOME Fl. Deutsch. Ost. Schw. II. 

 p. 121. 

 . HAB. Mato, leg. Y. SHIMADA, 



Fig. 57 ; a, a fruit of Ceratophyllum 

 pentacanthum HAYATA; b, a fruit of Cerato- 

 phyllum submersum LINN. 



Oct. 1915. 



Easily distinguished from C, demersum by the unarmed fruits. New to 

 the flora of Formosa. 



Orehideae. 



Sarcanthiis LINDL. 





 Sarcanthus uraiensis HAYATA sp. nov. (Fig. 58) Epiphytica. Caulis 30- 



40cm. longus glaber teres suberectus flexuosus. Folia alterna linearia 20cm. 

 longa B cm. lata apice obtusa ad summum inaequaliter 2-lobata, lobo altro 



