130 



CEUATOPHYLLE/K. OUCHIDE/E. 



Ceratophy llese. 

 CevatophyUum Linn. 



CeratophyUum pentacanthum Hayata s}). nov. (Fig. 57— a) O. de- 

 mersum Hayata Gen. Ind. Fl. Formo«. p. 73 (iion Linn.). Fructus oblongus 



plus minns complanatus 4 mm. longus 

 2 mm. latus apice basi latereque spi- 

 nosus, spinis apicalibiis et basilaril)us 

 asquilongis 12 mm. longis, spinis late- 

 ralibus 7 min. longis. C}«terum ut 

 Cei xdiypltylli deiiw rsi. 



Hab. Taihoku, leg. T. Makino, 

 Nov. 1896. 



DiiFers from all the species known 

 t() us in haviiig fruits with 5 spines. 



Ceratophyllum submersum 

 LiNN. (Fig. 57 — b) ; Soweuby Eng- 

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

 Thome FL Deutscli. Ost. Schw. II. 

 p. 121. 



Hab. Mato, leg. Y. Shimada, 



Fig. 57 ; a, a fruit of Ceratophyllum 

 pentacanthum Hayata; b, a fniit of Cerato- 

 phyllum submersum LiNN. 



Oct. 1915. 



Easily distinguished frora C. demersum by the unarmed fruits. New to 

 the flora of Formosa. 



Orchidese. 



Sarcanthus Lindl. 



Sarcanthus uraiensis Hayata sp. nov. (Fig. 58) Epipliytica. Caulis 30- 

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

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



J 



