130 



CKUATOPHYLLE.E. OUCHIDE.E. 



Ceratophylleee. 

 Ceratophyllum LINN. 



Ceratophyllum pentacanthum HAY ATA sp. nov. (Fig, 57 a) C. de- 

 mersuin II AY ATA Gen. Iml. Fl. Formos. p. 73 (non LINN.). Fructiis oblongus 



plus minus complanatus 4 mm. longus 

 2 mm. latus apice basi latereque spi- 

 nosus, spinis apicalibus et basilaribus 

 aequilongis 12 mm. lougis ; spinis latc- 

 ralibus 7 mm. longis. Caeterum ut 

 Oeratophylli ifeincrsi. 



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. SHIM ADA, 



Pig. 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 



i/ C* / 



the flora of Formosa. 



Orehideae. 



Sarcanthtis LINDL. 



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

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

 longa 2 cm. lata apice obtusa ad summum inasqualiter 2-lobata, lobo altn . 



